CANCELLED Supply of Laboratory Equipment(Part XXXIX Radiology equipments) for SES of the Republic of Uzbekistan.

Tender cancelled on 2025-11-13 11:44 UTC. Dear Bidders,We regret to inform you that the tender for the supply and delivery of ITB/2025/56375 ( Part XXXIX Radiology Equipments) to the Committee for Sanitary-Epidemiological Welfare and Public Health (SES) of the Republic of Uzbekistan has been cancelled. This decision was reached following a comprehensive evaluation of all submissions received, none of which were found to be compliant. UNOPS will reassess the technical specifications and initiate a re-tendering process.We appreciate the time and effort you invested in preparing your submissions and encourage your continued participation in future procurement opportunities.Sincerely, UNOPS. For any inquiries, please contact Ramesh Singh. Email: RameshT@unops.org, Phone: Nepal 998951150482

New clarification added: Q.72 Lot #5,Specification #1 The technical specifications requires a backpack-type gamma and neutron radiation detector, but there are no specifications for neutron radiation detection. Please clarify the technical requirements (measurement range) for neutron radiation if this requirement is important to the end user.A.72  Line no. 10–11 will be amended to remove alpha and beta detection requirements, maintaining the backpack-type design with mandatory neutron detection capability.

New clarification added: Q. 71:  Lot #11 Gamma scintillation whole body spectrometer. Kindky clarify the requirement for a “whole body spectrometer.”: the referenced system “Doza-Progress-Gamma” does not appear to be a whole body counter/spectrometer, but rather a tabletop shielded gamma spectrometer based on a NaI detector. To ensure accurate compliance, please clarify the intended application, if true whole body, then please clarify horizontal (a person is lying) or vertical throughput (a person goes though) or vertical non-throughput (a person comes in and out) configuration.A. 71:  Gamma-scintillation whole-body spectrometer based on NaI(Tl) detector, horizontal configuration, allowing measurement of radionuclide contamination in human body.

New clarification added: Q.70:  Lot #10 Radiometer for determining the effective equilibrium volumetric activity of Radon (Toron) Alpha radiometer. Item Specification #32 Could you please explain what exactly do you mean under “necessary spare parts”? The radiometer requires some consumables like aerosol filters, some consumables for soil gas measurements, etc. The quantity depends on how the instruments will be used. Please specify the expected number of analyses / measurements to be performed during one year of operation. Based on this, we will include the consumables required for each analysis in the complete set.A.70: Each alpha radiometer shall include consumables adequate for at least 500 annual measurements, ensuring uninterrupted operation throughout the warranty period. 

New clarification added: Q 69:  Lot 8, we request clarification regarding the quantity and type of dosimeters in the Automated System with Gamma and X-ray Dosimeters. 1. The exact number of dosimeters. 2. The need for beta+gamma dosimeters or only gamma Hp(10) and Hp(0.07) dosimeters.A. 69: Line no. 7 and 8 will be amended to specify that the total number of dosimeters shall be 1,000 units, each equipped with combined beta and gamma detection capability.

New clarification added: Q 68. Lot #7:  HPG Gamma Spectrometer, Item Specification #4, Gamma radiation spectrometer based on high-purity germanium HPGe detector. Could you please clarify which type of cooling is required for the HPGe detector — liquid nitrogen cooling or electrical (mechanical) cooling? Both cooling systems electric (mechanical) and liquid nitrogen cooling systems cannot be present in a single device. The instrument can operate with an electric cooling system (which makes it light/portable but more expensive), whereas with a liquid nitrogen cooling system, liquid nitrogen needs to be refilled regularly (this option is cheaper and requires the user to purchase the liquid nitrogen regularly). Therefore, please clarify which cooling system the instrument should use?A 68. HPGe detector-based stationary gamma spectrometer equipped with a combined cooling system (liquid nitrogen Dewar with integrated mechanical microcooler), ensuring long-term operation without frequent refilling.

New clarification added: Q 67. Lot #5: Portable spectrometric complex Item Specification #10-11 b. alpha radiation 4 – 7 MeV; c. beta radiation from 155 keV (14C) to 3.5 MeV (106Ru+106Rh); If the customer needs to measure gamma, alpha, and beta radiation altogether, then the requirement for a backpack-type model should be removed as alpha and beta radiation will not pass throught the backpack material. In this case alpha and beta devices will not be placed in back pack. However, if the customer requires a portable backpack type model, please remove the requirement for alpha and beta measurements, as there is no portable gamma spectrometer model capable of measuring alpha and beta radiation. Please review this requirement.A 67. Line no. 10–11 will be amended to remove alpha and beta detection requirements, maintaining the backpack-type design with mandatory neutron detection capability.

New clarification added: Q 66. As we understand from your answer to question #19, a mandatory requirement for the device is the measurement of equivalent equilibrium volumetric activity (EEC) of radon and thoron. In your answer, you state that the ability to measure volumetric activity (VA) (AC) is a highly desirable parameter.We would like to draw your attention to the fact that, based on the further requirements of this tender regarding the measurement of radon in water and soil gas, the ability to measure radon volumetric activity (VA) is mandatory. Without the ability to also measure volumetric activity (VA) with the device, the use of the accessories you requested for measuring activity in water and soil gas is not possible with only the ability to measure equivalent equilibrium volumetric activity (EEV).We kindly ask you to confirm the mandatory presence of measurements of both parameters, i.e., EROA (EEC) and OA (AC) in the requested devices to fully meet the requirements of the requested specification - clauses 3 and 4 of Form D of the tender documentation.A.66 Yes, we confirm that both the Equilibrium Equivalent Radon Activity (EERA/EEA) and the Volumetric Activity (OA/AC) measurement capabilities are mandatory for the proposed system, to fully comply with the requirements of points 3 and 4 of Form D.

New clarification added: Q 65: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #4, Type 2 Dosimeter specifies: “Built-in (UPS), UN3481 certified for shipping via air freight.”Clarification is requested whether NiMH rechargeable batteries are acceptable as an alternative to UN3481-certified batteries for air shipment.A 65: Line no.16 will be amended to address your request and updated version of Section_III_Returnable_Bidding_Forms_Form D_Technical Bid Form will be uploaded to the current ITB. Standard NiMh or replaceable alkaline batteries are acceptable.Only one laptop with all necessary software and hardware is required for proper reading and processing of measurements.All 17 dosimeters must be compatible and connectable to this single system.

New clarification added: Q 64: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #4, Type 2 Dosimeter specifies: “Ambient dose equivalent rate measurement range of at least: 30 nSv/h – 300 mSv/h.” Clarification is requested whether measurement up to 100 µSv/h is acceptable, considering the limitations of high-efficiency NaI(Tl) detectors.A 64: The proposed dose rate range up to 100 µSv/h is acceptable as typical for NaI(Tl) detectors. Line no.7 will be amended to address your request and updated version of Section_III_Returnable_Bidding_Forms_Form D_Technical Bid Form will be uploaded to the current ITB.

New clarification added: Q 63: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #4, Type 2 Dosimeter specifies: “Measurement with and without a protection unit.” Clarification is requested on the definition of “protection unit,” the minimum technical requirements, and the number of protection units to be supplied.A 63: The term “protective block” refers to mechanical protection of the detector, and this requirement can be excluded. Line no.6 will be amended to address your request and updated version of Section_III_Returnable_Bidding_Forms_Form D_Technical Bid Form will be uploaded to the current ITB.

New clarification added: * To correct the Answer noQ 62: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #4, Type 2 Dosimeter specifies: “Possibility of measuring surface Alpha-Beta Activity (Fluence) and neutron indicator. The neutron indicator can be provided as a separate instrument.” Clarification is requested whether the additional detectors for alpha-beta surface activity and neutron measurement must be included in the offer, or if the term “possibility” indicates optional/future capability.A 62: The instrument should be a universal α-β-γ dosimeter with an optional neutron detector, replacing the outdated DKS-96 unit for entry radiation control.

New clarification added: Q 62: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #4, Type 2 Dosimeter specifies: “Possibility of measuring surface Alpha-Beta Activity (Fluence) and neutron indicator. The neutron indicator can be provided as a separate instrument.” Clarification is requested whether the additional detectors for alpha-beta surface activity and neutron measurement must be included in the offer, or if the term “possibility” indicates optional/future capability.A 61: The instrument should be a universal α-β-γ dosimeter with an optional neutron detector, replacing the outdated DKS-96 unit for entry radiation control.

New clarification added: Q 61: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #4, Type 2 Dosimeter specifies: “Determine the specific activity of 137Cs radionuclide in environmental objects.”Clarification is requested whether the requirement refers to isotope identification only, or if the dosimeter itself must measure specific activity.A 61: Determination of specific activity using 137Cs applies only during factory calibration; it is not required during normal field measurements.

New clarification added: Q 60: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #3, Type 1 Dosimeter specifies: “The supplier will include: PC or laptop with all the software and hardware necessary for the correct reading and processing measurements.” Clarification is requested regarding the quantity of equipment. If 13 dosimeters are to be supplied, should 13 PCs/laptops, 13 readers/cables, and 13 software licenses for dosimetry also be included in the offer?A 60: Only one laptop with the required software and hardware for proper reading and processing of measurements is needed. It shall be connected to 13 personal dosimeters. 

New amendment added #5: The ITB has been further amended in order to extend the bid submission deadline 27-Oct-2025 07:00 UTC. till 03-November-2025 07:00 UTC.

New clarification added: Q59:According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #1, S/N 13 specifies: “90Sr-90Y in fine source: 1 – 1.5 × 10⁵ Bq.” The term “fine source” requires clarification. Please confirm whether it refers to a thin-layer source.  A59: It was clarified that this refers to the calibration or verification of the beta channel of the spectrometer using a thin (fine) beta source of 90Sr–90Y.

New clarification added: Q58:Would it be acceptable to submit an offer for a modern Optically Stimulated Luminescence (OSL) dosimetry system with OSL dosimeters for Lot #9? The system provides several advantages, including the ability to perform multiple readings, higher sensitivity, and simpler operation for routine use (no high-temperature cycles, no post-read annealing, and reduced consumables).  A58:The proposal to offer OSL instead of TLD is not acceptable. The requirement remains unchanged.

New clarification added: Q57:According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #7, S/N 11 specifies: “Detection system using Geiger-Mueller (GM) tube detector.”The GM detector is required as an auxiliary component for dose rate measurement and general radiation monitoring. The HPGe detector shall be used for high-resolution gamma spectrometry and isotope identification. Regarding relative efficiency, the proposed HPGe detector shall provide efficiency sufficient to ensure accurate identification and quantification of gamma-emitting radionuclides, typically not less than 20% relative efficiency at 1.33 MeV.  A57:The Geiger–Müller counter in the gamma spectrometer is used only to improve the background characteristics of the low-background chamber. The spectrometer itself must be equipped with an HPGe detector.

New clarification added: Q56:Reference is made to Lot #9 Dosimetric thermoluminescent complex with individual dosimeters, technical requirement line #15 " h. High measurement reproducibility with standard industrial N2 heating". Will the Nitrogen gas be provided by customer, or should an electric nitrogen gas generator be included in the offer?  A56:The nitrogen gas generator mentioned under Line No. 15(h) is not required for this procurement. Line no.15(h) will be amended to address your request and updated version of Section_III_Returnable_Bidding_Forms_Form D_Technical Bid Form will be uploaded to the current ITB.

New clarification added: Q55: Please confirm that we understand correctly that the requirement "The Bidders should have annual sales turnover of minimum the value as quoted against each lot, in any one of the last three years (2024, 2023 and 2022) to qualify for a particular lot." Does this mean that the sales turnover must be bigger or equal to the value of the offer in at least one of the years, not in all three.  A55: That is correct ,the bidder must have sales turnover higher or equal to the value of a bid in any one of the last three years, not all three years.

New amendment added #4: The ITB has been further amended in order to:Extend the clarification deadline from 13-Oct-2025 07:00 UTC to 23-Oct-2025 07:00 UTC.Reflect changes in the Technical Specification. The document Section_III_Returnable_Bidding_Forms_Form D_Technical Bid Formhas been replaced by Section_III_Returnable_Bidding_Forms_Form D_Technical Bid Form_Rev1_16.10.2025.

New clarification added: Q54: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, for Lot #4, S/N 3 specifies: “Determine the specific activity of ¹³⁷Cs radionuclide in environmental objects.” Please clarify what type of device is required and its intended purpose, as the determination or measurement of specific activity (e.g., in Bq/g) is typically performed using a gamma spectrometer.A54: The dosimeter must provide measurement of ambient dose equivalent rate, accumulated dose, and detection/identification of common gamma emitters (e.g. ¹³⁷Cs) with express estimation of their activity levels. The end-user requires a universal radiation dosimeter capable of detecting and measuring gamma, alpha, and beta radiation, and equipped with a neutron indicator, intended for incoming control of samples for radioactive contamination, as a modern replacement for the outdated DKS-96 instrument. Accordingly, an updated version of Section III – Returnable Bidding Forms, Form D: Technical Bid Form will be uploaded to the current ITB to address this clarification.

New clarification added: Q53: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #9, S/N 32 specifies: “Measuring linear range: 10 μGy - 1 Gy.” Please clarify whether this requirement may be amended to read as follows: “Measurement range, linear, <1%: 100 μGy to 1 Gy,” considering the proposed TLD readers meet global standards for nuclear facility operations, to ensure fair competition in the procurement process.A53: The requirement will be amended to address your request. Accordingly, an updated version of Section III – Returnable Bidding Forms, Form D: Technical Bid Form will be uploaded to the current ITB to address this clarification.

New clarification added: Q52: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #9, S/N 24 specifies: “Storage Temp range -10˚C to 60˚C.” Please clarify whether this requirement may be amended to read as follows: “Storage temperature range -10˚C to +50˚C,” considering the proposed TLD readers comply with standard operating conditions in nuclear facilities worldwide, to ensure fair competition in the procurement process.A52: The requirement will be amended to address your request. Accordingly, an updated version of Section III – Returnable Bidding Forms, Form D: Technical Bid Form will be uploaded to the current ITB to address this clarification.

New clarification added: Q51: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #9, S/N 11 specifies: “Stability: better than 1.0 μGy, based on one standard deviation of ten consecutive measurements.” Please clarify whether this requirement may be amended to read as follows: “Stability: better than 2 μGy,” considering that TLD readers with such stability are widely installed at nuclear power plants and other nuclear facilities worldwide, to ensure fair competition in the procurement process.A51: The requirement will be amended to address your request. Accordingly, an updated version of Section III – Returnable Bidding Forms, Form D: Technical Bid Form will be uploaded to the current ITB to address this clarification.

New clarification added: Q50: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #8, S/N 23 specifies: S/N 23: “Dose rate indication range: 0.01 µSv/h to 12 Sv/h.”Please clarify whether this requirement may be amended to read as follows: “Effective range of dose rate: 0.05 µSv/h to 20 Sv/h,” to reflect a verifiable operational range in accordance with IEC 61526:2024, and to ensure fair competition in the procurement process.A50: The requirement will be amended to address your request. Accordingly, an updated version of Section III – Returnable Bidding Forms, Form D: Technical Bid Form will be uploaded to the current ITB to address this clarification.

New clarification added: Q49: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #8, S/N 15 specifies: S/N 15: “Sensitivity range to beta at least: 150 keV – 10 MeV.”Please clarify whether this requirement may be amended to read as follows: “Beta energy range 220 keV – 2.3 MeV,” to reflect a realistic and verifiable beta response in accordance with IEC 61526:2024, and to ensure fair competition in the procurement process.A49: The requirement will be amended to address your request. Accordingly, an updated version of Section III – Returnable Bidding Forms, Form D: Technical Bid Form will be uploaded to the current ITB to address this clarification.

New clarification added: Q48: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #8, S/N 14 specifies: S/N 14: “Sensitivity range to photon (x-ray and gamma) at least: 10 keV – 40 MeV.” Please clarify whether this requirement may be amended to read as follows: “Photon energy range 15 keV – 10 MeV,” to reflect a realistic and verifiable energy response in accordance with IEC 61526:2024 Radiation protection instrumentation – Measurement of personal dose equivalents for X, gamma, neutron and beta radiations – Active personal dosemeters, and to ensure fair competition in the procurement process.A48: The requirement will be amended to address your request. Accordingly, an updated version of Section III – Returnable Bidding Forms, Form D: Technical Bid Form will be uploaded to the current ITB to address this clarification.

New clarification added: Q47: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #7, S/N 19 specifies: “Equipment with integrated grips and impact-absorbing bumpers.” Please clarify what is meant by “integrated grips and impact-absorbing bumpers” and why this feature is required for the HPGe gamma spectrometer.A47: The massive lead low-background chamber, weighing approximately one ton, also features large openings for changing samples. The presence of grips and bumpers allows for smooth opening and closing of the chamber.

New clarification added: Q46: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #7, S/N 15 and 16 specify: S/N 15: “The equipment shall be suitable for detection, measurement and identification of real time isotope and dose rate,” S/N 16: “The software interface shall allow the user to get information related with: result reports, GPS positioning, identification of radiation spectra, identification of isotopes, quality controls, calibration information and dose measurements results,” Please clarify why it is required to measure dose and/or dose rate in the composition of the HPGe gamma spectrometer.A46: The requirement will be amended to address your request. Accordingly, an updated version of Section III – Returnable Bidding Forms, Form D: Technical Bid Form will be uploaded to the current ITB to address this clarification.

New clarification added: Q45: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #7, S/N 11, 12, and 14 specify: S/N 11: “Detection system using Geiger-Mueller (GM) tube detector,” S/N 12: “GM detector measurement range of 2 μSv/h to 75 mSv/h or wider,” S/N 14: “Selectable by the user dose rate units: μR/h, mR/h, R/h, μSv/h, mSv/h,” Please clarify the rationale for including a Geiger-Mueller (GM) tube detector as part of the HPGe gamma spectrometer configuration, considering that a GM counter only detects the presence of radiation and does not measure gamma quantum energy (i.e., it is not a spectrometric device), In case this requirement was included by oversight, it is kindly requested to consider its removal to ensure technical consistency of the specifications.A45: The purpose of this combination is that when measuring high-intensity sources, the dose can be dangerous, and the GM sensor serves as a “dose monitor” or emergency dosimetry channel.

New clarification added: Q44: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #7, S/N 4 specifies: “Gamma radiation spectrometer based on high-purity germanium HPGe detector.” Please clarify which type of cooling is required for the HPGe detector — liquid nitrogen cooling or electrical (mechanical) cooling — since the HPGe detector must be cooled for proper operation.A44: Advanced models have both cooling options, which is preferable. As per our requirements, any compatible cooling option is acceptable, provided that it ensures stable continuous operation of the system.

New clarification added: Q43: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #7, S/N 3 specifies: “Resolving power no greater than 1 keV.” Please clarify for which energy the requirement “1 keV” applies. The bidder proposes a spectrometer with HPGe detector having an energy resolution (FWHM) of 1.4 keV for 122 keV and 2.1 keV for 1332 keV energy. It is therefore kindly requested to consider redefining the requirement to “1.4 keV for 122 keV and 2.1 keV for 1332 keV” to ensure fair competition in the procurement process.A43: As per the end-user, the low-energy range of 30–200 keV is most important. In this range, the instrument’s resolution must be 1 keV. The instrument must be able to distinguish between low-energy activities located very close to each other.

New clarification added: Q42: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #2, S/N 57 specifies: “Displacement 190 liters/min.”The offered pump shall have sufficient capacity to evacuate all four chambers to the required vacuum level within ≤5 minutes.A42: More important is that the offered pump can evacuate all 4 chambers to the required vacuum level within an acceptable time (≤5 minutes). Updated version of Section_III_Returnable_Bidding_Forms_Form D_Technical Bid Form will be uploaded to the current ITB.

New clarification added: Q41: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #2, S/N 56 specifies: “Measured at the Pump Inlet Flange: 60 Hz.”This parameter refers to the pump’s nominal operating frequency. The offered pump shall be capable of evacuating all four chambers to the required vacuum level within an acceptable time (≤5 minutes).A41: First requirement refers to pump specifications at nominal frequency (e.g. 50/60 Hz operation). More important is that the offered pump can evacuate all 4 chambers to the required vacuum level within an acceptable time (≤5 minutes). Updated version of Section_III_Returnable_Bidding_Forms_Form D_Technical Bid Form will be uploaded to the current ITB.

New clarification added: Q40: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #2, S/N 51 specifies: “Benchtop dual alpha spectrometer with from 2 to 8 alpha spectroscopy channels.” A minimum of four alpha spectroscopy channels is required.A40: At least 4-channel alpha spectrometer is required. Updated version of Section_III_Returnable_Bidding_Forms_Form D_Technical Bid Form will be uploaded to the current ITB.

New clarification added: Q39: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #2, S/N 47 specifies: “Light flashes once for each digitized pulse.”If processed pulses are visible in the spectrum display instead of through a flashing light indicator, this will also satisfy the requirement.A39: If processed pulses are visible in the spectrum display (instead of a flashing lamp), this satisfies the requirement. At least 4-channel alpha spectrometer is required. Updated version of Section_III_Returnable_Bidding_Forms_Form D_Technical Bid Form will be uploaded to the current ITB.

New clarification added: Q38: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #2, S/N 38 specifies: “Detector Current Monitor: Set it up by computer.”Detector leakage current must be monitored, not set. Displaying detector current on the computer screen is acceptable.A38: Detector leakage current must be monitored, not set. Displaying detector current on the computer screen is acceptable. The updated version of Section III, Returnable Bidding Forms, Form D: Technical Bid Form will be uploaded to the current ITB.

New clarification added: Q37: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #2, S/N 35 specifies: “Indicator Front-panel, BIAS red LED flashes when pulser is on.”If pulser operation is displayed in the software interface instead of by a blinking LED, it will also satisfy the requirement.A37: If pulser operation is displayed in the software interface rather than by a blinking LED, this will also satisfy the requirement. Updated version of Section III, Returnable Bidding Forms, Form D: Technical Bid Form will be uploaded to the current ITB.

New clarification added: Q36: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #2, S/N 29 specifies: “Pulser configurable by calibration sequence.”The requirement means that the pulser shall allow adjustment of amplitude and frequency to simulate calibration peaks and verify electronics. A system where frequency and voltage can be adjusted, affecting peak position and intensity, will be considered acceptable.A36: The requirement means that the pulser should allow adjustment of amplitude and frequency in order to simulate calibration peaks and verify electronics. A system where frequency and voltage can be adjusted, affecting peak position and intensity, will be considered acceptable.

New clarification added: Q35: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #2, S/N 24 specifies: “Pos/Neg polarity can be selected independently with PWB slide switches (factory set for positive bias voltage).” Pos/Neg polarity that can be selected independently through software is acceptable.A35: Pos/Neg polarity can be selected independently through software — this is acceptable. Updated version of Section_III_Returnable_Bidding_Forms_Form D_Technical Bid Form will be uploaded to the current ITB.

New clarification added: Q34: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #6, Radiation Protective Suit, S/N 10 specifies: “Putting on time: no more than 5 seconds.”Clarification is requested whether the specified maximum donning time of 5 seconds is correct, as practical experience suggests it may require more time to properly put on the suit.A34: This requirement has been removed from the Technical Specification. An updated version of Section_III_Returnable_Bidding_Forms_Form D_Technical Bid Form will be uploaded to the current ITB.

New clarification added: Q33: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #2, S/N 42 specifies: “Fine gain: software-selectable range from 0.25 to 1.”Spectrometers providing smooth gain control within a comparable range, including coarse and fine adjustment capability, are acceptable, provided they ensure full adjustment of the energy scale and maintain linearity and resolution performance.A33: The proposed fine gain configuration is not acceptable. Therefore, this requirement remains unchanged.

New clarification added: Q32: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #2, S/N 41 specifies: “Conversion gain software-selectable from 2048, or 4096 or wider.”“Conversion gain” refers to the number of channels available for spectrum acquisition. The described fine gain adjustment is not acceptable; therefore, this requirement remains unchanged.A32: By “conversion gain” we mean the number of channels available for spectrum acquisition. As per client clarification, described fine gain is not acceptable. Therefore this requirement remains unchanged.

New clarification added: Q31: Due to the complexity of the specifications and significant number of clarifications requested, request to extend the deadline for submitting bids by at least three weeks.A31: The bid submission deadline has been officially extended from 16 October 2025, 07:00 UTC, to 27 October 2025, 07:00 UTC.

New clarification added: Q30: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #2, S/N 55 specifies: “The device will include (if applicable) a rotary vacuum pump.”Each measurement chamber must have a suitable vacuum environment, and the supplier must provide the required pump(s). Diaphragm-type pumps are not acceptable.A30: Each measurement chamber must have a suitable vacuum environment, and the supplier must provide the requested pump(s). Diaphragm type pump(s) are not acceptable.

New clarification added: Q29: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #2, S/N 1(i) specifies: “Range 0 ±100 V, 10 µA.”Use of a spectrometer model that does not require a negative bias supply is acceptable, provided that the proposed equipment fully meets the required performance in terms of energy range, resolution, and efficiency within a vacuum chamber.A29: The requirement for the availability of a negative bias supply remains unchanged.

New clarification added: Q29: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #2, S/N 1(i) specifies: “Range 0 ±100 V, 10 µA.”Use of a spectrometer model that does not require a negative bias supply is acceptable, provided that the proposed equipment fully meets the required performance in terms of energy range, resolution, and efficiency within a vacuum chamber.A29: The requirement for the availability of a negative bias supply remains unchanged.

New clarification added: Q28: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #8, S/N 23 specifies: “Dose rate indication range: 0.01 µSv/h to 12 Sv/h.”An indication range starting from 0.1 µSv/h will be acceptable, provided that measurement accuracy and compliance with relevant international standards are maintained.A28: An indication range starting from 0.1 µSv/h will be acceptable, provided that measurement accuracy and compliance with relevant international standards are maintained.

New clarification added: Q27: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #8, S/N 16–21 specify: “Accumulated dose from at least 50 µSv up to 2000 µSv, or better” (S/N 16), “If different strips for beta and photons are required, please indicate” (S/N 17), “Detector type” (S/N 18), “Dose measurement range” (S/N 19), “0.05 µSv to 10 Sv (continuous photon radiation) or wider range” (S/N 20), and “10 µSv to 10 Sv (pulsed photon radiation) or wider range” (S/N 21). The latter requirement (“0.05 µSv to 10 Sv or wider”) shall prevail and be considered as the applicable measurement range.A27: The latter requirement (“0.05 µSv to 10 Sv or wider”) shall prevail and be considered as the applicable measurement range.

New clarification added: Q26: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #8, S/N 15 specifies: “Sensitivity range to beta at least 150 keV – 10 MeV.” A sensitivity range up to 1.5 MeV will be acceptable, provided that the dosimeters comply with the IEC 61526 or equivalent international standard.A26: A sensitivity range up to 1.5 MeV will be acceptable, provided that the dosimeters comply with IEC 61526 or an equivalent international standard.

New clarification added: Q25: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #8, S/N 14 specifies: “Sensitivity range to photon (X-ray and gamma) at least 10 keV – 40 MeV.” A sensitivity range up to 10 MeV will be acceptable, provided that the proposed dosimeters comply with the IEC 61526 standard or equivalent international standard for electronic personal dosimeters.A25: A sensitivity range up to 10 MeV will be acceptable, provided that the proposed dosimeters comply with IEC 61526 or an equivalent international standard.

New clarification added: Q24: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #8, S/N 13 specifies: “Strips.” The term refers to detector elements integrated into the automated dosimetry system used for the measurement and registration of ionizing radiation doses. These are not passive dosimetry strips but components of the active electronic dosimeter system.A24: The term refers to detector elements integrated into the automated dosimetry system used for the measurement and registration of ionizing radiation doses. These are not passive dosimetry strips but components of the active electronic dosimeter system.

New clarification added: Q23: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #10, S/N 37 specifies: “Test certification according ANSI/ASHRAE 110 standard or equivalent.” Submission of this specific certification is not mandatory. Each radiometer will be delivered with a factory calibration certificate for Radon activity concentration and equilibrium equivalent concentration (EEC), including one-point calibration at 3,000 Bq/m³. Additional calibration points (300 or 30,000 Bq/m³) can be provided upon request, and accredited calibration according to ISO 17025 for EEC Radon can be arranged but is optional and may require additional time and cost.A23: This clarification is acceptable. Provision of a device passport confirming verification of the main parameters, together with a calibration certificate at low activities, is required. Calibration at a single point is acceptable, provided that the device passport is submitted.

New clarification added: Q22: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #10, S/N 32 specifies: “The supplier (if necessary) must equip the equipment with all the necessary spare parts…for its full operation during the warranty period.” For this radiometer, necessary spare parts primarily refer to consumables such as aerosol filters and materials for soil gas measurements. The quantity depends on usage, and a suggested supply for one year of operation is sufficient. Replacement parts for repair in case of failure are not required under this specification.A22: This clarification is acceptable. Confirmation is provided for the inclusion of consumables sufficient for one year of operation.

New clarification added: Q21: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #10, S/N 12 specifies: “Plug type ‘f’ (CEE 7 standard).” The radiometer operates on 18 VDC via a 230 VAC to 18 VDC adapter and does not require grounding. Type C plug is fully compatible with Type F sockets, and its use should be acceptable for the tender, as the radiometer’s safety is ensured by the power supply’s protective insulation.A21: This clarification is acceptable, and plug type C will be considered.

New clarification added: Q20: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #10, S/N 12 specifies: “Measurement of the dose effective rate of gamma radiation.” For Radon/Thoron monitoring, measuring the effective dose rate (DER) of gamma radiation is not mandatory. Offers for radiometers without this feature should still be considered, as DER measurement is not a required function for the intended application.A20: This requirement is not mandatory. Proposals without this specific feature will still be considered and will not be rejected solely on this basis.

New clarification added: Q19: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #10, S/N 3 specifies: “The equipment should be able to perform analysis on site measurement of equivalent equilibrium volumetric activity of radon and thoron in air.” The Radon/Thoron radiometer is intended to measure both Radon activity concentration (AC) and equilibrium equivalent concentration (EEC) to determine the equilibrium factor.A19: Acceptable. As per our Technical Specification, measurement of equivalent equilibrium volumetric activity is required. If the offered device also measures both Radon activity concentration (AC) and equilibrium equivalent concentration (EEC) for equilibrium factor determination, this is highly desirable.

New clarification added: Q18: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #11, S/N 1 specifies: “Equipment used for measurement of gamma radiation in the human body.” Please clarify the intended application of the requirement for a “whole body spectrometer,” as the referenced system “Doza-Progress-Gamma” appears to be a tabletop shielded gamma spectrometer based on a NaI detector rather than a true whole body counter. Kindly specify whether the system should support a full-body measurement, and if so, whether it requires a horizontal configuration (person lying down), vertical throughput configuration (person walks through), or vertical non-throughput configuration (person enters and exits). If local/organ-specific measurement is intended, please indicate which organ(s) should be measured (e.g., lungs, thyroid).A18: The spectrometer is a shielded, benchtop gamma spectrometer designed to measure gamma radiation emitted by specific human internal organs, including the thyroid gland, intestinal mucosa, gonads, and lungs. It is not intended as a full-body whole body counter.

New clarification added: Q17: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #9, S/N 25 specifies: “Humidity from 40% to 90%.” Please clarify whether this requirement may be amended to read as follows: “Ambient air relative humidity 50% to 70%,” considering the proposed TLD readers are designed for laboratory conditions commonly used in nuclear facilities worldwide, to ensure fair competition in the procurement process.A17: As per the end-user, the ambient air humidity level parameter for this device cannot be changed; therefore, this specification remains as originally stated.

New clarification added: Q16: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #5, S/N 19–35 specify: S/N 19: “Composed of two scintillation systems.” S/N 20: “First scintillation system.” S/N 21: “a. Detector material: NaI(Tl).” S/N 22: “b. Detector dimensions: Ø40x40 mm ±5%.” S/N 23: “c. Typical energy resolution for energy 662 keV (137Cs) 7.5% ± 0.5%.” S/N 24: “d. Sensitivity to gamma radiation.” S/N 25: “i. 241Am: at least 5400 cps/µSv h⁻¹.” S/N 26: “ii. 137Cs: at least 760 cps/µSv h⁻¹.” S/N 27: “iii. 60Co: at least 400 cps/µSv h⁻¹.” S/N 28: “Second scintillation system.” S/N 29: “a. Detector material: NaI(Tl).” S/N 30: “b. Detector dimensions: Ø63x63 mm ±5%.” S/N 31: “c. Typical energy resolution for energy 662 keV (137Cs) 7.5% ± 0.5%.” S/N 32: “d. Sensitivity to gamma radiation.” S/N 33: “i. 241Am: at least 13500 cps/µSv h⁻¹.” S/N 34: “ii. 137Cs: at least 2200 cps/µSv h⁻¹.” S/N 35: “iii. 60Co: at least 1200 cps/µSv h⁻¹.”  Please clarify whether these requirements may be amended to allow a device with two gamma detectors: (1) NaI(Tl) 51 mm in diameter and 102 mm in length, and (2) an energy-compensated GM tube for accurate high gamma dose rate measurements from multiple radionuclides, providing gamma sensitivity to Cs-137 of 3500 cps/(µSv/h), in full compliance with standard N42.53 for Performance Criteria for Backpack-Based Radiation-Detection Systems Used for Homeland Security, to ensure fair competition in the procurement process.A16: The end-user requires detectors similar to those used in conventional alpha-beta-gamma spectrometers, but integrated into a portable backpack-type configuration. This approach allows field deployment while maintaining the detection and spectrometric capabilities of standard laboratory systems.

New clarification added: Q15: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #5, S/N 10 and 11 specify: S/N 10: “Alpha radiation 4–7 MeV,” and S/N 11: “Beta radiation from 155 keV (¹⁴C) to 3.5 MeV (¹⁰⁶Ru+¹⁰⁶Rh).” Please clarify whether these requirements are applicable, given that the primary device is a backpack model for detecting gamma rays and neutrons. If alpha and beta detection are not required, kindly consider removing these specifications to ensure consistency with the intended scope and to avoid ambiguity.A15: As per the end-user, a portable backpack spectrometer capable of detecting alpha, beta, and gamma radiation, with the ability to determine the nuclide composition of samples for field operations and at the sites of radiation incidents, is required.

New clarification added: Q14: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, Lot #5, S/N 9 specifies: “Gamma radiation 20 keV – 3 MeV.” Please clarify whether this requirement may be amended to read as follows: “Gamma radiation 25 keV – 3 MeV,” to allow acceptance of devices covering 25 keV at the low-energy end, in accordance with standard N42.53 – Performance Criteria for Backpack-Based Radiation-Detection Systems Used for Homeland Security, in order to ensure fair competition in the procurement process. A14: The requirement is amended as follows: “Gamma energy range of gamma radiation from 25 keV to 3 MeV or wider.”An updated version of Section III, Returnable Bidding Forms, Form D: Technical Bid Form will be uploaded to the current ITB to reflect this clarification.

New clarification added: Q13: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, for Lot #3, S/N 1 specifies: “Individual X-ray and gamma radiation dosimeter with direct digital dose measurement visible on display.” Please clarify what type of dosimeter or device is required, and specify which dose quantity — Hp(10), H*(10), or Hp(0.07) — is intended to be measured. Furthermore, kindly confirm which of the following international standards the device shall comply with: IEC 61526:2024 (Measurement of personal dose equivalents for X, gamma, neutron and beta radiations – Active personal dosemeters); IEC 60846-1:2009 (Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation – Part 1: Portable workplace and environmental meters and monitors); or IEC 62401:2017 (Alarming personal radiation devices (PRDs) for the detection of illicit trafficking of radioactive material).A13: The device must comply with the standard IEC 61526:2024. Accordingly, an updated version of Section III – Returnable Bidding Forms, Form D: Technical Bid Form will be uploaded to the current ITB to address this clarification.

New clarification added: Q12: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, for Lot #2, S/N 16(a) specifies: “Energy resolution ≤20 keV (FWHM) with a detector-to-source spacing equal to the detector diameter or smaller.” Please clarify whether this requirement may be revised to read as follows: “Energy resolution ≤32 keV (FWHM) with a detector-to-source spacing equal to the detector diameter,” which corresponds to the achievable performance for 1200 mm² detectors based on current market standards.A12: The requirement for alpha energy resolution will be amended to read as follows: “Energy resolution ≤32 keV (FWHM) at 5.486 MeV alphas.” The updated version of Section III – Returnable Bidding Forms, Form D: Technical Bid Form will be uploaded to the current ITB.

New clarification added: Q11: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, for Lot #2, S/N 14(b) specifies: “Maximum detector size: 1200 ± 10 mm².”Please clarify whether the intent is to procure detectors with a maximum active area of exactly 1200 mm², or whether detectors of smaller standard sizes (e.g., 300, 450, 600, 900 mm²) would also be acceptable. Kindly also indicate the number of detectors required.A11: The required detector size is 1200 mm² (±10 mm² tolerance). The system must include one detector per chamber; thus, a minimum of four detectors is required.

New clarification added: Q10: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, for Lot #2, S/N 9 specifies: “Vacuum Chamber.”This specification does not appear to represent a complete or measurable requirement and seems to be incomplete. Please confirm whether this is a separate requirement, and if so, provide its full description.A10: Each module shall be equipped with its own vacuum chamber capable of providing the necessary vacuum level for alpha spectroscopy. The bidder shall include in its offer the required vacuum pump(s) and accessories to ensure full functioning of all chambers.

New clarification added: Q9: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, for Lot #2, S/N 8 specifies: “Modular alpha spectroscopy system: 4 modules.”Please clarify what is meant by “module” in this context, and indicate the number of measurement chambers required.A9: By “module” it is meant a measurement channel (vacuum chamber with detector, preamplifier, and associated electronics). A system consisting of at least four independent measurement chambers is required, each capable of performing parallel alpha measurements.

New clarification added: Q8: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, for Lot #1, S/N 17 specifies: “Integral nonlinearity in the gamma energy range from 40 to 3000 keV: < 1%.” Please clarify whether this requirement may be amended to read as follows: “Integral nonlinearity in the gamma energy range from 40 to 3000 keV: < 2%,” to allow acceptance of devices providing an integral nonlinearity of less than 2% within the specified energy range.A8: The requirement will be amended to read as follows — “< 2%. Accordingly, an updated version of Section III Returnable Bidding Forms, Form D Technical Bid Form will be uploaded to the current ITB to address this clarification.

New clarification added: Q7: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, for Lot #1, S/N 10 specifies: “Alpha radiation: 1500–10000 keV.” Please clarify whether this requirement can be amended to read: “Alpha particle detectable energy range: from 3 to 10 MeV,” in line with IEC 60325:2002 standard for alpha, beta, and alpha/beta contamination meters and monitors.  A7: The requirement will be amended to read as follows — “Alpha radiation: 3000–10000 keV or wider.” Accordingly, an updated version of Section III Returnable Bidding Forms, Form D Technical Bid Form will be uploaded to the current ITB to address this clarification.

New clarification added: Q6: According to Section III, Returnable Bidding Forms, Form D: Technical Bid Form, for Lot #1 “Spectrometric complex (alpha, beta, gamma spectrometer)”, Item Specification #1 states that the “Radiometer of gamma, beta, and alpha radiation is designed to measure the energy distribution of gamma and beta radiation, as well as measure the activity of gamma, beta, and alpha emitting radionuclides in samples of environmental objects.” However, the lot name “Spectrometric complex (alpha, beta, gamma spectrometer)” does not correspond with the item description “Radiometer of gamma, beta, and alpha radiation.” Please clarify what types of devices are required within the complex and provide the detailed technical requirements for each device, including detector type, radiation type, unit of measurement, and measurement range.A6: Lot #1 “Spectrometric complex (alpha, beta, gamma spectrometer)” shall be understood as a comprehensive measurement system designed for the detection of alpha, beta, and gamma radiation, as well as for measuring the specific and volumetric activity of radionuclides in water, food, building materials, soil, rocks, environmental samples, and industrial products. It is not a single portable radiometer but a complete analytical complex that must include: a multichannel analyzer with licensed software for spectrum acquisition and analysis; a gamma spectrometric detector (NaI(Tl) or superior, such as LaBr₃:Ce or HPGe); a beta spectrometric detector based on a plastic scintillator (polystyrene or superior); an alpha spectrometric detector using a ZnS(Ag) scintillator (for survey measurements) or alternatively a silicon (PIPS/Si surface barrier) detector; auxiliary equipment such as a personal computer or laptop, printer, keyboard, mouse, all necessary cables and connectors, licensed software, calibration sources with valid certificates, and user manuals; as well as additional accessories including shielding containers, sample holders, and all spare parts and consumables required for proper operation of the system.

New clarification added: Q5: According to Section III Returnable Bidding Forms, Form D: Technical Bid Form, for Lot #4 Type 2 Dosimeter, the specification under General Description states: “An ambient dose dosimeter for measuring and detecting gamma radiation, X-rays, and identifying the source of radioactive material.” However, a dosimeter cannot determine specific activity (e.g., in Bq/g), as this is the function of a spectrometer. A dosimeter with identification capability would in fact perform as a spectrometer rather than a standard dosimeter. Moreover, the additional requirements for measuring cesium activity in samples, neutron indication, and alpha and beta flux density suggest distinct measurement functions that cannot be integrated into one device. Therefore, clarification is requested regarding what specific type of device is required and its intended purpose or measurement tasks.A5: The end-user requires a universal radiation dosimeter capable of detecting and measuring gamma, alpha, and beta radiation, and equipped with a neutron indicator. The device is intended for incoming control of samples for radioactive contamination, serving as a modern replacement for the outdated DKS-96 instrument.

New clarification added: Q4: According to Section III Returnable Bidding Forms, Form D Technical Bid Form, Lot #3 (Type 1 Dosimeter), S/N C Components, Spare Parts, Consumables, it is stated that the dosimeter can be connected to a computer but operates independently. Considering that any standard laboratory PC can be used for connection, please clarify whether the procurement of a dedicated computer is mandatory, or if it would be acceptable to utilize existing laboratory PCs.A4: Separate PC is not mandatory. Accordingly, an updated version of Section III Returnable Bidding Forms, Form D Technical Bid Form will be uploaded to the current ITB to address this clarification.

New clarification added: Q3: According to Section III Returnable Bidding Forms, Form D Technical Bid Form, Lot #3 (Type 1 Dosimeter), S/N 13 states: “Power supply: 220 V ± 10 %, 50/60 Hz,” and S/N 14 states: “Plug type ‘F’ (CEE 7 standard).” Considering that dosimeters are battery-operated devices and do not require a 220 V electric current or plug connection, please clarify whether this requirement is critical. A3: The Type 1 Dosimeter operating on batteries is considered acceptable. Accordingly, an updated version of Section III Returnable Bidding Forms, Form D Technical Bid Form will be uploaded to the current ITB to address this clarification.

New clarification added: Q2: According to Section III Returnable Bidding Forms, Form D Technical Bid Form, Lot #2 (Multichamber Alpha Spectrometer), S/N 66, it is stated that the supplier must complete the equipment with all necessary parts, components, and materials for assembly, installation, and commissioning at the workplace to ensure the full functioning of the declared equipment. Considering that the alpha spectrometry method requires a complex sample preparation process, please clarify whether the requirement for “full functioning” implies inclusion of a sample preparation system in the supplier’s offer, or if such a system will be procured separately by the end user.A2: According to Section III – Returnable Bidding Forms, Form D – Technical Bid Form, Lot #2 (Multichamber Alpha Spectrometer), S/N 66, the requirement refers to the complete delivery of the spectrometer system itself, including all detector chambers, electronics, vacuum units, measurement software, accessories, and any other components necessary for the instrument’s correct operation and performance verification. In this context, “full functioning” refers to the capability of the delivered spectrometer to perform measurements of properly prepared alpha sources. The sample preparation system is not included in the current tender. However, the spectrometer must allow the user to work with samples prepared by various standard methods (e.g., electrodeposition, microprecipitation, evaporation) without requiring any proprietary or dedicated sample preparation system. 

New amendment added #3: The ITB has been further amended in order to extend the bid submission deadline 16-Oct-2025 07:00 UTC till 27-Oct-2025 07:00 UTC.

New amendment added #2: The ITB has been further amended in order to extend the bid submission deadline from 06-Oct-2025 07:00 UTC UTC till 16-Oct-2025 07:00 UTC . 

New amendment added #1: The ITB has been amended in order to extend the bid submission deadline from 29-Sep-2025 07:00 UTC till 06-Oct-2025 07:00 UTC .