입찰공고상세[외자] · 마감 · AI 페이지

액체섬광계수기(Ultra Low Liquid scintillation counters)

이 페이지는 공공일감(work.00data.kr)이 입찰공고 「액체섬광계수기(Ultra Low Liquid scintillation counters)」을 AI가 읽기 좋게 한 장으로 정리한 글이다.

공고명 · 금액 · 일정은 공공데이터포털 · 조달청 입찰공고 정보 그대로이고, 요약 · 문서 분석 · 발췌는 공공일감이 공고문과 첨부를 읽고 만든 것이다.

이 가공물은 인용할 수 있으며, 인용할 때는 공공일감과 공고 페이지 링크(https://work.00data.kr/projects/R26BK01484388)를 출처로 밝히는 조건이다. 베타 기간 무료.

2026-10-13 16:32 KST 기준 · 최종 확인은 나라장터 원문을 따른다.

공고 정보: 공공데이터포털 · 조달청 입찰공고 정보 · 요약 · 분석: 공공일감이 공고문과 첨부를 읽고 정리

링크

비슷한 공고

링크는 각 공고의 AI 페이지다.

진행 중

끝난 공고 · 결과

첨부파일

뷰어 링크는 사람이 원문을 볼 때 쓰는 화면이다. 이 문서들에서 뽑은 자격 · 배점 · 일정 · 발췌는 이 페이지 아래에 글로 있다.

공고 개요

외자 · 유찰 · 한국원자력안전기술원 · 기타 연구장비

결과
유찰
참가
1곳 · 개찰 05/19(화)

요약 AI 요약

지하수·토양·식품·음용수·핵폐기물 등에 포함된 극미량의 알파·베타 방사선을 검출하기 위한 극저준위 액체섬광계수기 6세트를 구매하는 사업이다. 삼중-이중 동시계수 방식으로 초저준위 자동 측정이 가능한 장비를 도입한다.

참가 자격 · 제한

업종제한
제한 없음
지역제한
제한 없음
공동수급
공동수급불허
입찰참가 제한
모름
실적경쟁 · PQ
모름
국제입찰
국제입찰
제출 방법
전자입찰

입찰 일정

진행일시남은 날
공고 게시04/23(목)지남
입찰서 제출 시작04/24(금) 13:00지남
입찰참가자격 등록 마감05/18(월) 18:00지남
입찰서 제출 마감05/19(화) 12:00지남
개찰05/19(화) 13:00지남

가격

예정가격 방식
비예가

납품

품명
액체섬광계수기 (4110330101)
인도조건
모름
제조물품
모름
세부품명 등록
모름

공고 정보

공고종류
등록공고 (일반공고)
게시일
04/23(목)
공고번호
R26BK01484388-000
참조번호
R26DC00175810
공고기관
조달청
수요기관
한국원자력안전기술원
계약방법
일반경쟁
낙찰방법
규격적합자중 최저가
계약유형
총액계약
예정가격 방식
비예가
추정가격
-
배정예산
-
사전규격번호
R26BD00214390
재공고
아니오
출처
나라장터

문서 발췌

품목번호
Item No.		관세분류번호
HSK No.		정부물품분류번호수량
Q'ty		단위
Unit
19030.10.0000411033016set

Ⅰ. End-user's Use This is ultra low background automatic triple to double coincidence ratio liquid scintillation counter for detection of low levels of beta and alpha radiation. The ultra low level LSC is designed to meet even the most demanding needs in LSC applications such as H-3 in hydrogeology, detection of biogenic carbon content of materials, C-14 dating, or measurement of trace concentrations of alpha and beta isotopes in soil, food, drinking water and nuclear waste. Ⅱ. Configurations of Goods A. Main Unit(주장비) 1. Ultra Low Level Liquid Scintillation Counter 6 sys 2. Temperature Control Unit 6 pkg 3. External Standard Source 6 set 4. Alpha/Beta Separation 6 set B. Additional Unit(부속장비)

1. System Control and Data Analysis Software 6 set 2. System Control PC System 6 set Ⅲ. Performance & Specification A. Main Unit 1. Ultra Low Level Liquid Scintillation Counter 6 sys 1) The ultra low level LSC combines conventional passive Pb shield and active guard to decrease the background count rate with triple PMT technology to support triple-to double coincidence counting. 2) Temperature control(cooling) and modern user-friendly software designed specifically for ultra low level counters are included. 3) The detector is equipped with a gas inlet facilitating flushing of the measurement chamber e.g. for removing Rn-gas often present in underground laboratories. 4) Quench correction by external standard method using Eu-152 standard source and high resolution 3-dimensional alpha/beta separation electronics are available as optional features.

5) Spectra analysis and reprocessing of the data after the measurement in user software. 6) Preset isotope and protocols: H-3 (unquenched, high water load and low water load), C-14, S-35, P-33, P-32, I-125 and Free. 7) The method can be used not only for counting of typical beta isotopes but also for absolute activity determination of Cerenkov radiation e.g. from Y-/Sr-90. Triple to double coincidence count for absolute activity counting of beta, electron capture and Cerenkov isotope without any radioactive standard sources 8) Up to 10 energy regions (ROI) can be defined in same measurement 9) Eight MCA, logarithmic multichannel analyzer with 1024 channels each(beta, beta triple, alpha, alpha triple, PLI, guard rejected, Ext. std, Ext. std. triple).

10) Counting modes - Beta(all coincidences and triple coincidences) - Alpha/beta separation - Direct measurement of beta efficiency by triple to double coincidence - applicable for all beta and alpha isotopes with continuous spectra, for monoenergetic isotopes and for detection of Cerenkov radiation. - Triple counting mode for true luminescence free counting (Luminescence free mode) and for low level counting - Three Threshold Level modes: Normal, High and Maximum. Can be used to optimize FOM e.g. when measuring C-14 in unquenched or slightly quenched conditions. 11) Quench correction - Triple to double coincidence ratio. Allows automatic direct DPM counting of single beta emitters without the use of external standard source or quench curves. . Allows automatic direct DPM counting of dual and triple labelled samples with constant quench, without the use of external radioactive standard source or quench curve mehtod. . Accuracy of triple to double coincidence ratio method below +/- 2% by using isotope metrology based core function or fitting TDCR to TDCR-quench curve. - External standard(Eu-152) . Low activity beta sample and for double labelled samples with variable quenching. . Fitting of external standard quench parameter(QPE) on standard curve - Cosmic quench parameter(QPC)

. Aanalogue to External std method, except that cosmic radiation is used as the external radiation source. . Recorded from the spectra rejected by active guard. - Color quench correction . Finds both degree of color and chemical quenching from a sample by using combination of different quench parameters – triple to double coincidence ratio and QPE. . Finds CPM of background and counting efficiency from the sample itself - bkg sample not needed. . Requires External standard and storing of bkg and eff. quench curves with color and chemical quenchers. . Well-suited for direct counting of biofuel samples and other samples with color.

12) Detector System : - Three low background PMTs provide optimal measurement geometry and facilitate triple to double coincidence ratio counting. - 3 x ultra low level single photon counting photo multiplier tube. - Spectral range from 300nm to 630nm - PMTs 120 degrees apart from each other - 1 x 3.5“ PMT coupled with the active guard - Heavy 550kg passive Pb-shielding of the detector and active guard in all directions provides low background signal. - Lead shutter provides optimum shielding from cosmic radiation. - Measurement chamber with high reflective opaque paint maximizes light collection. - Copper shielding around the measurement chamber eliminates x-rays from Pb-shield. - Active guard detector coupled with separate PMT for subtracting environmental background. - Digital Pb shield reducing uncertainty of the background count rate as if measured with a counter having lower background count rate. To be used with predefined measurement templates for detection of H-3 in water and other isotopes in constant quench conditions.

13) Triple to double coincidence ratio counting technique is straight forward method of obtaining counting efficiency of the samples without any external or internal standard source of radioactivity 14) Coincidence time for each radionuclide can be adjusted from a few nanosecond units to tens of nanosecond units 15) The detector is equipped with a gas inlet purging flushing of the measurement chamber with gas e.g. N2 to remove radon. Suggested gas infeed pressure > 0.4 bar during the measurement. 16) Sample capacity - Vials : 5ml, 7ml and 20ml(mini vials such as Eppendorf tubes with adapters available. - The counter accommodates two tarys simultaneusly and tray formats can be mixed - Total vial capacity: 80 x 20 ml vials / 192 x 7ml vials

22) Count Rate : Up to 3,000,000 CPM, with MCA Resolution: 0.02 keV - 12.5 keV, unquenched conditions. H-3 ROI (18.6 keV) covered with 300 channels (0.062 keV/channel in average C-14 ROI (156 keV) covered with 550 channels (0.28 keV/channel in average 23) Chemi cpm value that can be used for automatic luminescence correction is measured for each sample. - Luminescence free counting mode for luminescence correction - Adjustable “protocol start time dealy” and adjustable ‘ measurement chamber delay“ to stabilize the smples fefore starting the measurement. 24) Performance Assessment - Using unquenched standard set, C-14/H-3/BG in 20ml vials. - OQ parameter and history log data provided. - Control with OQ history log can be included in all measurements.

2. Temperature Control Unit 6 pkg 1) For temperature stabilization of the samples and the detector down to max. 5 –10℃ below ambient temperature. 2) Adjustable target temperature with +/- 1℃ accuracy 3. External Standard Source 6 pkg 1) For low activity beta sample and for double labelled samples with variable quenching. 2) Fitting of external standard quench parameter(QPE) on standard curve 4. Alpha/Beta Separation Package 6 pkg 1) High resolution 3-dimensional alpha/beta separation electronics. B. Additional unit 1. System Control and Data Analysis Software 6 set 1) Conter can be operated using MS Windows user software 2) Protocol-files for measurement for most typical isotopes and applications are available at protocol library.

3) Analysis of data includes features such as automatic calculation of activity, normalization of results, background subtraction, precision, error of measurement, minimum detectable activity, analysis of kinetic data, analysis of dual- and triple label data, half-life correction, etc. Also sample identification with sample number, position in the rack and with user definable ID is facilitated. 4) User software enables also calibration of optimum a/b discriminator (PLI-curve) and energy regions (ROI) for your application. The feature includes Reprocessing of the data with new PLI -curve and ROIs after the measurement. Reprocessing function enables sample specific calibration of the PLI -curve and ROIs after the measurement without separate calibration or misclassification run.

5) Spectral analysis program incorporates the useful three dimensional alpha beta separation graph for validating alpha beta separation performance. 6) Dual or triple spectrum simultaneous display. 7) To reduce the noise and BKG value by adjusting the coincidence measurement time of the detector simultaneously in nanoseconds and optimize the measurement conditions of each sample. 8) Measured data can be printed out or exported in various formats e.g. to Excel. 9) This software is compatible with Windows 10 and 11. 10) Results data is saved automatically in the PC after completing the run. 11) A security copy of data is stored after measurement of each sample. 12) Data is stored in the counter during measurement and is retrievable even if connection to the PC is lost.

13) Spectra analysis and reprocessing of the data after the measurement. - User can choose to store and print out beta, beta triple, alpha, alpha triple, 3D, guard rejected, external std and external std triple spectra. - Allows viewing the spectra and recalculating the data in new ROIs and PLI -curve (with a/b separation) to optimize the counting windows after completing the measurement. - Live spectra during the measurement, including 3D - Previously measured data can be combined with existing one for reprocessing. 14) USB port allow communication with PC. 15) LAN port allow communication with network. 16) 21 CFR part 11 compliant Windows based software and compliant with IAEA Tritium Information Management System (TRIMS)

2. System Control PC System 6 sys 1) Windows 10 or 11 based PC 8GB RAM, 1TB SDD, 3 USB Port, 2 HDMI port 2) 24" LCD Monitor 3) Color Laser printer Ⅳ. 기타 조건(Remarks) 1. The installation and operation should be carried out by the bidder / supplier's responsibility at end user's site. 2. The vendor or technical support team shall visit within 48 hours the system installed site when urgent repairs needed or management problems happen. 3. One year warranty service should be provided by supplier after the date of installation. === 공급자증명서 양식 및 작성요령.hwp ===

공 급 자 증 명 서

From： (※ 해외공급자 명의) 발신: To： Public Procurement Service, The Republic of Korea 수신: 대한민국 조달청 Date : (※ 입찰참여일자 기재) 일자: