JJG 417-2006 English PDFJJG 417: Historical versions
Basic dataStandard ID: JJG 417-2006 (JJG417-2006)Description (Translated English): Verification Regulation of �� Ray Spectrometers Sector / Industry: Metrology & Measurement Industry Standard Classification of Chinese Standard: A58 Classification of International Standard: 17.240 Word Count Estimation: 15,125 Date of Issue: 2006-12-08 Date of Implementation: 2007-06-08 Older Standard (superseded by this standard): JJG 417-1986 Quoted Standard: AQSIQ Announcement No. 187 of 2006 Regulation (derived from): AQSIQ Announcement No. 187 of 2006 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine Summary: This standard applies to �� ??spectrometer initial verification, testing and use of follow-up inspection. �� �� spectrometer spectrometer including sodium iodide and semiconductor �� spectrometer. JJG 417-2006: Verification Regulation of γ Ray Spectrometers---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.Verification Regulation of γ Ray Spectrometers National Metrology Verification Regulations of the People's Republic Gamma spectrometer Released on December 12,.2006 Implemented on.2007-06-08 The General Administration of Quality Supervision, Inspection and Quarantine issued γ spectrometer verification procedure γRaySp Ectrometers Replacing JJG 417-1986 This regulation was approved by the General Administration of Quality Supervision, Inspection and Quarantine on December 8,.2006, and It will take effect on June 8,.2007. Focal Point. National Ionizing Radiation Measurement Technical Committee Main drafting unit. China Institute of Metrology Participated in the drafting unit. Radioactive Measurement Level Station of the Commission of Science, Technology and Industry for National Defense This regulation entrusts the National Ionizing Radiation Measurement Technical Committee to explain The main drafters of this procedure. Li Yanlu (China Institute of Metrology) Participate in the drafters. Qi Lijun (Development Committee of Radioactive Measurement of National Defense Science and Technology Commission) table of Contents1 Scope (1) 2 Citations (1) 3 terms (1) 4 Overview (2) 5 Metrological performance requirements (2) 5.1 Sodium Iodide gamma spectrometer (2) 5.2 Semiconductor gamma spectrometer (2) 6 General technical requirements (2) 6.1 Equipment label clear (2) 6.2 Adaptability of operation (3) 6.3 Sodium iodide [NaI(Tl)] detector (3) 6.4 Shielding room (3) 6.5 multi-channel pulse amplitude analyzer (3) 6.6 sample box (3) 6.7 Radioactive source bracket (3) 6.8 Supervision source (3) 7 Measuring instrument control (3) 7.1 Sodium Iodide gamma spectrometer (3) 7.2 Semiconductor gamma spectrometer (5) 7.3 Processing of verification results (6) 7.4 Verification cycle (7) Appendix A Example of Uncertainty Analysis of Semiconductor γ Spectrometer (8) Appendix B Verification Certificate and Verification Result Notice (inside page) format (10) γ spectrometer verification procedure1 ScopeThis procedure is applicable to the first verification, subsequent verification and in-use inspection of the gamma spectrometer. Gamma spectrometer includes sodium iodide gamma spectrum Instrument and semiconductor gamma spectrometer.2 CitationsGB 11743-1989 "Method for γ-spectrum analysis of radionuclides in soil" EJ/T 1091-1999 "Radioactive Nuclide Activity Measurement 锗γ Spectrometer Method" IEC 1452.1995 "Measurement and use of radionuclide gamma ray emissivity for nuclear instrumentation"3 terms3.1 [radioactive] activity activity At a given moment, a certain amount of radionuclide in a particular energy state occurs spontaneously at the dt time. The expected value dN is divided by dt. The activity symbol is A, A = dN/dt. The name of the activity unit is Beco [Ler], the symbol Bq, 1Bq = 1 s-1. 3.2 gamma ray emission probability gamma-rayemissionprobability The probability that radionuclide decay is accompanied by the emission of a specific energy gamma ray is usually expressed as a percentage. 3.3 gamma ray emissivity gamma-rayemissionrate A given radioactive sample (source) that emits a specific amount of gamma rays per unit time. Gamma ray The rate of incidence is equal to the activity multiplied by the probability of gamma ray emission. 3.4 background background A signal that is not caused by the physical quantity to be measured. In the gamma spectroscopy measurement, it means the sample other than the sample to be tested (radiation source) His factors include radioactivity and cosmic ray-induced peak-containing spectral data from the detector and its surroundings. 3.5 γ-ray full energy peak efficiency ful-energy-peakefficiencyforgamma-ray For a given sample (radiation source) - detector distance, the measured energy is the gamma ray full energy peak net area of E The ratio of the number of gamma rays emitted by the sample (radiation source) during the same time interval. 3.6 compliant plus coincidencesumming Two or more photons from the same nuclear decay are detected simultaneously, but only one observation pulse is produced. 3.7 pulse stacking pulsepile-up Overlapping of two successive pulses that are closely related in time but from independent decay. Measuring system usually put These two input events are treated as a combined pulse and stored in a different energy than the two component pulse sites. In the spectral address. Pulse stacking is a function of the square of the count rate and the pulse width of the amplifier. 3.8 half height and width fulwidthathalfmaximum In the pulse height spectrum, the distance between the abscissas of two points at half the peak of a single peak. Half height and width are also recorded FWHM. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of JJG 417-2006_English be delivered?Answer: Upon your order, we will start to translate JJG 417-2006_English as soon as possible, and keep you informed of the progress. The lead time is typically in 9 seconds (download/delivered in 9 seconds). The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of JJG 417-2006_English with my colleagues?Answer: Yes. 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Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 417-2006 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |