GB/T 16698-2008 English PDFUS$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 16698-2008: Measurement of emission rate of α particle Method for large area proportional counter Status: Valid GB/T 16698: Historical versions
Basic dataStandard ID: GB/T 16698-2008 (GB/T16698-2008)Description (Translated English): Measurement of emission rate of �� particle Method for large area proportional counter Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: F04 Classification of International Standard: 17.240 Word Count Estimation: 9,997 Date of Issue: 2008-09-19 Date of Implementation: 2009-08-01 Older Standard (superseded by this standard): GB/T 16698-1996 Quoted Standard: GB/T 4960.4, JJF 1059 Regulation (derived from): Announcement of Newly Approved National Standards No. 16 of 2008 (No. 129 overall) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the gas flow with a large area multi-wire proportional counter tube 2�� absolute measurement of �� particle emission rate of the principle, apparatus, method, and data processing. This standard applies to area of ??not more than 170mmX130mm, and a particle emission rate 1X10s-1 ~ 1X104s-1 (2�� sr) range �� plane source. This standard can also be used as �� particle emission rate measurement reference. GB/T 16698-2008: Measurement of emission rate of α particle Method for large area proportional counter---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. Measurement of emission rate of α particle Method for large area proportional counter ICS 17.240 F04 National Standards of People's Republic of China Replacing GB/T 16698-1996 Measuring α particle emission rate A large area proportional counter tube method Posted 2008-09-19 2009-08-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard replaces GB/T 16698-1996 "α particle emission rate measurement of a large area proportional counter tube method." This standard GB/T 16698-1996 main changes are as follows. a) the proportional counter tube by the 1996 version of the standard and size of 170mm × 120mm to 170mm × 130mm; b) delete the 1996 version of the standard in Chapter 4 on proportional tube working gas, pre-amplifier, high voltage power supply, the main amplifier, single channel pulse Analyzer dead time control circuit and a scaler content requirements; c) The 1996 version of the standard 5.3.1 f) items to be restated; d) Remove 1996 version of the standard in Appendix C. The Standard Annexes A and B are normative appendix. The standard proposed by China National Nuclear Corporation. This standard by the National Standardization Technical Committee of nuclear energy. This standard was drafted. China Institute of Atomic Energy isotopes. The main drafters of this standard. Yao Li-nung, Xiaojing, Zhang in, Qi Jie. This standard replaces the previous standard release case. GB/T 16698-1996. Measuring α particle emission rate A large area proportional counter tube method1 ScopeThis standard specifies the gas-flow with a large area multi-wire proportional counter 2π absolute measurement of α particle emission rate principle, means, methods and number Data processing and the like. This standard applies to an area no larger than 170mm × 130mm, and the α particle emission rate of 1 × 10s-1 ~ 1 × 104s-1 (2πsr) Fan Α plane around the source. This standard can also be used as β particle emission measurement reference.2 Normative referencesThe following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 4960.4 radionuclides in nuclear science and technology terms JJF1059 Evaluation and Expression of Uncertainty in Measurement3 Terms and DefinitionsGB/T terms and definitions as well as the following terms and JJF1059 established 4960.4 apply to this standard. 3.1 Surface emission rate is emitted per unit time source surface (or window) has an energy greater than a given number of certain particles. 3.2 A system for measuring large-area sources, in proportional area of \u200b\u200bgas ionization detector.4 FundamentalsLarge 2π multifilament windowless gas flow proportional counter tube (hereinafter referred to as proportional tube) is an anode by a plurality of parallel wires, can be measured Omo Plot α, β plane source particle emission rate is proportional counter tube, usually using gas-flow work, its intrinsic detection efficiency of α particles close 100%. When measuring the source into the proportional tube, α particles of the working gas ionization to produce positive and negative ions, after gas amplification, the anode may lose That is proportional to the particle energy electrical pulse which is amplified after the screening scalers record. Pulse count rate α particle and proportional control work After the relationship between voltage may form a plateau curves, count rate in the floor area of \u200b\u200ba point source of α, by the end of this dead time correction and small energy losses, you can Get tested source of surface emissivity α particles.5 Measurement SystemComposition 5.1 Measurement System Proportional system consists of pipes, the working gas, electronic equipment, working source and other components. 1 by proportional tube working gas, high voltage power supply, preamplifier Amplifier, main amplifier, single channel pulse analyzer dead time control circuit and a scaler and other electronic equipment components of the measurement system block diagram. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 16698-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 16698-2008_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 16698-2008?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 16698-2008 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. |
