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ISO 11929-4:2020
Determination of the characteristic limits (decision threshold, detection limit and limits of the coverage interval) for measurements of ionizing radiation — Fundamentals and application — Part 4: Guidelines to applications- 발행일 : 2020-09-15
- 발행기관 : ISO
상세정보
| 분야 | ISO/TC 85/SC 2 : Radiological protection |
|---|---|
| 적용범위 | This document specifies a procedure, in the field of ionizing radiation metrology, for the calculation of the "decision threshold", the "detection limit" and the "limits of the coverage interval" for a non‑negative ionizing radiation measurand when counting measurements with preselection of time or counts are carried out. The measurand results from a gross count rate and a background count rate as well as from further quantities on the basis of a model of the evaluation. In particular, the measurand can be the net count rate as the difference of the gross count rate and the background count rate, or the net activity of a sample. It can also be influenced by calibration of the measuring system, by sample treatment and by other factors. ISO 11929 has been divided into four parts covering elementary applications in ISO 11929-1, advanced applications on the basis of the ISO/IEC Guide 98-3:2008/Suppl.1 in ISO 11929-2, applications to unfolding methods in ISO 11929-3, and guidance to the application in ISO 11929-4. ISO 11929-1 covers basic applications of counting measurements frequently used in the field of ionizing radiation metrology. It is restricted to applications for which the uncertainties can be evaluated on the basis of the ISO/IEC Guide 98-3 (JCGM 2008). In ISO 11929-1:2019, Annex A the special case of repeated counting measurements with random influences and in ISO 11929-1:2019, Annex B, measurements with linear analogous ratemeters are covered. ISO 11929-2 extends ISO 11929-1 to the evaluation of measurement uncertainties according to the ISO/IEC Guide 98-3:2008/Suppl.1. ISO 11929-2 also presents some explanatory notes regarding general aspects of counting measurements and Bayesian statistics in measurements. ISO 11929-3 deals with the evaluation of measurements using unfolding methods and counting spectrometric multi-channel measurements if evaluated by unfolding methods, in particular, alpha- and gamma-spectrometric measurements. Further, it provides some advice how to deal with correlations and covariances. ISO 11929-4 gives guidance to the application of ISO 11929 (all parts), summarizing shortly the general procedure and then presenting a wide range of numerical examples. The examples cover elementary applications according to ISO 11929-1 and ISO 11929-2. The ISO 11929 (all parts) also applies analogously to other measurements of any kind if a similar model of the evaluation is involved. Further practical examples can be found in other International Standards, for example, see References [1 to 20]. |
| 국제분류(ICS)코드 | 17.240 : 방사능 측정 |
| 페이지수 | 97 |
| Edition | 2 |
이력정보
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ISO 11929-4:2022상세보기 | Determination of the characteristic limits (decision threshold, detection limit and limits of the coverage interval) for measurements of ionizing radiation — Fundamentals and application — Part 4: Guidelines to applications | 2022-07-18 | 표준 |
| 2 | ISO 11929-4:2020상세보기 | Determination of the characteristic limits (decision threshold, detection limit and limits of the coverage interval) for measurements of ionizing radiation — Fundamentals and application — Part 4: Guidelines to applications | 2020-09-15 | 구판 |
| 3 | ISO 11929-4:2001상세보기 | Determination of the detection limit and decision threshold for ionizing radiation measurements — Part 4: Fundamentals and application to measurements by use of linear-scale analogue ratemeters, without the influence of sample treatment | 2001-06-21 | 구판 |
관련상품
- ISO/DIS 11929-5 - Determination of the detection limit and decision threshold for ionizing radiation measurements — Part 5: Fundamentals and applications to counting measurements on filters during accumulation of radioactive material
- ISO 11929-6:2005 - Determination of the detection limit and decision threshold for ionizing radiation measurements — Part 6: Fundamentals and applications to measurements by use of transient mode
- ISO 11929-5:2005 - Determination of the detection limit and decision threshold for ionizing radiation measurements — Part 5: Fundamentals and applications to counting measurements on filters during accumulation of radioactive material
- ISO 11929-7:2005 - Determination of the detection limit and decision threshold for ionizing radiation measurements — Part 7: Fundamentals and general applications
- ISO 11929-8:2005 - Determination of the detection limit and decision threshold for ionizing radiation measurements — Part 8: Fundamentals and application to unfolding of spectrometric measurements without the influence of sample treatment
다른 사람이 함께 구입한 상품
- ISO 11929-1:2019 - Determination of the characteristic limits (decision threshold, detection limit and limits of the coverage interval) for measurements of ionizing radiation — Fundamentals and application — Part 1: Elementary applications
- ISO 11929-2:2019 - Determination of the characteristic limits (decision threshold, detection limit and limits of the coverage interval) for measurements of ionizing radiation — Fundamentals and application — Part 2: Advanced applications
- ISO 11929-3:2019 - Determination of the characteristic limits (decision threshold, detection limit and limits of the coverage interval) for measurements of ionizing radiation — Fundamentals and application — Part 3: Applications to unfolding methods
- IEC 61303:1994 - Medical electrical equipment - Radionuclide calibrators - Particular methods for describing performance
- IEC 60306-4:1971 - Measurement of photosensitive devices. Part 4: Methods of measurement for photo-multipliers
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