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BS EN ISO 4037-4:2021

BS EN ISO 4037-4:2021

$142.49

Radiological protection. X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy – Calibration of area and personal dosemeters in low energy X reference radiation fields

Published By Publication Date Number of Pages
BSI 2021 28
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This document gives guidelines on additional aspects of the characterization of low energy photon radiations and on the procedures for calibration and determination of the response of area and personal dose(rate)meters as a function of photon energy and angle of incidence. This document concentrates on the accurate determination of conversion coefficients from air kerma to Hp(10), H*(10), Hp(3) and H’(3) and for the spectra of low energy photon radiations. As an alternative to the use of conversion coefficients the direct calibration in terms of these quantities by means of appropriate reference instruments is described.

PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Symbols (and abbreviated terms)
11 5 General procedures for calibrating and determining response
6 Characterisation and production of low energy X-ray reference radiations
6.1 General
12 6.2 Tube potential
6.3 Spectral fluence and conversion coefficients
7 Dosimetry of low energy reference radiations
7.1 General
7.2 Stability check facility
8 Calibration and determination of the response as a function of photon energy and angle of radiation incidence
8.1 General
13 8.2 Selection of calibration method
8.3 Calibration by using reference instruments for Ka
8.3.1 General
8.3.2 Conventional quantity value of the air kerma
14 8.3.3 Conventional quantity value of the dose equivalent quantities Hp(0,07) and H'(0,07)
8.3.4 Conventional quantity value of the dose equivalent quantities Hp(10) or H*(10) and Hp(3) or H'(3)
16 8.3.5 Performing the calibration
8.4 Calibration by using reference instruments which measure the ICRU dose equivalent quantities
8.4.1 General
17 8.4.2 Conventional quantity value of the dose equivalent quantities Hp(10) or H*(10) and Hp(3) or H'(3)
18 8.4.3 Performing the calibration
19 8.5 Statement of uncertainty
20 Annex A (normative) Correction for air density
26 Bibliography

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BS EN ISO 4037-4:2021
$142.49