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ISO/ASTM 51401:2013

(Main)

Practice for use of a dichromate dosimetry system

Practice for use of a dichromate dosimetry system

ISO/ASTM 51401:2013 covers the preparation, testing, and procedure for using the acidic aqueous silver dichromate dosimetry system to measure absorbed dose to water when exposed to ionizing radiation. The system consists of a dosimeter and appropriate analytical instrumentation. For simplicity, the system will be referred to as the dichromate system. The dichromate dosimeter is classified as a type I dosimeter on the basis of the effect of influence quantities. The dichromate system can be used as either a reference standard dosimetry system or a routine dosimetry system. ISO/ASTM 51401:2013 is one of a set of standards that provides recommendations for properly implementing dosimetry in radiation processing, and describes a means of achieving compliance with the requirements of ISO/ASTM Practice 52628 for the dichromate dosimetry system. It is intended to be read in conjunction with ISO/ASTM Practice 52628. ISO/ASTM 51401:2013 describes the spectrophotometric analysis procedures for the dichromate system. It applies only to gamma radiation, X-radiation/bremsstrahlung, and high energy electrons.

Pratique de l'utilisation d'un système dosimétrique au dichromate

General Information

Status
Published
Publication Date
04-Nov-2013
ICS
17.240 - Radiation measurements
Technical Committee
ISO/TC 85 - Nuclear energy, nuclear technologies, and radiological protection
Drafting Committee
ISO/TC 85 - Nuclear energy, nuclear technologies, and radiological protection
Current Stage
9020 - International Standard under periodical review
Start Date
15-Jan-2024
Completion Date
15-Jan-2024
Ref Project

Relations

Consolidated By
ISO 19014-3:2018 - Earth-moving machinery — Functional safety — Part 3: Environmental performance and test requirements of electronic and electrical components used in safety-related parts of the control system
Effective Date
06-Jun-2022
Revises
ISO/ASTM 51401:2003 - Practice for use of a dichromate dosimetry system
Effective Date
20-Oct-2012

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ISO/ASTM 51401:2013 - Practice for use of a dichromate dosimetry system
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INTERNATIONAL ISO/ASTM
STANDARD 51401
Third edition
2013-11-15
Practice for use of a dichromate dosim-
etry system
Pratique de l’utilisation d’un système dosimétrique au dichromate
Reference number
ISO/ASTM 51401:2013(E)
© ISO/ASTM International 2013

---------------------- Page: 1 ----------------------
ISO/ASTM 51401:2013(E)
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All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or
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Published in Switzerland
ii © ISO/ASTM International 2013 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/ASTM 51401:2013(E)
Contents Page
1 Scope. 1
2 Referenced documents. 1
3 Terminology. 2
4 Significance and use. 2
5 Effect of influence quantities. 2
6 Interferences . 2
7 Apparatus. 3
8 Reagents. 3
9 Preparation of dosimeters. 3
10 Calibration of the dosimetry system . 4
11 Application of dosimetry system . 5
12 Minimum documentation requirements. 6
13 Measurement uncertainty. 6
14 Keywords. 6
Figure 1
Relative response of dichromate dosimeter as a function of irradiation temperature.Afit of the data using Eq 1 yields
−5
fit parameters as follows: b = 1.021;b = −6.259 × 10 ;b = 1.806. 3
0 1 2
Figure 2
Responseofhigh-rangedosimeterintermsof∆A as a function of absorbed dose to water. A least-squares third order
−4 −2
polynomial fit (see Eq 4) of the data yields fit parameters as follows:b = 7.515 × 10 ;b = 1.745 × 10 ;
0 1
−6 −7
b = 3.485 × 10 ;b = −2.765 × 10 . 5
3
2
Figure 3
Responseofthelow-rangedosimeterintermsof∆A as a function o
...

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