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Methods of performance measurement for solid scintillators
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GB/T 13181-2024
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GB/T 13181-2002 | English | 1359 |
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Measurement methods of scintillator characteristics
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GB/T 13181-1991 | English | 719 |
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Thallium-activated sodium iodide scintillator
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Basic data Standard ID | GB/T 13181-2024 (GB/T13181-2024) | Description (Translated English) | Methods of performance measurement for solid scintillators | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | F80 | Classification of International Standard | 27.120.01 | Word Count Estimation | 54,542 | Date of Issue | 2024-05-28 | Date of Implementation | 2024-12-01 | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 13181-2024: Methods of performance measurement for solid scintillators---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.
ICS 27:120:01
CCSF80
National Standards of People's Republic of China
Replace GB/T 13181-2002
Solid scintillator performance measurement method
Released on 2024-05-28
2024-12-01 implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface V
1 Scope 1
2 Normative references 1
3 Terms, definitions and abbreviations 1
3:1 Terms and Definitions 1
3:2 Abbreviations 4
4 General Principles 5
4:1 Measurement environment conditions 5
4:2 Measurement system 5
4:3 Measurement requirements 6
4:4 Safety requirements 7
5 Relative light output 7
5:1 Pulse method (total absorption peak method or Compton distribution edge method) 7
5:2 Current method 8
5:3 Light output of packaged scintillators 9
5:4 Light output non-uniformity 9
6 Relative energy conversion efficiency 13
6:1 Pulse method (total absorption peak method or Compton distribution edge method) 13
6:2 Current method 13
7 α-β ratio 14
7:1 Measurement principle 14
7:2 Measuring device 14
7:3 Measurement steps 14
7:4 Data Processing 14
8 Intrinsic pulse amplitude resolution 15
8:1 Measurement principle 15
8:2 Measuring device 15
8:3 Measurement steps 15
8:4 Data Processing 16
8:5 Intrinsic pulse amplitude resolution of packaged scintillators 16
9 Flashing light attenuation length 16
9:1 Requirements for the scintillator to be tested 16
9:2 Measurement Principle 16
9:3 Measuring device 17
9:4 Pulse method 17
9:5 Current method 17
9:6 Other Notes 18
10 Emission spectrum 18
10:1 Measurement wavelength range 18
10:2 Measurement Principle 18
10:3 Measuring device 18
10:4 Measurement steps 19
10:5 Data Processing 20
10:6 Other measurement methods 20
11 Time characteristics 20
11:1 Flicker decay time 20
11:2 Afterglow 24
11:3 Compliance resolution time 25
12 Radiation hardness 27
12:1 Measurement Principle 27
12:2 Measuring device 27
12:3 Measurement steps 27
12:4 Data Processing 27
13 Own radioactivity level 28
13:1 Measurement Principle 28
13:2 Measuring device 28
13:3 Measurement steps 29
13:4 Data Processing 29
14 β-γ ratio and n-γ ratio 29
14:1 β-γ ratio 29
14:2 n-γ ratio 30
15 Temperature Effect 31
15:1 Measurement Principle 31
15:2 Measuring device 31
15:3 Measurement methods 32
16 Scintillator array inhomogeneity and optical crosstalk 33
16:1 Inhomogeneity of Scintillator Arrays 33
16:2 Optical Crosstalk in Scintillator Arrays 34
Appendix A (Informative) Main Characteristics of Radioisotope Sources 36
Appendix B (Informative) Dimensions of Scintillator Standard Samples 37
Appendix C (Informative) Nonlinearity of the Pulse Method Measurement System 39
Appendix D (Informative) Nonlinearity of the current measurement system 42
Appendix E (Informative) Instability of measurement systems 44
Reference 45
Foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents"
Drafting:
This document replaces GB/T 13181-2002 "Scintillator performance measurement method": Compared with GB/T 13181-2002, in addition to the structural adjustment
Besides the editorial changes, the main technical changes are as follows:
a) The scope of application of the standard has been changed (see Chapter 1, Chapter 1 of the:2002 edition):
b) Added “scintillation” (see 3:1:1), “packaged scintillator” (see 3:1:6), “light output non-uniformity” (see 3:1:11), “α-β ratio” (see
3:1:13), "afterglow" (see 3:1:15), "conformity resolution time" (see 3:1:16), "irradiation hardness" (see 3:1:21), "self-radioactivity
level” (see 3:1:22), “detector efficiency” (see 3:1:23), “β-γ ratio” (see 3:1:24), “n-γ ratio” (see 3:1:25), scintillator
Array (see 3:1:27), "non-uniformity of scintillator array" (see 3:1:28), "optical crosstalk of scintillator array" (see 3:1:29), etc:
Terms and definitions:
c) The standard test conditions for AC power supply voltage and AC power supply frequency have been changed (see 4:1, 4:1 of the:2002 edition):
d) The requirements for scintillator standard samples were changed, and "comply with the relevant provisions of GB/T 4077" was deleted:
The requirements for sample size are added as a new informative annex (see 4:2:3 and Appendix B, 4:2:3 of the:2002 edition):
e) The requirements for “instability of the measurement system” have been changed (see 4:2:6:2, 4:2:6:3 and 5:1:2:3 of the:2002 edition):
f) Added the description of the number of repetitions of physical quantity measurement (see 4:3:9):
g) The calculation formula for “relative light output” has been changed (see 5:1:4, 5:1:4 of the:2002 edition):
h) Deleted the content on measurement error in data processing of the "Relative Light Output" and "Relative Energy Conversion Efficiency" measurement methods
(See 5:1:4, 5:2:4 and 6:4:2 of the:2002 edition):
i) Added the measurement method for “light output of packaged scintillator” (see 5:3):
j) Added the measurement method for “light output non-uniformity” (see 5:4):
k) Added the pulse method measurement method for “relative energy conversion efficiency” (see 6:1):
l) Deleted the requirement to make corrections when the emission spectra of the scintillator to be measured and the standard sample are different in the measurement method of “relative energy conversion efficiency”
(see 6:4:2 and Appendix D of the:2002 edition):
m) Added the measurement method of “α-β ratio” (see Chapter 7):
n) The data processing method of “intrinsic pulse amplitude resolution” has been changed (see 8:4, 7:4 of the:2002 edition):
o) Added the measurement method for “intrinsic pulse amplitude resolution of packaged scintillator” (see 8:5):
p) Changed the measurement method of “flicker light attenuation length” (see Chapter 9, Chapter 8 of the:2002 edition); added the pulse method measurement method
The method of data processing has been changed (see 9:5:2, 8:1:5 of the:2002 edition):
q) The measurement method of "flicker decay time" has been changed (see Chapter 10 of 11:1,:2002 edition), and the "direct oscillographic method" has been added to
The requirements for the photomultiplier tube (PMT) (see 11:1:2:2:3) and the content of deducting the response time of the photomultiplier tube (see:2002
10:2:4 of the:2002 edition); deleted “average waveform sampling oscillometric method” (see 10:1:1 and 10:3 of the:2002 edition):
r) Added the measurement method of “afterglow” (see 11:2):
s) Added the measurement method of “compliance resolution time” (see 11:3):
t) Added the measurement method of “irradiation hardness” (see Chapter 12):
u) Added the measurement method of “self-radioactivity level” (see Chapter 13):
v) Added the measurement methods of “β-γ ratio” and “n-γ ratio” (see Chapter 14):
w) Added the measurement methods of “Scintillator array non-uniformity” and “Scintillator array optical crosstalk” (see Chapter 16):
Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents:
This document was proposed and coordinated by the National Technical Committee for Standardization of Nuclear Instruments (SAC/TC30):
This document was drafted by: Beijing Hamamatsu Photonics Technology Co:, Ltd:, China National Nuclear Corporation Automatic Instrument System Engineering Co:, Ltd:, China National Nuclear Corporation (Beijing) Nuclear Instrument
Equipment Co:, Ltd: and China Nuclear Control Systems Engineering Co:, Ltd:
The main drafters of this document are: Yuan Xiuli, Yao Suilao, Wang Danni, Yan Zhende, Tang Zhaorong, Jiang Lijun, Gao Xingbing, Yin Shenghua, Jia Jingguang,
Zhang Zhixiong and Lin Deyu:
The previous versions of this document and the documents it replaces are as follows:
---First published in:1991 and first revised in:2002;
---This is the second revision:
Solid scintillator performance measurement method
1 Scope
This document describes the relative light output, relative energy conversion efficiency, alpha-beta ratio, intrinsic pulse amplitude resolution, scintillation light attenuation of the scintillator:
length, emission spectrum, time characteristics, irradiation hardness, intrinsic radioactivity level, β-γ ratio and n-γ ratio, temperature effect, non-uniformity of scintillator array
Measurement methods for optical crosstalk, etc:
This document applies to the performance measurements of commonly used solid scintillators:
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document:
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document:
GB 4075 General requirements and classification of sealed radioactive sources
GB/T 10257-2001 Quality inspection rules for nuclear instruments and nuclear radiation detectors
GB 18871 Basic Standard for Ionizing Radiation Protection and Radiation Source Safety
GB/T 28544 Measurement method for light output and intrinsic resolution of packaged scintillators
3 Terms, definitions and abbreviations
3:1 Terms and Definitions
The following terms and definitions apply to this document:
3:1:1
Scintilation
A flash of light lasting a few microseconds or less, caused by molecular deexcitation:
[Source: GB/T 4960:6-2008, 2:3:1]
3:1:2
Scintillating material
A substance that can emit light radiation in a flashing manner under the action of ionizing radiation:
[Source: GB/T 4960:6-2008, 2:3:7]
3:1:3
Scintillator
A scintillation detection element of appropriate shape is made from a certain amount of scintillation material:
[Source: GB/T 4960:6-2008, 2:3:10]
3:1:4
[Scintillator] entrance window [ofascintilator]
The part of a scintillator that allows the ionizing radiation being measured to pass easily:
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