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JJG 852-2019 English PDF

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JJG 852-2019: Neutron Ambient Dose Equivalent (Rate) Meters
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JJG 852: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJG 852-2019English509 Add to Cart 5 days [Need to translate] Neutron Ambient Dose Equivalent (Rate) Meters Valid JJG 852-2019
JJG 852-2006English879 Add to Cart 4 days [Need to translate] Verification Regulation of Neutron Ambient Dose Equivalent (Rate) meters Obsolete JJG 852-2006
JJG 852-1993English359 Add to Cart 3 days [Need to translate] Verification Regulation of Neutron Ambient Dose Equivalent Meter Obsolete JJG 852-1993

PDF similar to JJG 852-2019


Standard similar to JJG 852-2019

GB/T 3222.1   JJG 188   JJF 1396   JJG 377   JJG 393   JJG 853   

Basic data

Standard ID JJG 852-2019 (JJG852-2019)
Description (Translated English) Neutron Ambient Dose Equivalent (Rate) Meters
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A58
Classification of International Standard 17.240
Word Count Estimation 22,254
Date of Issue 2019
Date of Implementation 2020-03-27
Issuing agency(ies) State Administration for Market Regulation

JJG 852-2019: Neutron Ambient Dose Equivalent (Rate) Meters

---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.
Neutron Ambient Dose Equivalent (Rate) Meters National Measurement Verification Regulations of the People's Republic of China Neutron dose equivalent (rate) meter 2019-09-27 release 2020-03-27 Implementation Issued by the State Administration of Market Supervision and Administration Neutron dose equivalent (rate) meter Verification regulations Replace JJG 852-2006 Centralized unit. National Technical Committee on Ionizing Radiation Measurement Drafting unit. National Defense Science and Technology Industry Ionizing Radiation First Metering Station Chinese Academy of Metrology The National Commission for Ionizing Radiation Measurement Technical Commission is responsible for interpretation Drafters of this regulation. Liu Yina (First Class Ionizing Radiation Station of National Defense Science and Technology Industry) Zhiqiang Wang (Class I metering station for national defense science and technology industry) Hui Zhang (Chinese Academy of Metrology) Luo Hailong (First Class Ionizing Radiation Station of National Defense Technology Industry)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2 References (1) 3 Terms and units of measurement (1) 4 Overview (3) 5 Measurement performance requirements (3) 6 General technical requirements (3) 7 Control of measuring instruments (4) Appendix A Measurement points of energy response and conversion factor of neutron fluence to surrounding dose equivalent (9) Appendix B The structure and use method of shadow cone (10) Appendix C Radiation field space requirements (11) Appendix D Scattered Neutron Measurement Method (12) Appendix E Measurement Methods of Neutron Source Anisotropy Correction Factor (14) Appendix F Air attenuation correction factor (16) Appendix G. Information on the inside pages of the certification certificate/certification result notice and recommended format (17)

Introduction

This regulation is a revision of JJG 852-2006.This revision mainly refers to JJF1001-2011 Volume Terms and Definitions ", IEC 61005..2014" Radiation Protection Instruments Dose Equivalent (Rate) Apparatus around Neutrons "[Ra- GB/T 14318-2019 "Radiation protection instruments around dose neutron dose equivalent (rate) instrument" and other standards and specifications. Compared with JJG 852-2006, except for editorial changes, the main technical changes are as follows. --- Raised the upper limit of the neutron energy measurement range; --- More clearly stipulated the determination of relative inherent error; --- According to the energy range, the energy response is required. The release of previous versions of this regulation. --- JJG 852-2006; --- JJG 852-1993. Verification Regulation of Dose Equivalent (Rate) Apparatus around Neutron

1 Scope

This regulation is applicable to the first dose equivalent (rate) instrument for measuring neutrons with an energy range of thermal energy point ~ 20MeV Secondary verification, follow-up verification and inspection in use. This regulation is not applicable to the verification of the dose equivalent (rate) instrument around the neutron used to monitor the pulsed neutron field.

2 Reference documents

This regulation refers to the following documents. JJF1001-2011 General Measurement Terms and Definitions GB/T 4960.1-2010 Nuclear Science and Technology Terms Part 1.Nuclear Physics and Nuclear Chemistry GB/T 4960.6-2008 Nuclear science and technology terminology Part 6.Nuclear instrumentation GB/T 12162.1-2000 X and γ parameters for calibrating dosimeters and dose rate meters and determining their energy response Examination of radiation Part 1.Radiation characteristics and production methods GB/T 14055.1-2008/ISO 8529-1..2001 Neutron reference radiation Part 1.Radiation characteristics and Generation method GB/T 14055.2-2012/ISO 8529-2..2000 Neutron Reference Radiation Part 2.Characterization Radiation Of calibration of radiation protection instruments related to basic field quantities ISO 8529-3..1998 Neutron Reference Radiation Part 3.Calibration and Personal Meter Calibration Determination of its energy and angular response (Referenceneutronradiations-Part 3.Calibrationofareaand personaldosimetersanddeterminationoftheirresponseasafunctionofneutronenergy andangleofincidence) ISO 12789-1..2008 Reference radiation field simulation workplace neutron field Part 1.Radiation characteristics and Generation method (Referenceradiationfields-Simulatedworkplaceneutronfields-Part 1. Characteristicsandmethodsofproduction) ISO 12789-2..2008 Reference radiation field simulating workplace neutron field Part 2.Comparing with basic quantities Related calibration basics (Referenceradiationfields-Simulatedworkplaceneutronfields-Part 2. Calibrationfundamentalsrelatedtothebasicquantities) For dated references, only the dated versions are applicable to this Regulation; for those without dates The latest version (including all amendments) is applicable to this regulation.

3 Terms and units of measurement

3.1 Terminology JJF1001-2011, GB/T 4960.1-2010, GB/T 4960.6-2008 and the following terms and The definition applies to this regulation. 3.1.1 Reference pointofanassembly

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