1、 American National Standard Performance Criteria for Backpack- Based Radiation-Detection Systems Used for Homeland Security Sponsored by the National Committee on Radiation Instrumentation, N42 IEEE 3 Park Avenue New York, NY 10016-5997 USA Accredited by the American National Standards Institute ANS
2、I N42.53-2013 ANSI N42.53-2013 American National Standard Performance Criteria for Backpack-Based Radiation-Detection Systems Used for Homeland Security Sponsor National Committee on Radiation Instrumentation, N42 Accredited by the American National Standards Institute Secretariat Institute of Elect
3、rical and Electronics Engineers, Inc. Approved 4 June 2013 American National Standards Institute Abstract: The operational and performance requirements for backpack-based radiation-detection systems (BRDs) used in homeland security applications are specified in this standard. BRDs are typically worn
4、 by the user during operation to detect and possibly identify radiological and nuclear material. Keywords: ANSI N42.53, backpack-based radiation-detection systems The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright 2013 by The Institute o
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24、yright 2013 IEEE. All rights reserved. vii Participants At the time it approved this standard, the Accredited Standards Committee on Radiation Instrumentation, N42, had the following members: Michael P. Unterweger, Chair Michael Kipness, Administrative secretary Organization represented Name of repr
25、esentative Canberra Robert Huckins Commerce Dept, U.S. NIST . Leticia Pibida Computer Dependability Associates, LLC . Gary Johnson Consultant Frank X. Masse Department of Homeland SecurityPeter Shebell Harvard University Joseph Ring Health Physics Society Sandy Perle Institute of Electrical & Electr
26、onics Engineers, Inc. . Michael P. Unterweger International Medcom . Don Sythe Lawrence Berkeley National Laboratory .Edward J. Lampo Lawrence Livermore National Laboratory . Dave Trombino NASA, GSFC R. Sachidananda Babu Nuclear Standards Unlimited . Al N. Tschaeche (Deceased) Oak Ridge National Lab
27、oratory Peter J. Chiaro, Jr Charles Britton (Alt.) Ortec Corp. . Frank Sergent Pacific Northwest National Laboratory Richard Kouzes U. S. Army . Chad B. McKee U. S. Nuclear Regulatory Commission Cynthia G. Jones Members-At-Large . Morgan Cox Edward Groeber Ronald M. Keyser Joseph C. McDonald Jack M.
28、 Selby (Deceased) Joseph Stencel At the time this standard was approved, the Subcommittee N42.HSI had the following membership: Michael P. Unterweger, Co-chair Morgan Cox, Co-chair Peter J. Chairo, Jr. David Gilliam Mark Hoover Cynthia G. Jones Ronald Keyser Joseph C. McDonald Leticia Pibida Peter S
29、hebell David Trombino Copyright 2013 IEEE. All rights reserved. viii At the time this standard was approved, ANSI N42.53 Working Group had the following membership: Peter J. Chiaro, Chair Carl Czajkowski Karin Decker Gerard Garino Achim Kreuels Daniel Masi Mikhail Mayorov Steve Mettler Chris Oertel
30、Martin Ohmes Richard Oxford Leticia Pibida Ed Roberts Richard Schueneman Francis Schulcz Keith Spero Adrian Stoian Dave Trombino Steve Tymoszuk Copyright 2013 IEEE. All rights reserved. ix Introduction This introduction is not part of ANSI N42.53-2013, American National Standard Performance Criteria
31、 for Backpack-Based Radiation-Detection Systems Used for Homeland Security. This standard is the responsibility of the Accredited American Standards Committee on Radiation Instrumentation, N42. The standard was approved on N42 letter ballot. Copyright 2013 IEEE. All rights reserved. x Contents 1. Ov
32、erview 1 1.1 Scope . 1 1.2 Purpose 2 2. Normative references 2 3. Definitions, acronyms, and abbreviations 3 3.1 Definitions . 3 3.2 Acronyms and abbreviations . 5 4. General considerations . 6 4.1 BRD evaluation . 6 4.2 Maintaining performance . 6 4.3 Units and uncertainties 6 4.4 Special word usag
33、e 6 4.5 Standard test conditions . 6 4.6 Tests performed under standard test conditions . 7 4.7 Tests performed with variation of influence quantities . 7 4.8 Statistical fluctuations 7 5. Design requirements . 8 5.1 General characteristics . 8 5.2 Physical configuration . 8 5.3 Data storage and com
34、munication interface 9 5.4 Markings .10 5.5 Power supply 10 5.6 Protection of switches .11 5.7 Energy and response range .12 5.8 User interface 12 5.9 Operating parameters 14 5.10 Explosive atmospheres .14 5.11 Diagnostics .14 6. Radiological tests.15 6.1 General .15 6.2 False alarm test .17 6.3 Det
35、ector response to gamma radiation 18 6.4 Detector response to neutron radiation, when provided .19 6.5 Gamma-ray exposure rate indication, when available 19 6.6 Personal protection alarm and response time 20 6.7 Angular dependence and verification of directional indication 20 6.8 Over-range test .20
36、 6.9 Neutron indication in the presence of photons .21 6.10 Detection of gradually increasing radiation levels 21 6.11 Networked area monitors, if applicable 22 6.12 Radionuclide identification, when provided .23 6.13 Natural background variation .27 Copyright 2013 IEEE. All rights reserved. xi 7. E
37、nvironmental performance requirements 28 7.1 Ambient temperature 28 7.2 Relative humidity .29 7.3 Moisture and dust protection 30 7.4 Maritime environment, if required 32 7.5 Extreme temperature start up 33 8. Electrical and electromagnetic performance requirements 35 8.1 Radio frequency (RF) .35 8.
38、2 Radiated emissions .36 8.3 Magnetic field .36 8.4 Electrostatic discharge (ESD) .37 9. Mechanical performance requirements 38 9.1 Vibration .38 9.2 Mechanical shock and drop 40 9.3 Impact (microphonics) 41 10. Documentation 42 10.1 Type test report .42 10.2 Certification 42 10.3 Operation and main
39、tenance manual 42 Annex A (normative) Summary of fluence rate (or flux density) calculations 44 Annex B (normative) Guidance regarding identification performance .46 B.1 Complete & Correct .46 B.2 Incomplete .46 B.3 Incorrect .46 B.4 Incomplete & Incorrect 47 Annex C (informative) Bibliography.48 Co
40、pyright 2013 IEEE. All rights reserved. 1 American National Standard Performance Criteria for Backpack-Based Radiation-Detection Systems Used for Homeland Security IMPORTANT NOTICE: IEEE Standards documents are not intended to ensure safety, health, or environmental protection, or ensure against int
41、erference with or from other devices or networks. Implementers of IEEE Standards documents are responsible for determining and complying with all appropriate safety, security, environmental, health, and interference protection practices and all applicable laws and regulations. This IEEE document is
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43、ed on request from IEEE or viewed at http:/standards.ieee.org/IPR/disclaimers.html. 1. Overview 1.1 Scope This standard specifies the basic performance requirements for backpack-based radiation-detection systems (BRDs) used in homeland security applications. BRDs shall detect gamma radiation and may
44、 include neutron detection and/or the identification of gamma-ray emitting radionuclides. They are typically worn by the user during operation but may also be used as temporary area monitors. This standard establishes the radiological performance and testing requirements and those requirements assoc
45、iated with the expected electrical, mechanical, and environmental conditions while in use. ANSI N42.53-2013 American National Standard Performance Criteria for Backpack-Based Radiation-Detection Systems Used for Homeland Security Copyright 2013 IEEE. All rights reserved. 2 1.2 Purpose This standard
46、specifies the performance criteria and test methodologies for BRDs that are used to detect gamma-ray emitting radioactive material, detect neutron emitting radioactive material, and/or identify radionuclides. Successful completion of the radiation tests described in this standard should not be const
47、rued as an ability to successfully detect gamma radiation, detect neutron radiation, and/or identify radionuclides in all environments. 2. Normative references The following referenced documents are indispensable for the application of this document (i.e., they must be understood and used, so each r
48、eferenced document is cited in text and its relationship to this document is explained). For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments or corrigenda) applies. ANSI/HPS N13.11, Personnel Dosimetry
49、PerformanceCriteria for Testing.1ANSI N42.42, American National Standard Data Format for Radiation Detectors Used for Homeland Security. Brookhaven National Laboratories, Evaluated Nuclear Structure Data File (ENSDF).2IEC 60068-2-27, Environmental TestingPart 2-27: TestsTest Ea and Guidance: Shock. IEC 60068-2-64, Environmental TestingPart 2-64: TestsTest Fh: Vibration, Broadband Random and Guidance. IEC 60068-2-75, Environmental TestingPart 2-75: TestsTest Eh: Hammer Tests. IEC 60529, Degrees of Protection Provided by Enclosures (IP Code). IEC 61000-4-2, Elect
