1、ANSI N42.38-2006American National StandardPerformance Criteria for Spectroscopy-Based Portal Monitors Usedfor Homeland SecurityI E E E3 Park Avenue New York, NY 10016-5997, USA22 January 2007Accredited by the American National Standards InstituteSponsored by theNational Committee on Radiation Instru
2、mentation, N42Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under li
3、cense with IEEENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI N42.38-2006 American National Standard Performance Criteria for Spectroscopy-Based Portal Monitors Used for Homeland Security Sponsor National Committee on Radiation Instrumentation, N42 Accredited
4、 by the American National Standards Institute Secretariat Institute of Electrical and Electronics Engineers, Inc. Approved 28 August 2006 American National Standards Institute Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEENot for ResaleN
5、o reproduction or networking permitted without license from IHS-,-,-Abstract: The performance requirements for radionuclide identifying portal monitors, also referred to as spectroscopic portal monitors, are described in this standard. The requirements stated are based on monitors used in support of
6、 efforts associated with the U.S. Department of Homeland Security. Keywords: gamma spectroscopy, homeland security, instrument test, portal monitors, radiation detectors, radionuclide identification _ The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997,
7、 USA Copyright 2007 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 22 January 2007. Printed in the United States of America. IEEE is a registered trademark in the U.S. Patent +1-978-750-8400. Permission to photocopy portions of any individual standard f
8、or educational classroom use can also be obtained through the Copyright Clearance Center. Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Introduction This
9、introduction is not part of ANSI N42.38-2006, American National Standard Performance Criteria for Spectroscopy-Based Portal Monitors Used for Homeland Security. This standard is the responsibility of the Accredited American Standards Committee on Radiation Instrumentation, N42. The standard was appr
10、oved by the N42 letter ballot of JulyAugust 2006. Notice to users Errata Errata, if any, for this and all other standards can be accessed at the following URL: http:/ standards.ieee.org/reading/ieee/updates/errata/index.html. Users are encouraged to check this URL for errata periodically. Interpreta
11、tions Current interpretations can be accessed at the following URL: http:/standards.ieee.org/reading/ieee/interp/ index.html. Patents Attention is called to the possibility that implementation of this standard may require use of subject matter covered by patent rights. By publication of this standar
12、d, no position is taken with respect to the existence or validity of any patent rights in connection therewith. The IEEE shall not be responsible for identifying patents or patent applications for which a license may be required to implement an IEEE standard or for conducting inquiries into the lega
13、l validity or scope of those patents that are brought to its attention. v Copyright 2007 IEEE. All rights reserved. Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEENot for ResaleNo reproduction or networking permitted without license from
14、IHS-,-,-Participants At the time it approved this standard, the Accredited Standards Committee on Radiation Instrumentation, N42, had the following membership: Michael P. Unterweger, Chair Morgan Cox, Deputy Chair William Ash, Administrative Secretary Organization Represented.Name of Representative
15、Bartlett Services .Morgan Cox Canberra Markku Koskelo Chew, M.H .Jack M. Selby Commerce Dept, U.S. NIST .Michael Unterweger Louis Costrell (Alt.) Consultant Frank X. Masse Department of Homeland Security .Peter Shebell Entergy-ANO .Ron Schwartz Health Physics Society .Sandy Perle IEEE Louis Costrell
16、 .Julian Forster (Alt.) .Anthony Spurgin (Alt.) .Michael Unterweger (Alt.) International Medcom Don Sythe Lawrence Berkeley National Lab .Edward J. Lampo Lawrence Livermore National Lab .Gary Johnson NASA, GSFC .Sachidananda R. Babu Nuclear Regulatory Commission Cynthia Jones Nuclear Stds Unlimited
17、Al N. Tschaeche ORNL Peter J. Chiaro, Jr. .Charles Britton (Alt.) ORTEC Ronald M. Keyser Pacific NW Labs .Richard Kouzes Swinth Associates .Kenneth L. Swinth U.S. Army Edward Groeber Members-At-Large .Ernesto Corte .Joseph C. McDonald .Paul L. Phelps .Joseph Stencel Lee J. Wagner vi Copyright 2007 I
18、EEE. All rights reserved. Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-At the time this standard was approved, Subcommittee N42.HSI had the following mem
19、bership: Michael P. Unterweger, Co-Chair Morgan Cox, Co-Chair Paul Bailey Peter J. Chiaro, Jr. David Gilliam Mark Hoover Cynthia G. Jones Ronald Keyser Richard Kouzes Joseph C. McDonald Leticia Pibida Brain Rees Peter Shebell David Trombino At the time this standard was approved, the ANSI 42.38 Work
20、ing Group had the following members: Peter J. Chiaro, Jr., Chair and Project Leader Carl Czajkowski Chuck Finfrock Jens Hovgaard Adam Hutter Cynthia Jones Ron Keyser Dick Kouzes George Lasche Dean Mitchell Richard Oxford Leticia Pibida Alan Proctor Brian Rees Dave Trombino Michael P. Unterweger vii
21、Copyright 2007 IEEE. All rights reserved. Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Contents 1. Overview 1 1.1 Scope . 1 1.2 Purpose 1 1.3 General 2 2
22、. Normative references 2 3. Definitions 4 3.1 General definitions 4 3.2 Definitions of particular relevance to ANSI N42.38 . 8 4. General considerations . 9 4.1 Standard test conditions. 9 4.2 Units and uncertainties 9 4.3 Special word usage 10 5. Design requirements. 10 5.1 General characteristics.
23、 10 5.2 Physical configuration . 12 5.3 Spectral identification 13 5.4 Indication features . 14 5.5 Occupancy and speed sensors for vehicle monitors. 14 5.6 Markings 14 5.7 Power supply . 14 5.8 Battery life-time. 15 5.9 Protection of switches 15 5.10 Effective range of measurement 15 5.11 Software
24、and data analysis. 16 6. Radiation detection and indication performance requirements. 17 6.1 Reference gamma-ray radiation. 18 6.2 False alarms . 19 6.3 Response to gamma radiation 19 6.4 Response to neutron radiation . 20 6.5 Over-range. 20 6.6 Neutron indication in the presence of photons 21 6.7 B
25、ackground effects 21 6.8 Radionuclide identification 21 6.9 Determination of full-energy-peak efficiency . 27 6.10 Determination of full width-half maximum (FWHM). 27 viii Copyright 2007 IEEE. All rights reserved. Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS
26、under license with IEEENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-7. Environmental performance requirements . 28 7.1 Ambient temperature . 28 7.2 Relative humidity 29 7.3 Moisture and dust protection . 30 8. Electromagnetic performance requirements . 31 8.1 El
27、ectrostatic discharge (ESD) 31 8.2 Radio frequency (RF) susceptibility 31 8.3 Radiated emissions 32 8.4 Conducted disturbances induced by bursts and radio frequencies. 32 8.5 Magnetic fields 33 8.6 Surges and oscillatory waves. 33 9. Mechanical performance requirements. 34 9.1 Vibration 34 9.2 Micro
28、phonics/impact . 34 10. Documentation . 35 10.1 Type test report 35 10.2 Report 35 10.3 Operation and maintenance manual. 36 Annex A (informative) Bibliography . 37 A.1 General 37 A.2 Detectors. 37 A.3 Detection and identification instruments 38 A.4 Radiological protection instruments . 38 A.5 EMC 3
29、8 A.6 Units, quantities, and calibrations. 39 A.7 Security monitors 39 Annex B (informative) Diagram of mounting dimensions for radionuclide identifying portal monitors. 40 ix Copyright 2007 IEEE. All rights reserved. Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by
30、IHS under license with IEEENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEENot for ResaleNo reproduction or networking permitted without license from IHS-,-
31、,-American National Standard Performance Criteria for Spectroscopy-Based Portal Monitors Used for Homeland Security 1. 1.11.2Overview Scope This standard specifies the operational and performance requirements for spectroscopy-based portal monitors used in U.S. Homeland Security applications. Spectro
32、scopy-based portal monitors have the ability to detect radioactivity and identify radionuclides that may be present in or on persons, vehicles, or containers through the use of gamma spectroscopy techniques. Performance requirements for those portal monitors that do not provide information about the
33、 specific radionuclide present are addressed by ANSI N42.35. Operational requirements established by this standard include radiation detection and radionuclide identification, and those requirements associated with the expected electrical, mechanical, and environmental conditions when a monitor is d
34、eployed. The test methods described in this standard provide a means to ensure that a monitor meets the requirements stated. Successful completion of the tests described in this standard should not be construed as an ability to successfully detect and identify all radionuclides in all environments.
35、This standard does not address portal monitors that may have the ability to reduce the effects caused by the presence of naturally occurring radioactive material (NORM) without the ability to identify specific radionuclides (see ANSI N42.35).1Purpose The purpose of this standard is to specify the pe
36、rformance criteria and test methods for spectroscopy-based portal monitors used for Homeland Security. 1The ANSI N42 publications included in this clause are available from the Institute of Electrical and Electronics Engineers, 445 Hoes Lane, Piscataway, NJ 08855-1331, USA (http:/standards.ieee.org/
37、). 1 Copyright 2007 IEEE. All rights reserved. Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI N42.38-2006 American National Standard Performance Crite
38、ria for Spectroscopy-Based Portal Monitors Used for Homeland Security 1.31.3.11.3.22. General Evaluation of monitors Testing is conducted under a set of conditions to determine if a monitor meets the requirements of this standard. Special applications, which could include a monitors operation under
39、weather conditions not addressed by this standard, shall require additional testing. Detection needs not addressed by this standard shall also require additional testing. Evaluations provide information to government agencies and other users on the capability of radionuclide-identifying portal monit
40、ors for reliably detecting and identifying radioactive material. Meeting performance specifications Obtaining operating performance that meets or exceeds the specifications stated in this standard depends upon properly installing the monitor, establishing appropriate operating parameters, providing
41、security for the systems, maintaining calibration, implementing a suitable routine testing and maintenance program, auditing compliance with quality requirements, and providing proper training for operating personnel. Normative references This standard shall be used in conjunction with the following
42、 publications. 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 N42.22, American National StandardTraceability of Radioactive Sources to the National Institute of Standar
43、ds and Technology (NIST) and Associated Instrument Quality Control.2ANSI N42.23, American National Standard Measurement and Associated Quality Assurance for Radioassay Laboratories. ANSI N42.34, American National Standard Performance Criteria for Hand-Held Instruments for the Detection and Identific
44、ation of Radionuclides. ANSI N42.35, American National Standard for Evaluation and Performance of Radiation Detection Portal Monitors for Use in Homeland Security. ANSI N42.42, American National Standard Data Format Standard for Radiation Detectors Used for Homeland Security.3ANSI/TIA-232-F-1997, In
45、terface Between Data Terminal Equipment and Data Circuit-Terminating Equipment Employing Serial Binary Data Interchange. ANSI/TIA/EIA-485-A-98, Electrical Characteristics of Generators and Receivers for Use in Balanced Digital Multipoint Systems. FCC Rules, Code of Federal Regulations, Title 47, Par
46、t 15, Radio Frequency Devices.42The ANSI N42 publications included in this clause are available from the Institute of Electrical and Electronics Engineers, 445 Hoes Lane, Piscataway, NJ 08855-1331, USA (http:/standards.ieee.org/). 3The ANSI N42.42 schema can be obtained from http:/physics.nist.gov/Divisions/Div846
