ANSI N42.41 : 2007

MINIMUM PERFORMANCE CRITERIA FOR ACTIVE INTERROGATION SYSTEMS USED FOR HOMELAND SECURITY

Institute of Electrical & Electronics Engineers

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1 Overview
  1.1 Scope
  1.2 Purpose
  1.3 General considerations
2 Normative references
3 Definitions
  3.1 General
  3.2 Definitions of particular relevance to N42.41
  3.3 Special word usage
4 General characteristics of active interrogation systems
  4.1 Inspection zone characteristics
  4.2 Interrogating radiation type and physical principles
  4.3 Physical configurations
5 Performance requirements
  5.1 Simulants
  5.2 Requirements for PD, PFA, and statistical confidence
  5.3 Average allowed inspection times
  5.4 Simulated cargo loadings and simulant locations
  5.5 Specification of masses to be detected
6 Electromagnetic, mechanical, environmental, and radiation
  protection requirements
  6.1 Ambient temperature
  6.2 Relative humidity (RH)
  6.3 Radio frequency (RF)
  6.4 Radiated emissions
  6.5 Magnetic fields
  6.6 AC line voltage operation
  6.7 Electrostatic discharge
  6.8 Conducted disturbances induced by bursts and radio frequencies
  6.9 Vibration and shock
  6.10 Sealing
  6.11 Radiation protection
7 Documentation
  7.1 Type test report
  7.2 System description
  7.3 Operation and maintenance manuals
Annex A (informative) Simulants
      A.1 C4 or Plastique military explosive
      A.2 Ammonium nitrate plus fuel oil (ANFO) explosive
      A.3 Sarin nerve agent GB
      A.4 Mustard gas HD
      A.5 Low-enrichment uranium (LEU) with 19.5% [235]U
      A.6 Tungsten carbide spherical shell
Annex B (informative) Statistical considerations

Abstract

Describes the operational and performance requirements for active interrogation systems for use in homeland security applications. These systems employ penetrating ionizing radiation (e.g., neutrons, high-energy x-rays, gamma-rays) to detect and identify hidden chemical, nuclear, and explosive agents by detection of stimulated secondary radiations or by nuclear resonance contrast, giving elemental and/or nuclidic identification of the composition of the substances-of-interest.