This standard applies to non-intrusive inspection (NII) systemsusing active interrogation methods for the detection of contraband(drugs, explosives, and weapons of mass destruction [WMD]).Highenergy neutrons have been used for such purposes but othermethods are being developed that use high-energy photons as well.In particular, this standard covers the safety aspects of activeinterrogation systems, henceforth called “systems,” using, but notlimited to, high-energy x-rays (bremsstrahlung) produced byhigh-energy electron linear accelerators, high-energy neutronsproduced by the (d,d) and (d,T) reactions, fission neutrons from252Cf, highenergy neutrons produced by (γ,n) reaction in linearaccelerators using Be/W targets, or other accelerator methods forproducing high-energy photons and neutrons. (In this standard, theterm high-energy photons is used to mean high-energy x-rays andgamma rays in the MeV range of energies.)
The maximum energy of the ionizing radiation used forinterrogation by these systems is limited to 100 MeV because theuse of general-purpose active interrogation systems employingenergies greater than this level is not expected in the foreseeablefuture.
This standard does not apply to conventional security imagingsystems using x-rays and gamma rays. However, it includes hybridsystems combining active interrogation systems with conventionalsecurity imaging systems. In that case, a hybrid system capable ofdoing both functions shall meet the standards of both types ofsystems.
This standard does not apply to general safety involvingmechanical failure, electrical shock, chemical explosion, gasesunder pressure, and noxious gases. It also does not apply topossible damaging effects of ionizing radiation to foods, medicaldevices, pharmaceuticals, photographic films and papers, andmicroelectronic devices containing computer chips.
- Edition:
- 11
- Published:
- 01/01/2011
- ANSI:
- ANSI Approved
- Number of Pages:
- 83
- File Size:
- 1 file , 850 KB
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