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Airport Passenger Screening Using Millimeter Wave Machines Compliance with Guidelines (2017) / Chapter Skim
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1 Introduction
Pages 10-15

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From page 10...
... In 2008, the TSA introduced X-ray backscatter AIT systems manufactured by Rapiscan for airport security. However, there were public health concerns raised concerning the use of ionizing radiation.1 Moreover, the use of full-body images raised privacy concerns in the public sector.
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From page 11...
... involving 10 to 100 µW of total output power from antennas operating at 24-30 GHz.5 Measurement and Relevant Quantities Biological effects relevant for the evaluation of potential hazards or risks from radiation exposures are generally related to the amount of energy absorbed from the radiation per unit mass in units of joules per kilogram (J/kg) , which is called the absorbed dose or, simply, the dose.
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From page 12...
... Two areas of the body, the eyes and the testes, are known to be particularly vulnerable to heating by RF energy because of the relative lack of available blood flow to dissipate the excessive heat load. 6    The SI unit is W/m2, but the unit has commonly been expressed as mW/cm2.
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From page 13...
... examines available data related to potential nonthermal effects and concluded, "Whilst it is in principle impossible to disprove the possible existence of non-thermal interactions, the plausibility of various non-thermal mechanisms that have been proposed is very low."10 Nonthermal effects reported have included changes in the immune system, and neurological and behavioral effects.11 Chapter 3 of this report addresses the relevant radiation protection guidelines and standards in detail. Interaction with Personal Electronic Medical Devices (PMEDs)
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From page 14...
... NOTE: This study will not address legal, cultural or privacy implications of this technology. For the purposes of this study, the study committee will not question the adequacy of the of ficial radiation exposure standards currently in place THE STUDY REQUEST The TSA requested a study by the National Research Council12 (NRC)
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From page 15...
... Chapter 3 describes radiation protection guidelines and standards. Chapter 4 reviews previous studies of millimeter wave AIT.
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Key Terms

  • radiation protection
  • electromagnetic fields
  • active millimeter
  • wave ait
  • advanced imaging

  • safety standards
  • field strength
  • power density
  • imaging technology
  • wave advanced

  • radiation exposures
  • health consequences
  • protection guidelines
  • security administration
  • international commission

  • study request
  • strength decreases
  • medical devices
  • transportation security
  • previous studies

  • excessive heat
  • biological effects
  • electromagnetic radiation
  • wave radiation
  • wave scanners

  • health concerns
  • wave body
  • identified health
  • describes millimeter
  • ficial radiation


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