Presidential Report on Radiation Protection Advice: Screening of Humans for
Security Purposes Using Ionizing Radiation Scanning Systems
"This Presidential Report from the National Council on Radiation Protection and
Measurements (NCRP) presents radiation protection advice concerning ionizing
radiation-producing devices that are being evaluated for various uses in screening of
humans for the purpose of security. Chief among the devices being evaluated at the
present time are scanning systems that utilize x rays. This report addresses systems
utilizing ionizing radiation, but also describes briefly some systems under
consideration that utilize nonionizing radiation sources (see Section 3.4).

The report stresses that this advice is limited to radiation matters such as the
levels of radiation exposure encountered, the radiation risk associated with ionizing
radiation in general (as well as the risk associated with the actual levels encountered), and application of NCRP radiation protection principles to this radiation source. The overall justification for use of such devices for specific security applications and what constitutes a net benefit to society are broader questions that are outside of NCRP ’s role as defined by its Congressional charter..."