Recent and Planned Developments in the CARI Program
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Recent and Planned Developments in the CARI Program

Filetype[PDF-547.33 KB]


  • English
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    • Creators:
      Copeland, Kyle
    • Corporate Creators:
      Civil Aerospace Medical Institute
    • Subject/TRT Terms:
    • Publication/ Report Number:
      DOT/FAA/AM-13/6
    • Resource Type:
      Tech Report
    • Geographical Coverage:
      United States
    • Corporate Publisher:
      United States. Office of Aerospace Medicine
    • Abstract:
      CARI-6 is the sixth major release of galactic cosmic radiation (GCR) dose calculation software developed by the U.S. Federal Aviation Administration (FAA). The software is of benefit to the FAA and the public as a tool used by scientists investigating health effects of ionizing radiation in the atmosphere. It provides GCR dose estimates for past flights and also serves as a verified radiation monitoring tool to aid the aviation industry and individuals in their radiation protection programs. Compiled versions of the software are available from the Radiobiology Research Team Website. The source code is available upon request. CARI-6 is based on the last major revision of the galactic cosmic radiation transport code LUIN (LUIN2000, released in 2000). The last minor variant of LUIN2000 (LUINNCRP) was delivered to the FAA in 2003 and reported effective doses as defined in National Council on Radiation Protection and Measurements Report 116. LUINNCRP was revised to produce dose outputs of ambient dose equivalent (H*(10)) and effective dose as defined in International Commission on Radiological Protection (ICRP) Publication 103, in addition to the release standard of effective dose as defined in ICRP Publication 60. These modifications were needed because ICRP Pub. 103 made ICRP Pub. 60 effective doses obsolete (though still legally the standard in many countries) and H*(10) is a measureable quantity to which instruments are often calibrated, whereas effective dose cannot be measured. Thus, adding H*(10) and the new effective dose was needed to keep CARI-6 up-to-date in terms of dose calculation standards. As another improvement, cutoff rigidities for geomagnetic epoch 2000 are included (previous most recent epoch was 1995).
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