Three-dimensional shielding effects on charged particle fluences measured in the P0006 experiment of LDEF

Details Three-dimensional shielding effects on charged particle fluences measured in the P0006 experiment of LDEF Three-dimensional shielding effects on charged particle fluences measured in the P0006 experiment of LDEF

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ldef.symp..187c&link_type=abstract

In NASA. Langley Research Center, LDEF: 69 Months in Space. Part 1: Second Post-Retrieval Symposium p 187-194 (SEE N93-29621 11-

Physics

Charged Particles, Galactic Cosmic Rays, Long Duration Exposure Facility, Radiation Effects, Radiation Shielding, Spacecraft Shielding, Aerospace Environments, Radiation Dosage, Radiation Measurement, Spacecraft Environments, Three Dimensional Models

Scientific paper

Three-dimensional shielding effects on cosmic ray charged particle fluences were measured with plastic nuclear track detectors in the P0006 experiment on Long Duration Exposure Facility (LDEF). The azimuthal and polar angle distributions of the galactic cosmic ray particles (mostly relativistic iron) were measured in the main stack and in four side stacks of the P0006 experiment, located on the west end of the LDEF satellite. A shadowing effect of the shielding of the LDEF satellite is found. Total fluence of stopping protons was measured as a function of the position in the main and side stacks of the P0006 experiment. Location dependence of total track density is explained by the three-dimensional shielding model of the P0006 stack. These results can be used to validate 3D mass model and transport code calculations and also for predictions of the outer radiation environment for the Space Station Freedom.

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