Particle directionality and trapped proton fluences on LDEF

Nefedov, N.; Csige, I.; Benton, E. V.; Frank, A. L.; Frigo, L. A.; Benton, E. R.

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NASA NTRS · 20040089395

Particle directionality and trapped proton fluences on LDEF

Nefedov, N.·Csige, I.·Benton, E. V.·Frank, A. L.·Frigo, L. A.·Benton, E. R.

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Abstract

Directionality of incident space radiation is a significant factor in spacecraft shielding and astronaut dosimetry in low Earth orbit (LEO). Particle directionality of GCR and trapped protons were measured on LDEF with plastic nuclear track detectors (PNTD) from the P0006 west-side experiment. This experiment consisted of a thick detector stack and is described more fully in a companion article (Benton et al., 1996). The anisotropy of the trapped protons produced maximum intensity for protons arriving from the west. The fluences of the eastward directed trapped protons have been measured by selection of the particles on the basis of range in the PNTDs. The measured fluences are compared with the model calculations of Armstrong and Colborn (1993).

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unmanned NASA Discipline Radiation Health Non-NASA Center Flight Experiment long duration LDEF Project Protons Radiation Monitoring/instrumentation Cosmic Radiation Space Flight Support, U.S. Gov't, Non-P.H.S Linear Energy Transfer Iron Radiometry Anisotropy Spacecraft Comparative Study Solar Activity Ions

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Nefedov, N., Csige, I., Benton, E. V., Frank, A. L., Frigo, L. A., Benton, E. R.. 1996-11-01. Particle directionality and trapped proton fluences on LDEF. https://ntrs.nasa.gov/citations/20040089395

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