NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Particle directionality and trapped proton fluences on LDEFDirectionality 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).
Document ID
20040089395
Acquisition Source
Marshall Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Nefedov, N.
(University of San Francisco CA 94117-1080, United States)
Csige, I.
Benton, E. V.
Frank, A. L.
Frigo, L. A.
Benton, E. R.
Date Acquired
August 21, 2013
Publication Date
November 1, 1996
Publication Information
Publication: Radiation measurements
Volume: 26
Issue: 6
ISSN: 1350-4487
Subject Category
Life Sciences (General)
Funding Number(s)
CONTRACT_GRANT: NAG8-168
CONTRACT_GRANT: NAGW-4154
CONTRACT_GRANT: NAG8-282
Distribution Limits
Public
Copyright
Other
Keywords
unmanned
NASA Discipline Radiation Health
Non-NASA Center
Flight Experiment
long duration
LDEF Project

Available Downloads

There are no available downloads for this record.
No Preview Available