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Linear energy transfer (LET) spectra of cosmic radiation in low Earth orbitIntegral linear energy transfer (LET) spectra of cosmic radiation (CR) particles were measured on five Cosmos series spacecraft in low Earth orbit (LEO). Particular emphasis is placed on results of the Cosmos 1887 biosatellite which carried a set of joint U.S.S.R.-U.S.A. radiation experiments involving passive detectors that included thermoluminescent detectors (TLDs), plastic nuclear track detectors (PNTDs), fission foils, nuclear photo-emulsions, etc. which were located both inside and outside the spacecraft. Measured LET spectra are compared with those theoretically calculated. Results show that there is some dependence of LET spectra on orbital parameters. The results are used to estimate the CR quality factor (QF) for the Cosmos 1887 mission.
Document ID
20040090407
Acquisition Source
Marshall Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Akopova, A. B.
(Yerevan Institute of Physics U.S.S.R)
Magradze, N. V.
Dudkin, V. E.
Kovalev, E. E.
Benton, E. V.
Frank, A. L.
Benton, E. R.
Parnell, T. A.
Watts, J. W. Jr
Date Acquired
August 21, 2013
Publication Date
January 1, 1990
Publication Information
Publication: International Journal Of Radiation Applications And Instrumentation. Part D, Nuclear Tracks And Radiation Measurements
Volume: 17
Issue: 2
ISSN: 0735-245X
Subject Category
Aerospace Medicine
Funding Number(s)
CONTRACT_GRANT: NCC2-521
CONTRACT_GRANT: NAG8-071
CONTRACT_GRANT: NAG9-235
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Radiation Health
NASA Discipline Number 04-10
NASA Discipline Number 00-00
Cosmos 1887 Project
NASA Program Flight
Flight Experiment
NASA Program Radiation Health
unmanned
short duration
Non-NASA Center
Cosmos Project

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