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Depth distribution of absorbed dose on the external surface of Cosmos 1887 biosatelliteSignificant absorbed dose levels exceeding 1.0 Gy day-1 have been measured on the external surface of the Cosmos 1887 biosatellite as functions of depth in stacks of thin thermoluminescent detectors (TLDs) of U.S.S.R. and U.S.A. manufacture. The dose was found to decrease rapidly with increasing absorber thickness, thereby indicating the presence of intensive fluxes of low-energy particles. Comparison between the U.S.S.R. and U.S.A. results and calculations based on the Vette Model environment are in satisfactory agreement. The major contribution to the dose under thin shielding thickness is shown to be from electrons. The fraction of the dose due to protons and heavier charged particles increases with shielding thickness.
Document ID
20040090411
Acquisition Source
Johnson Space Center
Document Type
Reprint (Version printed in journal)
Authors
Dudkin, V. E.
(Institute of Biomedical Problems of the Ministry of Public Health of the U.S.S.R. Moscow)
Kovalev, E. E.
Benton, E. V.
Frank, A. L.
Watts, J. W. Jr
Parnell, T. A.
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: NAG9-235
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Number 04-10
short duration
unmanned
Non-NASA Center
NASA Discipline Radiation Health
Cosmos 1887 Project
NASA Discipline Number 00-00
Flight Experiment
NASA Program Flight
NASA Program Radiation Health

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