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Efficiency of a radiophotoluminescence glass dosemeter for low-earth-orbit space radiationChips of a radiophotoluminescence glass dosemeter (RPLG) were used for measurements of space radiation during a 9.8 d Shuttle-Mir mission (STS-91) at an altitude of 400 km and an inclination of 51.65 degrees. Two of RPLG chips were put into each of 59 positions in or on a life-size human phantom. The RPLG values equivalent to 137Cs gamma ray absorbed doses were found to be systematically lower than those of a Mg2SiO4:Tb thermoluminescence dosemeter (TDMS). In comparison with the organ or tissue absorbed dose and dose equivalent values that were estimated using a combination of TDMS and plastic nuclear track detectors, the efficiencies of the RPLG chips were about 80% for the water absorbed dose and about 40% for the dose equivalent. Whereas the percentage values will change during different missions, such additional information obtained from small RPLG chips is useful for improving the reliability of radiation dosimetry in space.
Document ID
20040088040
Acquisition Source
Johnson Space Center
Document Type
Reprint (Version printed in journal)
Authors
Yasuda, H.
(National Institute of Radiological Sciences Chiba-shi, Japan)
Fujitaka, K.
Badhwar, G. D.
Date Acquired
August 21, 2013
Publication Date
January 1, 2002
Publication Information
Publication: Radiation protection dosimetry
Volume: 100
Issue: 1-4
ISSN: 0144-8420
Subject Category
Aerospace Medicine
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Radiation Health
manned
Flight Experiment
STS-91 Shuttle Project
Non-NASA Center
NASA Experiment Number 9307039
short duration

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