Implication of microdosimetry in estimation of radiation quality in space environment.
Errors introduced using a tissue equivalent proportional counter to estimate radiation quality of an arbitrary ion field as related to space radiations are examined. This is accomplished by using a generalized analytic model to calculate the effect of energy loss straggling, track structure, and pathlength distribution on the microdosimetric distribution. The error can be as large as a factor of two, but no systematic trend could be found.
Shinn
J L
JL
Materials Division, NASA Langley Research Center, Hampton VA 23681-0001, USA.
Wilson
J W
JW
Singleterry
R C
RC
Xapsos
M A
MA
D005118:Extraterrestrial Environment; D018478:Extravehicular Activity; D018499:Linear Energy Transfer; D015233:Models, Statistical; D011874:Radiometry / Q000379:methods*