RADFET DOSIMETERS IN THE BELT: the VAN ALLEN PROBES ON DAY 365

被引:0
|
作者
Holmes-Siedle, A. G. [1 ]
Goldsten, J. O. [2 ]
Maurer, R. H. [2 ]
Peplowski, P. N. [2 ]
机构
[1] REM Oxford Ltd, Oxford OX29 4PD, England
[2] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA
关键词
RADFET; dosimetry; detectors; radiation damage; radiation environment; radiation hardening; spacecraft dielectric charging currents; Van Allen Probes;
D O I
暂无
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
Van Allen Probes spacecraft VAP-A and -B, launched over a year ago [August 2012], carried 16 pMOS RADFETs into an orbit designed by NASA to probe the heart of the trapped-radiation belts. Nearly 350 days of in situ measurements from the Engineering Radiation Monitor (ERM) (a) demonstrated strong variations of dose rates with time, (b) found a critical correlation between its RADFET dosimeter and Faraday cup data on charged particles, and (c) mapped the belts by measuring variation with orbit altitude. This paper provides update on early results given in [ 1] along with details and discussion of the RADFET dosimetry analysed.
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页数:7
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