Title :
Total dose orbital data by dosimeter onboard Tsubasa (MDS-1) satellite
Author :
Kimoto, Yugo ; Koshiishi, Hideki ; Matsumoto, Haruhisa ; Goka, Tateo
Author_Institution :
Nat. Space Dev. Agency of Japan, Ibaraki, Japan
Abstract :
The total dose data from a Tsubasa (MDS-1) satellite, flying in a highly eccentric orbit, is analyzed. The total dose is measured by the small dosimeter using RADFETs. The RADFETs have been calibrated with the Co60 gamma ray source, and 56 devices (denoted DOS-S) were mounted in several experimental modules in the satellite. The total dose data behind certain Aluminum shield domes have been analyzed initially. The total dose change is affected by electron flux in the thin shield. In thicker shield, electron and proton affect the total dose profile.
Keywords :
MOSFET; alpha-particle effects; dosimeters; electron beam effects; gamma-ray effects; proton effects; radiation hardening (electronics); shielding; space vehicle electronics; MDS-1 satellite; PMOS dosimeter; SHIELDOSE-2; Tsubasa satellite; alpha particle channels; aluminum shield domes; electron fluxes; gamma ray source calibrated; heavy ion telescope; high-accuracy model; highly eccentric orbit; proton fluxes; radiation-sensitive field effect transistor; small dosimeter; space radiation environment; total dose orbital data; Aluminum; Electrons; Extraterrestrial measurements; Ionizing radiation; Protons; Satellites; Space missions; Space shuttles; Space technology; Space vehicles;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2003.821399
