LDEF RADIATION MEASUREMENTS - PRELIMINARY-RESULTS

被引：5

作者：

HARMON, BA ^{[1
]}

FISHMAN, GJ ^{[1
]}

PARNELL, TA ^{[1
]}

BENTON, EV ^{[1
]}

FRANK, AL ^{[1
]}

机构：

[1] UNIV SAN FRANCISCO,DEPT PHYS,SAN FRANCISCO,CA 94117

来源：

NUCLEAR TRACKS AND RADIATION MEASUREMENTS | 1992年 / 20卷 / 01期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1016/1359-0189(92)90090-I

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The Long Duration Exposure Facility (LDEF), retrieved by the Space Shuttle mission STS-32 after nearly 6 yr in orbit, is the focus of a broad-based study of the radiation environment in low Earth orbit (LEO) and its effects on materials. A combination of passive techniques has been used to study this environment via detectors which were contained in experiments aboard the LDEF spacecraft and through analysis of induced radioactivities. Preliminary results for absorbed dose measurements and for induced activities in various materials are presented. A number of effects have been observed which reflect the anisotropy of the charged particle flux in low Earth orbit. Quantitative results from these measurements should provide an accurate means of confirming environmental flux models and techniques for predicting radiation encountered in future LEO missions, particularly those of extended duration.

引用

页码：131 / 136

页数：6

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