| タイトル | Evaluation of Charge Storage and Decay in Spacecraft Insulators |
| 本文（外部サイト） | http://hdl.handle.net/2060/20110024090 |
| 著者（英） | Bockman, James; Benson, Charles; Frederickson, Arthur |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 2003-01-01 |
| 言語 | eng |
| 内容記述 | Two reports discuss methods for evaluating the magnitude of electrostatic charging that occurs in spacecraft dielectric materials (in particular, polyimides) during prolonged exposure to radiation in outer space. The reports describe experiments on the electrical resistivities and charge-storage properties of polyimide specimens in a dark, evacuated environment, both before and after 5-megarad exposures to rays from cobalt-60. The experiments were designed to measure these properties not under standard conditions prescribed for testing dielectrics in air but, rather, under conditions approximating those in the intended spacecraft applications. The results of the experiments showed that the electrical resistivities of the insulations as determined under these conditions are greater, by a factor of roughly a thousand, than those determined under the standard conditions and that the gamma irradiation reduced resistivities marginally. |
| NASA分類 | Man/System Technology and Life Support |
| レポートNO | NPO-30482 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/267874 |
