| タイトル | Hard X-ray and low-energy gamma-ray spectrometers |
| 著者（英） | Orwig, L. E.; Gehrels, N.; Forrest, D. J.; Lin, R. P.; Starr, R.; Crannell, C. J. |
| 著者所属（英） | New Hampshire Univ.|Catholic Univ. of America|California Univ.|NASA Goddard Space Flight Center |
| 発行日 | 1988-01-01 |
| 言語 | eng |
| 内容記述 | Basic principles of operation and characteristics of scintillation and semi-conductor detectors used for solar hard X-ray and gamma-ray spectrometers are presented. Scintillation materials such as NaI offer high stopping power for incident gamma rays, modest energy resolution, and relatively simple operation. They are, to date, the most often used detector in solar gamma-ray spectroscopy. The scintillator BGO has higher stopping power than NaI, but poorer energy resolution. The primary advantage of semi-conductor materials such as Ge is their high-energy resolution. Monte-Carlo simulations of the response of NaI and Ge detectors to model solar flare inputs show the benefit of high resoluton for studying spectral lines. No semi-conductor material besides Ge is currently available with adequate combined size and purity to make general-use hard X-ray and gamma-ray detectors for solar studies. |
| NASA分類 | INSTRUMENTATION AND PHOTOGRAPHY |
| レポートNO | 89A28119 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/365051 |
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