| タイトル | Solar flare X-ray polarimeter utilizing a large area thin beryllium scattering disk |
| 著者（英） | Gotthelf, E.; Emslie, A.; Hamilton, T.; Weisskopf, M.; Novick, R.; Chanan, G. |
| 著者所属（英） | Alabama Univ.|California Univ.|NASA Marshall Space Flight Center|Columbia Univ. |
| 発行日 | 1989-01-01 |
| 言語 | eng |
| 内容記述 | A model of a solar flare X-ray polarimeter utilizing a large-area thin beryllium scattering disk was developed using Monte Carlo techniques for several classes of solar flares. The solar-flare polarimeter consists of a 30-cm-diam Be disk of about 1/3 of a scattering length thickness, which is surrounded by a cylindrical detector composed of six segmented panels of NaI scintillators, each coupled to 15 photomultiplier tubes. The instrument is sensitive to X-rays from 10 to 100 keV. For a class-M-2 solar flare observed for 10 sec from a balloon at an altitude of 150,000 ft, the minimum detectable polarization at the 99 percent statistical confidence level was found to be 1-6 percent over the energy range 20-100 keV. |
| NASA分類 | INSTRUMENTATION AND PHOTOGRAPHY |
| レポートNO | 90A46030 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/354465 |
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