| タイトル | Gamma ray detection with long NaI/Tl/ scintillator bars |
| 著者（英） | Tumer, O. T.; Zych, A. D.; Dayton, B. |
| 著者所属（英） | California Univ.|California State Univ. |
| 発行日 | 1983-02-01 |
| 言語 | eng |
| 内容記述 | Test measurements with a prototype NaI(Tl) scintillator for energy, position, and timing measurements in gamma ray astronomy are reported. The scintillator bar is 100 x 5 x 5 cu cm in size, and allows detection of the arrival times and pulse heights of signals from two photomultiplier tubes, one at each end of the bar. Data is gathered on the energy loss, linear position, and time-of-flight of gamma ray interactions within the bar over an energy range of 0.5-20 MeV. A mean attenuation coefficient of 0.015/cm has been determined, as have a FWHM resolution of 5 cm, 9.4%, and 10 nsec at an energy of 0.662 MeV. At 1.25 MeV the timing resolution was 6 nsec, and at 6.13 MeV the spatial resolution was 2.2 cm. The instrument is a prototype of a Compton scatter telescope being constructed for two balloon flights, one each in the Northern and Southern Hemispheres, in 1984. |
| NASA分類 | INSTRUMENTATION AND PHOTOGRAPHY |
| レポートNO | 83A24104 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/405282 |
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