| Autor: |
Jacob I. Trombka, G.J. Bamford, R.L. Coldwell, A. C. Rester |
| Rok vydání: |
1990 |
| Předmět: |
|
| Zdroj: |
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 297:258-267 |
| ISSN: |
0168-9002 |
| DOI: |
10.1016/0168-9002(90)91374-k |
| Popis: |
A cyclindrical bismuth germanate (BGO) detector (7.5 cm diameter × 7.5 cm long) and a cylindrical bare crystal of BGO (2.5 cm diameter × 2.5 cm long) were exposed to a fluence of 1.1 × 108 protons cm−2 at 1.5 GeV energy, roughly equivalent to that expected on an interplanetary journey to Mars. No degradation in the energy resolution or counting efficiency of the BGO detector was observed, although the background continuum increased significantly. Events emanating from the bare crystal were counted externally with a high-resolution germanium detector. The activation lines identified were compared to a spectrum from an externally counted BGO detector taken on a high-altitude balloon flight over Antarctica. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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