| タイトル | The Nuclear Astrophysics Explorer |
| 著者（英） | Matteson, J. L.; Teegarden, B. J.; Gehrels, N.; Mahoney, W. A. |
| 著者所属（英） | NASA Goddard Space Flight Center; Jet Propulsion Lab., California Inst. of Tech.; California Univ. |
| 発行日 | 1989-01-01 |
| 言語 | eng |
| 内容記述 | The Nuclear Astrophysics Explorer was proposed in 1986 for NASA's Explorer Concept Study Program by an international collaboration of 25 scientists from nine institutions. The one-year feasibility study began in June 1988. The Nuclear Astrophysics Explorer would obtain high resolution observations of gamma-ray lines, E/Delta E about 1000, at a sensitivity of about 0.000003 ph/sq cm s, in order to study fundamental problems in astrophysics such as nucleosynthesis, supernovae, neutron star and black-hole physics, and particle acceleration and interactions. The instrument would operate from 15 keV to 10 Mev and use a heavily shielded array of nine cooled Ge spectrometers in a very low background configuration. Its 10 deg FWHM field of view would contain a versatile coded mask system which would provide two-dimensional imaging with 4 deg resolution, one-dimensional imaging with 2 deg resolution, and efficiendt measurements of diffuse emission. An unshielded Ge spectrometer would obtain wide-field measurements of transient gamma-ray sources. The earliest possible mission would begin in 1995. |
| NASA分類 | ASTRONAUTICS (GENERAL) |
| レポートNO | 89A25348
AIAA PAPER 89-0414 |
| 権利 | Copyright |
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