COSMIC RAY ENERGETICS AND MASS
The Cosmic Ray Energetics And Mass (CREAM) investigation is designed to measure cosmic ray composition to the supernova energy scale of 1015 eV in a series of Ultra Long Duration Balloon (ULDB) flights. Our objective is to observe cosmic ray spectral features and/or abundance changes that might sign...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.475.4682 http://www.atic.umd.edu/pub/Cosmic Ray Energetics And Mass3.pdf |
| Summary: | The Cosmic Ray Energetics And Mass (CREAM) investigation is designed to measure cosmic ray composition to the supernova energy scale of 1015 eV in a series of Ultra Long Duration Balloon (ULDB) flights. Our objective is to observe cosmic ray spectral features and/or abundance changes that might signify a limit to supernova acceleration. The particle charge (Z) measurements will be made with a timing-based charge detector and a pixelated silicon charge detector to minimize the backscatter effect. The particle energy measurements will be made with a transition radiation detector (TRD) for Z> 3 and a sampling tungsten/scintillator calorimeter for Z 1, allowing inflight cross calibration of the two de tectors. The first CREAM flight is planned to be launched from Antarctica in December 2003. The status of the payload construction and flight preparation are reported in this paper. |
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