Radiation damage in silicon detectors. Summary progress report, July 15, 1987--November 30, 1989
The study of the radiation damage and energy loss mechanisms in silicon diode detectors has been made. The combined work of the first and second years has led to an estimate of the neutron flux expected from iron calorimetry at the SSC. This yield compares well to the flux calculated in detail via the ORNL CALOR program and is consistent with a much simpler picture that gives an excellent representation of the data with far less computation. In Fe absorbers spallation processes followed by simple, isotropic neutron evaporation account for the dominant low-energy neutron flux. The energy transport, important for compensated hadronic calorimetry, is shared between the numerically dominant 1 MeV neutron flux and the higher energy spallation flux. This makes it conceivable to design compensated calorimeters with neutron moderators to reduce the damage in silicon. Furthermore, the high energy neutron flux can be counted in silicon detectors to enhance the hadronic signal.
- Research Organization:
- Carnegie-Mellon Univ., Pittsburgh, PA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-87ER40367
- OSTI ID:
- 10133091
- Report Number(s):
- DOE/ER/40367--2; ON: DE93009372
- Country of Publication:
- United States
- Language:
- English
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