Development of Low-noise Double-sided Silicon Strip Detector for Cosmic Soft Gamma-ray Compton Camera
Double-sided silicon strip detector (DSSD) is one of key technologies for constructing a Compton Camera, which is expected to proceed a high-sensitivity soft gamma-ray observation in the energy range of 0.1-20 MeV. The merits of DSSD are its high energy resolution, high scattering efficiency, low radio-activation in the orbit, moderate radiation hardness, smaller Doppler broadening, availability of large-size one, and stable performance. We have developed a low-noise system of DSSD and front-end LSI for the Compton camera, by optimizing geometrical structures of DSSD. We have thus obtained an energy resolution of 1.3 keV (FWHM) for 60 keV and 122 keV at -10 C in the multi-channel reading. Gamma-ray responses such as image flatness and charge splittings were found to be not problematic. We also demonstrated that our system achieved the good angular resolution close to the Doppler-broadening limit in the Compton imaging by two DSSDs.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 839892
- Report Number(s):
- SLAC-PUB-11146; TRN: US0503301
- Country of Publication:
- United States
- Language:
- English
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