Speaker
Description
Gamma dose rates in the Gy/h to kGy/h range can be found at particle accelerators in hot points such as targets, bending magnets or interaction points. As these points constitute "source terms" in shielding design, a device to correctly measure these doses is desirable. Although a number of passive dosimetry techniques have been established in the past, very few or no direct-reading dosimeters are available for this purpose. In the framework of ENEA-INFN (Italy) collaboration, a test campaign was organized to evaluate the performance of semiconductor-based gamma detectors as active dosemeters for very high gamma dose rates. Gamma detectors based on Silicon, Silicon Carbide and GaAsP substrates were manufactured at the LEMRAP Laboratory (INFN Frascati) and tested at the ENEA Calliope 60Co gamma Facility (ENEA Casaccia) at dose rates up to few kGy/h. This communication reports the results of the tests focusing on sensitivity, radiation resistance and scalability to multi-dosemeter systems.
| Scientific Topic 4 | Shielding and dosimetry |
|---|
