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Performance of silicon microdosimetry detectors in boron neutron capture therapy
P D Bradley1, A B Rosenfeld, B Allen
1Radiation Physics Group, University of Wollongong, New South Wales, Australia.
Radiation Research
|March 12, 1999
Abstract:
Reverse-biased silicon p-n junction arrays using Silicon-On-Insulator technology have been proposed as microdosimeters. The performance of such detectors in boron neutron capture therapy (BNCT) is discussed. This work provides the first reported measurements using boron-coated silicon diode arrays as microdosimeters in BNCT. Results are in good agreement with measurements with gas proportional counters. Various boron-coating options are investigated along with device orientation effects. Finally, a 235U coating is tested to simulate the behavior of the device in a heavy-ion therapy beam.