A hybrid photon detector based on SiC Schottky diode

A new type of hybrid photon detector (HPD) based on SiC Schottky diode, with good radiation resistance and large sensitive area, has been constructed for either steady or pulsed light illumination. A series of experiments were carried out to examine its performance. As a result, the prototype SiC-HPD obtained a gain varying from 0 to 418, when the acceleration high voltage was up to 10 kV . In addition, the prototype SiC-HPD showed a nanoseconds time response with leading edge of 3.5 ns (FWHM ~ 16.6 ns) and a maximum output current around 0.65 A under long pulse irradiation. The results indicate that the SiC-HPD is a very promising detector with high gain, fast-time-response and high pulse linearity current for the radiation-field measurements.