| 摘要 |
With radiation detectors in which the energy of radiation is absorbed in a semiconductor or insulator radiation absorber, where that energy is converted to phonons, and the radiation is measured by measuring those phonons with a phonon sensor provided on the surface of the radiation absorber, part of the energy of the radiation is expended in generating electron-hole pairs, and that portion of the energy does not contribute to the signal from the phonon sensor, resulting in low sensitivity and poor energy resolution. A radiation absorber, in which a high concentration of recombination centers is introduced so that electrons and holes excited by radiation recombine in a short time equal to or shorter than a signal extraction time, is used for the radiation detector. Therefore, the energy given to electron-hole pairs is also converted to phonons, thus improving the sensitivity and energy resolution of the radiation detector. |
