Novel detection methods for radiation-induced electron-hole pairs.

Nordquist, Christopher Daniel ; Cich, Michael Joseph ; Vawter, Gregory Allen ; Derzon, Mark Steven ; Martinez, Marino John

Sandia National Laboratories

关键词: Energy Resolution;    Photons;    Resonators;    Recommendations;    Recombination;   

DOI  :  10.2172/1008121
RP-ID  :  SAND2010-6426
RP-ID  :  AC04-94AL85000
RP-ID  :  1008121

美国|英语

来源: UNT Digital Library

【 摘 要 】

Most common ionizing radiation detectors typically rely on one of two general methods: collection of charge generated by the radiation, or collection of light produced by recombination of excited species. Substantial efforts have been made to improve the performance of materials used in these types of detectors, e.g. to raise the operating temperature, to improve the energy resolution, timing or tracking ability. However, regardless of the material used, all these detectors are limited in performance by statistical variation in the collection efficiency, for charge or photons. We examine three alternative schemes for detecting ionizing radiation that do not rely on traditional direct collection of the carriers or photons produced by the radiation. The first method detects refractive index changes in a resonator structure. The second looks at alternative means to sense the chemical changes caused by radiation on a scintillator-type material. The final method examines the possibilities of sensing the perturbation caused by radiation on the transmission of a RF transmission line structure. Aspects of the feasibility of each approach are examined and recommendations made for further work.