Detection efficiency of thick microchannel plates to 511 keV gamma rays
| Autor: | B.T.A. McKee, A.T. Stewart, J. Vesel |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
Physics
Nuclear and High Energy Physics Microchannel Physics::Instrumentation and Detectors business.industry Astrophysics::High Energy Astrophysical Phenomena Detector Gamma ray Time resolution Glass matrix Positron Optics High Energy Physics::Experiment Microchannel plate detector Atomic physics business Instrumentation Positron annihilation |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 234:191-197 |
| ISSN: | 0168-9002 |
| Popis: | The efficiency of a 11.3 mm thick microchannel plate detector for detecting gamma rays from positron annihilation (511 keV) has been measured as 3.6%. The time resolution was less than 1 ns. Model calculations indicate that a more optimum hole geometry and a higher lead content in the glass matrix could provide an efficiency up to 9% for a 10 mm thick detector. Such detectors, fabricated in large sizes with X − Y readouts, have potential applications such as positron imaging. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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