Synchrotron characterization of high-Z, current-mode x-ray detectors.
Rev Sci Instrum
; 91(2): 023509, 2020 Feb 01.
Article
em En
| MEDLINE
| ID: mdl-32113404
ABSTRACT
Fast x-ray detectors are critical tools in pulsed power and fusion applications, where detector impulse response of a nanosecond or better is often required. Semiconductor detectors can create fast, sensitive devices with extensive operational flexibility. There is typically a trade-off between detector sensitivity and speed, but higher atomic number absorbers can increase hard x-ray absorption without increasing the charge collection time, provided carriers achieve high velocity. This paper presents x-ray pulse characterization conducted at the Advanced Photon Source of x-ray absorption efficiency and temporal impulse response of current-mode semiconductor x-ray detectors composed of Si, GaAs, and CdTe.
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MEDLINE
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En
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2020
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Article