Scintillator Detectors for Scanning Transmission X-ray Microscopes at the Advanced Light Source

The choice of x-ray detectors presents a challenge for scanning transmission x-ray microscopes (STXM). The ultimate detector for the ALS STXMs should have a very high efficiency over a wide energy range, single photon counting capabilities up to 1GHz, high rejection of red laser light, fast response...

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Bibliographic Details
Main Authors: Fakra, S, Kilcoyne, A L D, Tyliszczak, T
Format: Conference Proceeding
Language:English
Subjects:
ADVANCED LIGHT SOURCE
ATMOSPHERIC PRESSURE
EFFICIENCY
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
LIGHT TRANSMISSION
LUMINESCENCE
MICROSCOPES
MICROSCOPY
MONOCRYSTALS
PHOSPHORS
PHOTOMULTIPLIERS
PHOTONS
SCINTILLATION COUNTERS
SYNCHROTRON RADIATION
VISIBLE RADIATION
X RADIATION
X-RAY DETECTION
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Summary:The choice of x-ray detectors presents a challenge for scanning transmission x-ray microscopes (STXM). The ultimate detector for the ALS STXMs should have a very high efficiency over a wide energy range, single photon counting capabilities up to 1GHz, high rejection of red laser light, fast response, and work in both vacuum and at atmospheric pressure. The results of an investigation using a photomultiplier tube (PMT) with a number of different scintillators are presented. The PMT is used in photon counting and analog modes. Scintillators used for this study include commercially available phosphor powders and various single crystals.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.1757959