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Space-Charge Effects in a Gas Detector
Author(s) -
D. D. Ryutov
Publication year - 2010
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/993724
Subject(s) - photoelectric effect , detector , afterglow , space charge , atomic physics , physics , ion , aperture (computer memory) , charge (physics) , electron , energy (signal processing) , space (punctuation) , plasma , optics , nuclear physics , computational physics , astronomy , particle physics , quantum mechanics , computer science , gamma ray burst , acoustics , operating system
Discussion of space-charge effects in a photoluminescence cell that will be used as a nondisruptive total energy monitor at the LCLS facility is presented. Regimes where primary photoelectrons will be confined within the X-ray beam aperture are identified. Effects of the space-charge on the further evolution of the electron and ion populations are discussed. Parameters of the afterglow plasma are evaluated. Conditions under which the detector output will be proportional to the pulse energy are defined.

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