Deconvolving the temporal response of photoelectric x-ray detectors for the diagnosis of pulsed radiations

Based on the conjugate gradient method, a simple algorithm is presented for deconvolving the temporal response of photoelectric x-ray detectors (XRDs) to reconstruct the resolved time-dependent x-ray fluxes. With this algorithm, we have studied the impact of temporal response of XRD on the radiation...

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Bibliographic Details
Published in:Review of scientific instruments 2013-09, Vol.84 (9), p.093508-093508
Main Authors: Zou, Shiyang, Song, Peng, Guo, Liang, Pei, Wenbing
Format: Article
Language:English
Subjects:
ALGORITHMS
DIAGNOSIS
FLUCTUATIONS
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
LASERS
PULSES
RADIATION FLUX
TIME DEPENDENCE
X RADIATION
X-RAY DETECTION
X-RAY DIFFRACTION
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Summary:Based on the conjugate gradient method, a simple algorithm is presented for deconvolving the temporal response of photoelectric x-ray detectors (XRDs) to reconstruct the resolved time-dependent x-ray fluxes. With this algorithm, we have studied the impact of temporal response of XRD on the radiation diagnosis of hohlraum heated by a short intense laser pulse. It is found that the limiting temporal response of XRD not only postpones the rising edge and peak position of x-ray pulses but also smoothes the possible fluctuations of radiation fluxes. Without a proper consideration of the temporal response of XRD, the measured radiation flux can be largely misinterpreted for radiation pulses of a hohlraum heated by short or shaped laser pulses.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4821984