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Title: Hard disk drive based microsecond x-ray chopper for characterization of ionization chambers and photodiodes

Abstract

A fast X-ray chopper capable of producing ms long X-ray pulses with a typical rise time of few μs was realized. It is ideally suited to investigate the temporal response of X-ray detectors with response times of the order of μs to ms, in particular, any kind of ionization chambers and large area photo diodes. The drive mechanism consists of a brushless DC motor and driver electronics from a common hard disk drive, keeping the cost at an absolute minimum. Due to its simple construction and small dimensions, this chopper operates at home lab based X-ray tubes and synchrotron radiation sources as well. The dynamics of the most important detectors used in time resolved X-ray absorption spectroscopy, namely, ionization chambers and Passivated Implanted Planar Silicon photodiodes, were investigated in detail. The results emphasize the applicability of this X-ray chopper.

Authors:
; ;  [1]
  1. Bergische Universität Wuppertal, Gaußstraße 20, Wuppertal 42119 (Germany)
Publication Date:
OSTI Identifier:
22392429
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 3; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ABSORPTION SPECTROSCOPY; MAGNETIC DISKS; MOTORS; PHOTODIODES; PULSE RISE TIME; SILICON; SYNCHROTRON RADIATION SOURCES; TIME RESOLUTION; X RADIATION; X-RAY SPECTROSCOPY; X-RAY TUBES

Citation Formats

Müller, O., E-mail: o.mueller@uni-wuppertal.de, Lützenkirchen-Hecht, D., and Frahm, R. Hard disk drive based microsecond x-ray chopper for characterization of ionization chambers and photodiodes. United States: N. p., 2015. Web. doi:10.1063/1.4913900.
Müller, O., E-mail: o.mueller@uni-wuppertal.de, Lützenkirchen-Hecht, D., & Frahm, R. Hard disk drive based microsecond x-ray chopper for characterization of ionization chambers and photodiodes. United States. doi:10.1063/1.4913900.
Müller, O., E-mail: o.mueller@uni-wuppertal.de, Lützenkirchen-Hecht, D., and Frahm, R. Sun . "Hard disk drive based microsecond x-ray chopper for characterization of ionization chambers and photodiodes". United States. doi:10.1063/1.4913900.
@article{osti_22392429,
title = {Hard disk drive based microsecond x-ray chopper for characterization of ionization chambers and photodiodes},
author = {Müller, O., E-mail: o.mueller@uni-wuppertal.de and Lützenkirchen-Hecht, D. and Frahm, R.},
abstractNote = {A fast X-ray chopper capable of producing ms long X-ray pulses with a typical rise time of few μs was realized. It is ideally suited to investigate the temporal response of X-ray detectors with response times of the order of μs to ms, in particular, any kind of ionization chambers and large area photo diodes. The drive mechanism consists of a brushless DC motor and driver electronics from a common hard disk drive, keeping the cost at an absolute minimum. Due to its simple construction and small dimensions, this chopper operates at home lab based X-ray tubes and synchrotron radiation sources as well. The dynamics of the most important detectors used in time resolved X-ray absorption spectroscopy, namely, ionization chambers and Passivated Implanted Planar Silicon photodiodes, were investigated in detail. The results emphasize the applicability of this X-ray chopper.},
doi = {10.1063/1.4913900},
journal = {Review of Scientific Instruments},
number = 3,
volume = 86,
place = {United States},
year = {Sun Mar 15 00:00:00 EDT 2015},
month = {Sun Mar 15 00:00:00 EDT 2015}
}