Note: Voltage and intensity dependence of the saturation curves of free-air ionization chambers irradiated with chopped synchrotron radiation beams

Journal Article · Sun Jan 15 00:00:00 EST 2012 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.3677330· OSTI ID:22063782

Nariyama, Nobuteru ^[1]

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1. Japan Synchrotron Radiation Research Institute, Light Source and Optics Division, Kouto 1-1-1, Sayo, Hyogo 679-5198 (Japan)

Current saturation characteristics of free-air ionization chambers with electrode gaps of 4.2 and 8.4 mm were investigated using pulsed photon beam obtained by periodically interrupting synchrotron radiation beams with a chopper. Pulsed photon beams of 10 and 15 keV with pulse duration of 2.5 {mu}s and a frequency of 230 Hz were produced by chopping the beam. The measured recombination rate was found to be proportional to the intensity and inversely proportional to the applied voltage.

• OSTI ID: 22063782
• Journal Information: Review of Scientific Instruments, Vol. 83, Issue 1; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
43 PARTICLE ACCELERATORS
AIR
ELECTRIC POTENTIAL
ELECTRODES
IONIZATION CHAMBERS
KEV RANGE 10-100
PHOTON BEAMS
PULSED IRRADIATION
RECOMBINATION
SATURATION
SYNCHROTRON RADIATION