Hard X-ray dosimetry of a plasma focus suitable for industrial radiography

Dosimetric measurements of the hard X-ray emission by a small-chamber 4.7kJ Mather-type plasma focus device capable of producing neat radiographs of metallic objects, were carried out with a set of thermoluminescent detectors TLD 700 (LiF:Mg,Ti). Measurements of the hard X-ray dose dependence with t...

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Veröffentlicht in:Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2018-04, Vol.145, p.39-42
Hauptverfasser: Knoblauch, P., Raspa, V., Di Lorenzo, F., Clausse, A., Moreno, C.
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Sprache:eng
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Zusammenfassung:Dosimetric measurements of the hard X-ray emission by a small-chamber 4.7kJ Mather-type plasma focus device capable of producing neat radiographs of metallic objects, were carried out with a set of thermoluminescent detectors TLD 700 (LiF:Mg,Ti). Measurements of the hard X-ray dose dependence with the angular position relative to the electrodes axis, are presented. The source-detector distance was changed in the range from 50 to 100cm, and the angular positions were explored between ± 70°, relative to the symmetry axis of the electrodes. On-axis measurements show that the X-ray intensity is uniform within a half aperture angle of 6°, in which the source delivers an average dose of (1.5 ± 0.1)mGy/sr per shot. Monte Carlo calculations suggest that the energy of the electron beam responsible for the X-ray emission ranges 100–600keV. •The angular dependence of the x-ray dose of a plasma focus is measured.•The average dose resulted 1.5mGy/sr per shot.•A narrow beam of small aperture angle was experimentally determined.•Monte Carlo calculations suggest energies of the associated electrons of 100–600keV.
ISSN:0969-806X
1879-0895
DOI:10.1016/j.radphyschem.2017.12.014