Effective hard x-ray spectrum of a tabletop Mather-type plasma focus optimized for flash radiography of metallic objects

Journal Article · Sat Dec 15 00:00:00 EST 2007 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.2822449· OSTI ID:21057550

Raspa, V; Moreno, C; Sigaut, L; Clausse, A ^[1]

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1. Departamento de Fisica, FCEyN-UBA, PLADEMA-CNEA, and INFIP-CONICET, Pab. 1, Ciudad Universitaria (1428) Buenos Aires (Argentina)

The effective spectrum of the hard x-ray output of a Mather-type tabletop plasma focus device was determined from attenuation data on metallic samples using commercial radiographic film coupled to a Gd{sub 2}O{sub 2}S:Tb phosphor intensifier screen. It was found that the radiation has relevant spectral components in the 40-150 keV range, with a single maximum around 60-80 keV. The radiation output allows for 50 ns resolution, good contrast, and introspective imaging of metallic objects even through metallic walls. A numerical estimation of the induced voltage on the focus during the compressional stage is briefly discussed.

• OSTI ID: 21057550
• Journal Information: Journal of Applied Physics, Vol. 102, Issue 12; Other Information: DOI: 10.1063/1.2822449; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ELECTRIC POTENTIAL
HARD X RADIATION
KEV RANGE 10-100
KEV RANGE 100-1000
PLASMA
PLASMA FOCUS
PLASMA FOCUS DEVICES
X-RAY SOURCES