High contrast radiography using a small dense plasma focus

Journal Article · Mon Feb 04 00:00:00 EST 2008 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2840191· OSTI ID:21016308

Castillo, F; Gamboa-deBuen, I; Herrera, J J. E.; Rangel, J ^[1]; Villalobos, S ^[2]

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1. Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, A.P. 70-543, Ciudad Universitaria, 04511 Coyoacan, D.F. (Mexico)
2. Facultad de Ingenieria, Universidad Nacional Autonoma de Mexico, 04510 Mexico, D.F. (Mexico)

Radiographs are obtained with a small (4.6 kJ) dense plasma focus machine, using the x-rays which cross a 300 {mu}m aluminum window on the axis. Contrast is improved by inserting an iron needle on the tip of the electrode. Measurements with TLD-100 dosimeters have shown the average dose to increase from 0.077{+-}0.006 mGy/shot, when a hollow cathode is used, to 0.11{+-}0.01 mGy/shot, with the needle. The spectrum is estimated using aluminum filters and the effective equivalent energy is found to be in the range of 20-25 keV.

• OSTI ID: 21016308
• Journal Information: Applied Physics Letters, Vol. 92, Issue 5; Other Information: DOI: 10.1063/1.2840191; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
DOSEMETERS
HOLLOW CATHODES
IMAGES
IRON
KEV RANGE 10-100
PLASMA FOCUS
X-RAY RADIOGRAPHY