Plasma focus as an efficient x-ray source for radiography.

G.  Murtaza; S.  Hussain; M.  Zakaullah; A.  Waheed

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Plasma focus as an efficient x-ray source for radiography.

Author(s)

G. Murtaza Department of Physics, Quaid-i-Azam University Islamabad, Pakistan

S. Hussain Department of Physics, Quaid-i-Azam University Islamabad, Pakistan

M. Zakaullah Department of Physics, Quaid-i-Azam University Islamabad, Pakistan

A. Waheed Department of Physics, Quaid-i-Azam University Islamabad, Pakistan

Abstract

X-ray emission from a low energy Mather type plasma focus device operated by a 9 µF capacitor bank, charged at 20 kV and giving peak discharge current of about 175 kA by using copper tapered anode with lead insert at the tip is studied. Quantrad Si pin diodes with differential filtering are employed as time-resolved X-ray detectors whereas a multipinhole camera is used for time-integrated analysis. X-ray flux in different energy windows is measured as a function of hydrogen filling pressure. The highest value of energy integrated X-ray flux is found to be 2.17±0.09 J/sr. The maximum X-ray emission in 4p - geometry is estimated to be 27.25±1.13 J and corresponding wall plug efficiency for X-ray generation is 1.51%. A set of experimental images to demonstrate the feasibility of the present PF device as an efficient X-ray source for radiography is presented.

Publication Details

Page(s) 94-106

DOI DOI not available

Published Journal: Islamabad Journal of Science, Volume: 14, Issue: 1, Year: 2004

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