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Soft X-Ray Emission Optimization Study with Nitrogen Gas in a 1.2 kJ Plasma Focus

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Abstract

Measurement of soft x-ray emission from a low-energy plasma focus operated with nitrogen within the pressure range of 0.1–1.0 mbar is presented. The x-rays are detected by using an assembly of Quantrad Si PIN-diodes with differential filtering and with a multipinhole camera. In the 1.0–1.3 keV and 1.0–1.5 keV windows, the x-ray yield in 4π geometry is 1.03 J and 14.0 J, respectively, at a filling pressure of 0.25 mbar and the corresponding efficiencies are 0.04% and 1.22%. The total x-ray emission in 4π geometry is estimated at 21.8 J, which corresponds to the system efficiency of about 1.9%. The soft x-ray emission is found dominantly as a result of electron beam activity on the anode tip, which is confirmed by the images recorded by a pinhole camera.

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Authors and Affiliations

  1. Department of Physics, Quaid-i-Azam University, 45320, Islamabad, Pakistan

    M. Shafiq, S. Hussain, M. Sharif & M. Zakaullah

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  1. M. Shafiq
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  2. S. Hussain
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  3. M. Sharif
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  4. M. Zakaullah
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Shafiq, M., Hussain, S., Sharif, M. et al. Soft X-Ray Emission Optimization Study with Nitrogen Gas in a 1.2 kJ Plasma Focus. Journal of Fusion Energy 20, 113–115 (2001). https://doi.org/10.1023/A:1021350725317

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  • DOI: https://doi.org/10.1023/A:1021350725317

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