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Effect of Cathode Designs on Radiation Emission of Compact Diode (CD) Device

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Abstract

A comparative study on the radiation emission such as X-ray yield and efficiency has been carried out in compact diode device. Two different designs of cathode having sharp-edged razor blade (of 0.5 mm thickness with width 2 mm) and a sewing machine needle (of 0.5 mm diameter at tip with length of 39 mm) have been tested for this study. The radiation emission (X-ray yield) was determined by employing two set of PIN diodes at fixed positions. The maximum X-ray yield depends on cathode designs and electrodes separation in few mm. The yield of X-ray is small in the case of sharp-edged razor blade cathode than the sewing machine needle cathode. The X-ray yield, measured by 4π-geometry, shows its dependence on the cathode designs. The maximum X-ray yield is found to be 939.2 ± 65.7 mJ with efficiency of 0.4142 ± 0.0289%. This study indicates that the compact diode device could be optimized to a great extent for optimal X-ray yield by using an appropriate cathode design.

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Acknowledgments

This work was partially supported by Higher Education Commission and Pakistan Science Foundation (PSF) Project No. PSF/R&D/C-QU/Phys (199). Author also acknowledges the Federal Urdu University of Arts, Science & Technology (FUUAST) Islamabad Pakistan regarding the financial support for higher studies in University of Malaya (UM) Kuala Lumpur Malaysia.

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Authors and Affiliations

  1. Plasma Research Laboratory, Department of Physics, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia

    Muhammad Zubair Khan & Seong Ling Yap

  2. Department of Physics, Federal Urdu University of Arts, Science and Technology, Islamabad, 45320, Pakistan

    Muhammad Zubair Khan

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

    Muhammad Zubair Khan, Muhammad Afzal Khan & Muhammad Zakaullah

  4. Centre of Advance Studies of Physics, Government College University, Lahore, Lahore, Pakistan

    Attiq-ur-Rehman

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  1. Muhammad Zubair Khan
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  2. Seong Ling Yap
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  3. Muhammad Afzal Khan
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  4. Attiq-ur-Rehman
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  5. Muhammad Zakaullah
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Correspondence to Muhammad Zubair Khan.

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Khan, M.Z., Yap, S.L., Khan, M.A. et al. Effect of Cathode Designs on Radiation Emission of Compact Diode (CD) Device. J Fusion Energ 32, 34–41 (2013). https://doi.org/10.1007/s10894-012-9519-3

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  • DOI: https://doi.org/10.1007/s10894-012-9519-3

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