Influence of Krypton Seeding on DD Fusion Neutron Production: Evaluation Methodology for Plasma Focus Optimization

A sub-kilo-Joule plasma focus device (FMPF- 3, 14 kV/235 J) was operated with deuterium–krypton admixtures (of 1, 2 and 5 % Kr by volume) to study the influence of admixture ratio on neutron yield (Yn). Experiments were performed for different insulator sleeve lengths and cathode geometries. Th...

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Main Authors: Talebitaher, A., Lee, S., Kalaiselvi, S. M. P., Verma, R., Lee, P., Springham, S. V., Tan, T. L., Rawat, R. S.
Format: Article
Language:English
Published: Springer US 2015
Subjects:
Online Access:http://eprints.intimal.edu.my/227/
http://eprints.intimal.edu.my/227/7/Influence%20of%20Krypton%20Seeding%20on%20DD%20Fusion%20Neutron%20Production.pdf
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author Talebitaher, A.
Lee, S.
Kalaiselvi, S. M. P.
Verma, R.
Lee, P.
Springham, S. V.
Tan, T. L.
Rawat, R. S.
author_facet Talebitaher, A.
Lee, S.
Kalaiselvi, S. M. P.
Verma, R.
Lee, P.
Springham, S. V.
Tan, T. L.
Rawat, R. S.
author_sort Talebitaher, A.
building INTI Institutional Repository
collection Online Access
description A sub-kilo-Joule plasma focus device (FMPF- 3, 14 kV/235 J) was operated with deuterium–krypton admixtures (of 1, 2 and 5 % Kr by volume) to study the influence of admixture ratio on neutron yield (Yn). Experiments were performed for different insulator sleeve lengths and cathode geometries. The results reveal that for a carefully optimized electrode geometry the highest average neutron yield is obtained with pure deuterium as the operating gas, whereas krypton seeding leads to a reduction in Yn. We argue that the electrode geometry and electrical coupling play critical roles in determining the influence of gas admixtures; and that for an optimized plasma focus device D2-Kr admixtures may give little or no neutron yield enhancement relative to pure D2 operation and so the admixture operation is an evaluation methodology to determine the level of optimization of device geometry.
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spelling intimal-2272016-09-15T03:19:16Z http://eprints.intimal.edu.my/227/ Influence of Krypton Seeding on DD Fusion Neutron Production: Evaluation Methodology for Plasma Focus Optimization Talebitaher, A. Lee, S. Kalaiselvi, S. M. P. Verma, R. Lee, P. Springham, S. V. Tan, T. L. Rawat, R. S. QC Physics A sub-kilo-Joule plasma focus device (FMPF- 3, 14 kV/235 J) was operated with deuterium–krypton admixtures (of 1, 2 and 5 % Kr by volume) to study the influence of admixture ratio on neutron yield (Yn). Experiments were performed for different insulator sleeve lengths and cathode geometries. The results reveal that for a carefully optimized electrode geometry the highest average neutron yield is obtained with pure deuterium as the operating gas, whereas krypton seeding leads to a reduction in Yn. We argue that the electrode geometry and electrical coupling play critical roles in determining the influence of gas admixtures; and that for an optimized plasma focus device D2-Kr admixtures may give little or no neutron yield enhancement relative to pure D2 operation and so the admixture operation is an evaluation methodology to determine the level of optimization of device geometry. Springer US 2015 Article PeerReviewed text en http://eprints.intimal.edu.my/227/7/Influence%20of%20Krypton%20Seeding%20on%20DD%20Fusion%20Neutron%20Production.pdf Talebitaher, A. and Lee, S. and Kalaiselvi, S. M. P. and Verma, R. and Lee, P. and Springham, S. V. and Tan, T. L. and Rawat, R. S. (2015) Influence of Krypton Seeding on DD Fusion Neutron Production: Evaluation Methodology for Plasma Focus Optimization. Journal of Fusion Energy. pp. 1-8. ISSN 1572-9591 10.1007/s10894-015-0041-2
spellingShingle QC Physics
Talebitaher, A.
Lee, S.
Kalaiselvi, S. M. P.
Verma, R.
Lee, P.
Springham, S. V.
Tan, T. L.
Rawat, R. S.
Influence of Krypton Seeding on DD Fusion Neutron Production: Evaluation Methodology for Plasma Focus Optimization
title Influence of Krypton Seeding on DD Fusion Neutron Production: Evaluation Methodology for Plasma Focus Optimization
title_full Influence of Krypton Seeding on DD Fusion Neutron Production: Evaluation Methodology for Plasma Focus Optimization
title_fullStr Influence of Krypton Seeding on DD Fusion Neutron Production: Evaluation Methodology for Plasma Focus Optimization
title_full_unstemmed Influence of Krypton Seeding on DD Fusion Neutron Production: Evaluation Methodology for Plasma Focus Optimization
title_short Influence of Krypton Seeding on DD Fusion Neutron Production: Evaluation Methodology for Plasma Focus Optimization
title_sort influence of krypton seeding on dd fusion neutron production: evaluation methodology for plasma focus optimization
topic QC Physics
url http://eprints.intimal.edu.my/227/
http://eprints.intimal.edu.my/227/
http://eprints.intimal.edu.my/227/7/Influence%20of%20Krypton%20Seeding%20on%20DD%20Fusion%20Neutron%20Production.pdf