Order of magnitude enhancement in neutron emission with deuterium-krypton admixture operation in miniature plasma focus device

Verma, Rishi; Lee, P.; Lee, S.; Springham, S. V.; Tan, T. L.; Rawat, R. S.; Krishnan, M.
September 2008
Applied Physics Letters;9/8/2008, Vol. 93 Issue 10, p101501
Academic Journal
The effect of varied concentrations of deuterium-krypton (D2–Kr) admixture on the neutron emission of a fast miniature plasma focus device was investigated. It was found that a judicious concentration of Kr in D2 can significantly enhance the neutron yield. The maximum average neutron yield of (1±0.27)×104 n/shot for pure D2 filling at 3 mbars was enhanced to (3.14±0.4)×105 n/shot with D2+2% Kr admixture operation, which represents a >30-fold increase. More than an order of magnitude enhancement in the average neutron yield was observed over the broader operating range of 1–4 mbars for D2+2% Kr and D2+5% Kr admixtures.


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