Influence of insulator contamination by copper evaporation on neutron yield in a low-energy plasma focus

作者: M Zakaullah , Imtiaz Ahmed , Nasir Rashid , G Murtaza , M M Beg

DOI: 10.1088/0741-3335/35/6/003

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摘要: Deterioration of neutron yield in a low-energy plasma focus operated by single 32 mu F, 15 V, (3.6 kJ) capacitor is observed. When the cumulative discharge energy over successive shots across an insulator sleeve approaches 1.6 MJ, from device starts deteriorating. The sleeve, when examined, found to have approximately 3 m thick layer copper deposit. contaminated surface appears rough with grain-type structure. It therefore concluded that degradation occurs due Cu deposit on surface. situation may improve if low-sputtering-rate conductors are employed for electrodes device.

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