Title :
D(d,n) neutrons induced by ions from explosive evaporation of Ta anode deuterium occluded. X-ray mode of plasma focus discharges
Author :
Filippov, N.V. ; Filippova, N.V. ; Brzosko, J.R. ; Karakin, M.A. ; Krauz, V.I. ; Brzosko, J.S.
Author_Institution :
Kurchatov (I.V.) Inst. of Atomic Energy, Moscow, Russia
Abstract :
Summary form only given. Neutron yield, Y/sub n/=10/sup 7/-10/sup 8/ was observed when PF at SRRC (Filippov-type; 0.3 Torr of Ar; 50 kJ; 12 kV) was fired in the X-ray mode. Before the experiment, the Ta anode was immersed in D/sub 2/ and due to occlusion, the atomic ratio 2(Ta):1(D) was obtained. After a few shots in pure Ar, neutrons do appear and hold their yield during the entire experiment. Y/sub n/ was detected with Ag-activation counters (end-off; 0/spl deg/) and Time-of-Flight, ToF, [X(E/sub x//spl ges/0.2 MeV) and n(E/sub n/=2.45 MeV)] was measured with fast plastic detectors (/spl les/2 ns), behind collimators aimed for the chamber roof (side-off; 90/spl deg/) and Pb-shield (5 cm). Ion energy, E/sub D+/, was defined from measured delay, T, between X and n signals to be: T=ToF(D/sup +/)+ToF(n)-ToF(X) Experiments were done for different combinations of ion bases and neutron bases.
Keywords :
plasma focus; /sup 2/H(d,n) neutrons; 0.3 torr; 12 kV; 23 to 251 cm; 50 kJ; Ag-activation counters; D occluded Ta anode; Filippov-type plasma focus; Pb-shield; Ta-D; X-ray mode; explosive evaporation; fast plastic detectors; ion bases; ion energy; ion induced neutrons; neutron bases; neutron yield; plasma focus discharges; time-of-flight spectra; Anodes; Argon; Collimators; Counting circuits; Delay; Detectors; Energy measurement; Explosives; Neutrons; Plastics;
Conference_Titel :
Plasma Science, 1996. IEEE Conference Record - Abstracts., 1996 IEEE International Conference on
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-3322-5
DOI :
10.1109/PLASMA.1996.551456
