DocumentCode :
3466226
Title :
Deuterium ion extraction and neutron production from a piezoelectric transformer plasma source
Author :
Baxter, Emily A. ; Kovaleski, Scott D. ; Gall, Brady B. ; VanGordon, James A. ; Norgard, Peter ; Olson, K.M. ; Dale, Gregory E.
Author_Institution :
Electr. & Comput. Eng., Univ. of Missouri, Columbia, MO, USA
fYear :
2013
fDate :
16-21 June 2013
Firstpage :
1
Lastpage :
5
Abstract :
A piezoelectric transformer plasma source (PTPS) is being developed as a plasma ion source for D(d, n) 3He neutron production. The PTPS consists of a lithium niobate piezoelectric disc in a differentially pumped chamber with controlled gas flow from an external source. The PTPS was previously characterized using a range of gas flows, extraction voltages, and aperture geometries. This ion source has been used for preliminary neutron production measurements using a target at high voltage. Ion current measurements are presented for deuterium gas at PTPS internal pressures from 0.5 to 4 Torr, extraction voltages up to 1.5 kV, and a range of duty cycles and operating times. Ion current yields on the order of 10 μA are presented. The PTPS was also operated with a high voltage D.C. source coupled with a deuterium impregnated palladium foil. Preliminary neutron yields are presented.
Keywords :
deuterium; ion sources; neutron production; neutron sources; particle beam extraction; plasma sources; D; aperture geometries; controlled gas flow; deuterium impregnated palladium foil; deuterium ion extraction; differentially pumped chamber; duty cycles; external source; extraction voltages; high voltage DC source; ion current measurements; lithium niobate piezoelectric disc; neutron production; operating times; piezoelectric transformer plasma source; plasma ion source; pressure 0.5 torr to 4 torr; voltage 1.5 kV; Anodes; Apertures; Current measurement; Deuterium; Neutrons; Voltage measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Pulsed Power Conference (PPC), 2013 19th IEEE
Conference_Location :
San Francisco, CA
ISSN :
2158-4915
Type :
conf
DOI :
10.1109/PPC.2013.6627447
Filename :
6627447
Link To Document :
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