Development of portable pulsed neutron generators utilizing a D-T or D-D fusion reaction

Citation
K. Nishimura et al., Development of portable pulsed neutron generators utilizing a D-T or D-D fusion reaction, FUSION TECH, 39(3), 2001, pp. 1174-1181
Citations number
10
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Nuclear Emgineering
Journal title
FUSION TECHNOLOGY
ISSN journal
0748-1896 → ACNP
Volume
39
Issue
3
Year of publication
2001
Pages
1174 - 1181
Database
ISI
SICI code
0748-1896(200105)39:3<1174:DOPPNG>2.0.ZU;2-I
Abstract
Prototypes of sealed neutron tubes in a D-Tor D-D fusion reaction for loggi ng while drilling (LWD) were developed; then operational tests were perform ed to check their functional properties. One of the prototypes passed most of the specified conditions for using LWD. Further studies were needed to p ut a sealed neutron tube into practical use. For applications to other fiel ds, such as an in situ calibration source for neutron detector efficiencies and an in situ calibration source for fusion systems, a sealed neutron tub e is needed to have higher-intensity neutron output and a long life. Thus, the performance of the ion source used in the neutron tube is improved to o btain high gas utilization efficiencies or low-pressure operation with high ionization efficiencies. The characteristics of the new ion sources used i n the foregoing sealed neutron tube are discussed in terms of preliminary t ests. The aforementioned performances are obtained.