One-ampere, 80-keV, long pulse H− source and accelerator
- 1 May 1986
- journal article
- conference paper
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 57 (5) , 831-839
- https://doi.org/10.1063/1.1138820
Abstract
The design and operation of the surface‐conversion H− ion source and the 80‐keV preaccelerator are discussed. Both the source and the preaccelerator, together with the transverse field focusing (TFF) matching and pumping beam transport section (presently being tested), will be parts of a negative‐ion‐based neutral beam line. Results from testing the source and preaccelerator have shown that the system can accelerate more than 1 A of H− ions at 80 keV continuously; the preaccelerator operates at an optimum perveance which matches the one predicted by WOLF code computer simulation. Deconditioning of the preaccelerator due to cesium contamination is a critical problem. A method has been developed to cope with this problem.Keywords
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