A new pulsed cryogenic proton source cooled by liquid helium
- 1 February 1985
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 46 (3) , 249-250
- https://doi.org/10.1063/1.95646
Abstract
A new cryogenic proton source with liquid helium cooling system is presented. The anode is cooled down to about 4.2 K. A hydrogen ice is produced on the surface and used as the ion source. Proton beams of a current density 21 A/cm2 at 200 kV are extracted with good reproducibility. This new ion source is expected to be a proton source without contamination by nonprotonic ions.Keywords
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