Published February 1, 1985 | Version v1
Journal article

New pulsed cryogenic proton source cooled by liquid helium

  • 1. Department of Energy Sciences, The Graduate School at Nagatsuta, Tokyo Institute of Technology, Nagatsuta 4259, Midori-ku, Yokohama 227, Japan

Description

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

Additional details

Publishing Information

Journal Title
Appl. Phys. Lett.
Journal Volume
46
Journal Issue
3
Series
Appl. Phys. Lett.
Journal Page Range
249-250
ISSN
0003-6951