A Versatile pocket PIG ion source with permanent magnet
Abstract
A versatile pocket PIG ion source with permanent magnet is described in this paper. The source can produce both gas or metal and some negative ion beams. Normally 1-2 mA gas ion beams can be extracted at 40 W discharge power. Using Ar as auxiliary gas, tens of μA of solid or metal ions from cathode material are produced by cathode sputtering. The negative ions of some elements with larger electron affinity can be extracted from the source directly, so far using LaB 6 as cathode, more than 50 μA of H -, 1-2 mA of O - and F - ion beams have been extracted at 15-20 kV extraction voltage, the power consumption are normally less than 40, 50 and 100 W, respectively.
- Publication:
-
Nuclear Instruments and Methods in Physics Research B
- Pub Date:
- April 1996
- DOI:
- 10.1016/0168-583X(95)01296-6
- Bibcode:
- 1996NIMPB.111..148Y