Quasi–dc extraction of 70 keV, 5 A ion beam
- 1 June 1980
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 51 (6), 728-734
- https://doi.org/10.1063/1.1136303
Abstract
An ion source that produces a high energy ion beam in quasi‐dc mode has been fabricated and tested. The significant features of the source are effectively cooled accelerator grids with properly shaped apertures and a carefully cooled douPIGatron plasma generator. To opeate the source quasi‐continuously, the heats dissipated in the accelerator grids and in the back plate of the plasma generator were suppressed below permissible values by attaining low pressure in the arc chamber. Under such condition, a 70 keV, 5 A, 10 s ion beam was obtained repeatedly without any deleterious problems. The measurement by photo beam monitor indicates no change of beam divergence during 10 s. The pressure change in the beam drift region during the pulse has also been investigated.Keywords
This publication has 3 references indexed in Scilit:
- Cooling of extraction electrode of an ion source in long-pulse operationReview of Scientific Instruments, 1979
- Numerical simulation for design of a two-stage acceleration system in a megawatt power ion sourceJournal of Applied Physics, 1978
- Electrode Heat Dissipation Limits on Multiaperture Ion Source PerformanceReview of Scientific Instruments, 1973