A short-pulsed compact supersonic helium beam source for plasma diagnostics
- 1 March 2006
- journal article
- research article
- Published by Taylor & Francis in Plasma Devices and Operations
- Vol. 14 (1) , 81-89
- https://doi.org/10.1080/10519990500517961
Abstract
A short-pulsed (less than 1 ms) compact supersonic helium beam source has been developed for plasma diagnostics purposes. The beam has been characterized experimentally and the results compared with calculations from a simple model that takes into account interaction between the supersonic beam and gas in the region between the nozzle and the skimmer. For a 200 μs driving pulse, a beam of density N > 1 × 1018 m−3 on the axis, a width of D ≈ 1 cm at a distance of 30 cm from the nozzle and a velocity v ≈ 1.8 × 103 m s−1 has been achieved.Keywords
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