A METASTABLE HELIUM ATOM SOURCE DIRECTLY PULSED BY A NOZZLE-SKIMMER DISCHARGE

Authors
YAMAUCHI Y KURAHASHI M KISHIMOTO N
Citation
Y. Yamauchi et al., A METASTABLE HELIUM ATOM SOURCE DIRECTLY PULSED BY A NOZZLE-SKIMMER DISCHARGE, Measurement science & technology, 9(3), 1998, pp. 531-533
Citations number
7
Categorie Soggetti
Instument & Instrumentation",Engineering
Journal title
Measurement science & technology → ACNP
ISSN journal
09570233
Volume
9
Issue
3
Year of publication
1998
Pages
531 - 533
Database
ISI
SICI code
0957-0233(1998)9:3<531:AMHASD>2.0.ZU;2-D
Abstract
The discharge excited atom beam source we designed uses a trigger elec trode between a nozzle and skimmer to generate a metastable helium ato m beam that is directly discharge pulsed. A pulsed discharge current u p to 200 mA maintained between the needle cathode behind the nozzle an d the skimmer anode produced an intense pulsed metastable helium atom beam equivalent to a continuous total flux of 1.7 x 10(15) s(-1) sr(-1 ) with mechanical chopping.