Photoelectron emission experiments with ECR-driven multi-dipolar negative ion plasma source
Abstract
Photoelectron emission measurements have been performed using a 2.45 GHz ECR-driven multi-dipolar plasma source in a low pressure hydrogen discharge. Photoelectron currents induced by light emitted from ECR zone and H− production region are measured from Al, Cu, Mo, Ta, and stainless steel (SAE 304) surfaces as a function of microwave power and neutral hydrogen pressure. The total photoelectron current from the plasma chamber wall is estimated to reach values up to 1 A for 900 W of injected microwave power. It is concluded that the volumetric photon emission rate in wavelength range relevant for photoelectron emission is a few times higher in arc discharge.
Main Authors
Format
Conferences
Conference paper
Published
2017
Series
Subjects
Publication in research information system
Publisher
AIP Publishing
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-201709043652Use this for linking
Parent publication ISBN
978-0-7354-1549-2
Review status
Peer reviewed
ISSN
0094-243X
DOI
https://doi.org/10.1063/1.4995718
Conference
International Symposium on Negative Ions, Beams and Sources
Language
English
Published in
AIP Conference Proceedings
Is part of publication
NIBS 2016 : Fifth International Symposium on Negative Ions, Beams and Sources
Citation
- Laulainen, J., Kalvas, T., Koivisto, H., Kronholm, R., Tarvainen, O., Aleiferis, S., & Svarnas, P. (2017). Photoelectron emission experiments with ECR-driven multi-dipolar negative ion plasma source. In D. Faircloth (Ed.), NIBS 2016 : Fifth International Symposium on Negative Ions, Beams and Sources (Article 020012). AIP Publishing. AIP Conference Proceedings, 1869. https://doi.org/10.1063/1.4995718
License
CopyrightCopyright © 2017, AIP Publishing LLC. Published in this repository with the kind permission of the publisher.