University of Jyväskylä | JYX Digital Repository

  • English  | Give feedback |
    • suomi
    • English
 
  • Login
JavaScript is disabled for your browser. Some features of this site may not work without it.
View Item 
  • JYX
  • Artikkelit
  • Matemaattis-luonnontieteellinen tiedekunta
  • View Item
JYX > Artikkelit > Matemaattis-luonnontieteellinen tiedekunta > View Item

Photoelectron emission experiments with ECR-driven multi-dipolar negative ion plasma source

ThumbnailPublisher's PDF
View/Open
1.2Mb

Downloads:  
Show download detailsHide download details  
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
Published in
AIP Conference Proceedings
Authors
Laulainen, Janne |
Kalvas, Taneli |
Koivisto, Hannu |
Kronholm, Risto |
Tarvainen, Olli |
Aleiferis, S. |
Svarnas, P.
Editors
Faircloth, Dan
Date
2017
Discipline
KiihdytinlaboratorioAccelerator Laboratory
Copyright
Copyright © 2017, AIP Publishing LLC. Published in this repository with the kind permission of the publisher.

 
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.
Publisher
AIP Publishing
Parent publication ISBN
978-0-7354-1549-2
Conference
International Symposium on Negative Ions, Beams and Sources
Is part of publication
NIBS 2016 : Fifth International Symposium on Negative Ions, Beams and Sources
ISSN Search the Publication Forum
0094-243X
Keywords
plasma sources ECR ion sources photoelectrons emissio (fysiikka) plasmatekniikka syklotronit elektronit
DOI
https://doi.org/10.1063/1.4995718
URI

http://urn.fi/URN:NBN:fi:jyu-201709043652

Publication in research information system

https://converis.jyu.fi/converis/portal/detail/Publication/27188005

Metadata
Show full item record
Collections
  • Matemaattis-luonnontieteellinen tiedekunta [4441]

Related items

Showing items with similar title or keywords.

  • Photoelectron emission induced by low temperature hydrogen plasmas 

    Laulainen, Janne; Kalvas, Taneli; Koivisto, Hannu; Kronholm, Risto; Tarvainen, Olli (AIP Publishing, 2018)
    Experimental results of low temperature hydrogen plasma induced photoelectron emission measurements comparing two different plasma heating methods are summarized. By exposing the samples to the vacuum ultraviolet radiation ...
  • VUV emission spectroscopy combined with H− density measurements in the ion source Prometheus I 

    Aleiferis, S.; Laulainen, Janne; Svarnas, P.; Tarvainen, Olli; Bacal, M.; Béchu, S. (AIP Publishing, 2017)
    “Prometheus I” is a volume H− negative ion source, driven by a network of dipolar electron cyclotron resonance (ECR; 2.45 GHz) modules. The vacuum-ultraviolet (VUV) emission spectrum of low-temperature hydrogen plasmas may ...
  • Studying the double-frequency heating mode in ECRIS plasma using Kα diagnostics 

    Sakildien, Muneer; Tarvainen, Olli; Kronholm, Risto; Kalvas, Taneli; Jones, Pete; Koivisto, Hannu (AIP Publishing, 2018)
    Despite the success of double-heating frequency in enhancing high charge state production, the underlying physics remains poorly understood. By combining three different diagnostic techniques i.e. Kα emission, optical ...
  • Characteristic Kα emission of electron cyclotron resonance ion source plasmas 

    Sakieldien, Moenir (University of Jyväskylä, 2018)
    This thesis presents the results of an investigation of the volumetric Kα emission rate/inner shell ionization rate from an Electron Cyclotron Resonance Ion Source (ECRIS) plasma tuned predominantly for high charge state ...
  • Recent improvements of the LPSC charge breeder 

    Angot, Julien; Thuillier, Thomas; Tarvainen, Olli; Baylac, Maud; Jacob, Josua; Lamy, Thierry; Migliore, Myriam; Sole, Patrick (AIP Publishing, 2018)
    LPSC has developed the PHOENIX electron cyclotron resonance Charge Breeder since 2000. The performances have been improved over time acting on the 1+ and N+ beam optics, the base vacuum and the 1+ beam injection. A new ...
  • Browse materials
  • Browse materials
  • Articles
  • Conferences and seminars
  • Electronic books
  • Historical maps
  • Journals
  • Tunes and musical notes
  • Photographs
  • Presentations and posters
  • Publication series
  • Research reports
  • Research data
  • Study materials
  • Theses

Browse

All of JYXCollection listBy Issue DateAuthorsSubjectsPublished inDepartmentDiscipline

My Account

Login

Statistics

View Usage Statistics
  • How to publish in JYX?
  • Self-archiving
  • Publish Your Thesis Online
  • Publishing Your Dissertation
  • Publication services

Open Science at the JYU
 
Data Protection Description

Accessibility Statement

Unless otherwise specified, publicly available JYX metadata (excluding abstracts) may be freely reused under the CC0 waiver.
Open Science Centre