TITLE

Development of an intense negative hydrogen ion source with an external magnetic filter

AUTHOR(S)
Takeiri, Y.; Ando, A.; Kaneko, O.; Oka, Y.; Tsumori, K.; Akiyama, R.; Asano, E.; Kawamoto, T.; Kuroda, T.; Tanaka, M.; Kawakami, H.
PUB. DATE
March 1995
SOURCE
Review of Scientific Instruments;Mar95, Vol. 66 Issue 3, p2541
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Describes the development of an intense negative hydrogen ion source with an external magnetic filter produced by a pair of permanent magnet rows located at 35.4 centimeter separation. Generation of a strong cusp magnetic field for improvement of the plasma confinement; Focus on the structure of the ion source and the experimental results.
ACCESSION #
4289934

 

Related Articles

  • Cesium injection into a large rf-driven hydrogen negative-ion source. Takanashi, T.; Takeiri, Y.; Kaneko, O.; Oka, Y.; Tsumori, K.; Kuroda, T. // Review of Scientific Instruments;Mar96, Vol. 67 Issue 3, p1024 

    Reports on the development of a large radio-frequency hydrogen negative-ion source for a neutral beam injection system for fusion application. Generation of a strong external magnetic filter in front of the plasma electrode; Reduction of optimum bias voltage; Observation of the lowering of the...

  • Effects of external magnetic filter on behaviors of fast primary electrons in a volume negative ion source. Mori, Shigefumi; Fukumasa, Osamu // Review of Scientific Instruments;Feb2008, Vol. 79 Issue 2, p02A526 

    The relationship between enhancement of hydrogen negative ion H-, volume production, and behaviors of fast primary electrons is studied theoretically. Trajectories of fast primary electrons are calculated, including collisional effects with hydrogen molecules. Active region of fast electrons...

  • Fluid Model Analysis of the Distribution of the Negative Ion Density before the Extraction from a Tandem Type of a Plasma Source. St. Lishev, Stiliyan; Shivarova, Antonia P.; Tarnev, Khristo Ts. // AIP Conference Proceedings;9/26/2011, Vol. 1390 Issue 1, p48 

    Unified description of the expansion (through a magnetic filter) and extraction regions, including also the driver, of volume-production based sources of negative hydrogen ions is presented in the study. The model is one-dimensional, developed within the fluid plasma theory. It covers...

  • Negative hydrogen ion source development for large helical device neutral beam injector (invited). Takeiri, Y.; Kaneko, O.; Tsumori, K.; Oka, Y.; Osakabe, M.; Ikeda, K.; Asano, E.; Kawamoto, T.; Akiyama, R. // Review of Scientific Instruments;Feb2000, Vol. 71 Issue 2, p1225 

    Examines development of large-scaled hydrogen negative ion source. Negative ion based neutral beam injector in the large helical device fusion machine; Negative ion acceleration; Electron suppression; Beam steering; Measurement of neutralization efficiency.

  • Study of pulsed discharge operation of volume H- ion source. Michaut, C.; Bacal, M.; Belchenko, Yu. I.; Auvray, J.; Konieczny, C.; Stephan, J. P. // Review of Scientific Instruments;Apr94, Vol. 65 Issue 4, p1207 

    The pulsed operation of a negative ion volume source has been investigated, both with and without a magnetic filter present, under conditions of full-scale acceleration of the extracted negative hydrogen ion beam. This investigation is relevant to the temporal filter concept, which was recently...

  • Monte Carlo simulation of negative ion production in the negative hydrogen ion source. Uematsu, M.; Morishita, T.; Hatayama, A.; Sakurabayashi, T.; Ogasawara, M. // Review of Scientific Instruments;Feb2000, Vol. 71 Issue 2, p883 

    Focuses on development of a three-dimensional numerical simulation code to understand transport phenomena in negative ion sources. Neutral transport code; Negative ion transport code; Effects of the magnetic filter on the extraction probability of surface produced ions.

  • A 100 keV operation of a large vacuum-immersed H[sup -] ion source. Oka, Y.; Kaneko, O.; Takeiri, Y.; Tsumori, K.; ando, A.; Asano, E.; Akiyama, R.; Kawamoto, T.; Kuroda, T. // Review of Scientific Instruments;Mar96, Vol. 67 Issue 3, p1029 

    Reports on the operation of a large vacuum-immersed negative hydrogen ion source on the negative-ion-based neutral beam teststand. Features of the ion source; Density of the plasma in the downstream space; Comparison of the characteristics of two magnetic filters under similar operating conditions.

  • The status of Deutsches Elektronen-Synchroton H[sup -] sources. Peters, J. // Review of Scientific Instruments;Mar96, Vol. 67 Issue 3, p1045 

    Reports on the status of two different types of H[sup -] ion sources at Deutsches Elektronen Synchrotron magnetron. Operating history of the magnetron source; Construction history and extraction system of the radio frequency-driven volume source; Operation of the spectrometer einzel lens...

  • Recovery of cesium in the hydrogen negative ion sources. Belchenko, Yu. I.; Oka, Y.; Kaneko, O.; Takeiri, Y.; Krivenko, A. S.; Osakabe, M.; Tsumori, K.; Asano, E.; Kawamoto, T.; Akiyama, R. // Review of Scientific Instruments;Feb2000, Vol. 71 Issue 2, p741 

    Examines cesium recovery from the polluted layers by additional discharges in the 1/3 scale hydrogen negative ion source for LHD-NBI system. Mechanism of recovery; Ejection of cesium from the underlying enriched layer by the arc and its transport to the surface.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics