TITLE

Suppression of accelerated electrons in a high-current large negative ion source

AUTHOR(S)
Takeiri, Y.; Oka, Y.; Osakabe, M.; Tsumori, K.; Kaneko, O.; Takanashi, T.; Asano, E.; Kawamoto, T.; Akiyama, R.; Kuroda, T.
PUB. DATE
May 1997
SOURCE
Review of Scientific Instruments;May97, Vol. 68 Issue 5, p2003
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Discusses the suppression of accelerated electrons in a high-current large negative ion source. Design of the external filter type large negative ion source; Grid configuration of the accelerator; Thermal load measurement by water calorimetry; Improvement of the acceleration efficiency; Negative-ion related current loss.
ACCESSION #
4290422

 

Related Articles

  • The ALTO Facility for the Production of Rare Nuclei. Cottereau, E. // AIP Conference Proceedings;3/15/2009, Vol. 1099 Issue 1, p774 

    The ALTO facility (Accélérateur Linéaire et Tandem d’Orsay) at Institut de Physique Nucléaire d’Orsay is under commissioning. The main aim of this facility is to provide neutron rich isotope beams for both nuclear physics studies (away from the valley of stability) and...

  • Ion beam noise reduction method for the MEVVA ion source (abstract)a). Oks, E.; Spädtke, P.; Emig, H.; Wolf, B. H. // Review of Scientific Instruments;Apr94, Vol. 65 Issue 4, p1262 

    The beam extracted from the MEVVA ion source tends to be of a relatively high-noise level, particularly for the higher charge states, making beam transport difficult in accelerator applications. This paper presents experimental results which show that the use of grids within the ion source in...

  • First operation of the charge-breeder electron-cyclotron-resonance ion source at the Texas A&M Cyclotron Institute. May, D. P.; Tabacaru, G.; Abegglen, F. P.; Cornelius, W. D. // Review of Scientific Instruments;Feb2010, Vol. 81 Issue 2, p02A901 

    The 14.5 GHz electron-cyclotron-resonance ion source (ECRIS) designed and fabricated specifically for charge breeding has been installed at the Texas A&M University Cyclotron Institute for use in the institute's ongoing radioactive-ion-beam upgrade. The initial testing of the source has just...

  • Possible Upgrade of an Existing Tandem Accelerator Facility to an ISOL Facility for Neutron-Rich Rare Isotope Beams. Das, J. J.; Kanjilal, D.; Roy, A. // AIP Conference Proceedings;3/15/2009, Vol. 1099 Issue 1, p742 

    The feasibility and utility of a Helium multi-jet system to transport fission fragments vertically up to an ion source 50 m above ground level is explored. This idea opens up the possibility of using the existing 15-UD tandem and SC linac accelerator system at Inter University Accelerator Center...

  • Development of 1 MeV H- Accelerator at JAEA for ITER NB. Taniguchi, M.; de Esch, H. P. L.; Svensson, L.; Umeda, N.; Kashiwagi, M.; Watanabe, K.; Tobari, H.; Dairaku, M.; Sakamoto, K.; Inoue, T. // AIP Conference Proceedings;3/12/2009, Vol. 1097 Issue 1, p335 

    This paper reports the recent activities at JAEA for the development of 1 MeV H- ion accelerator toward the ITER NBI. For the development of MAMuG accelerator, a 320 mA H- ion beam was successfully accelerated as the highest record in the world at the MeV class energy (796 keV). This was...

  • Low-energy ion decelerator for an external injection line at the NIRS-930 cyclotron. Honma, T.; Hojo, S.; Sakamoto, Y.; Muramatsu, M.; Miyahara, N.; Okada, T.; Komatsu, K.; Yamada, S. // Review of Scientific Instruments;Mar2006, Vol. 77 Issue 3, p03B909 

    A low-energy ion decelerator for the acceleration-deceleration system has been designed and installed in the beam-injection line of the NIRS-930 cyclotron in an attempt to increase the beam intensity from the cyclotron. With this acceleration-deceleration system, the beam intensity of 12C4+ ions...

  • Effect of the plasma instability on the beam intensity from RIKEN 18 GHz electron cyclotron resonance ion source. Higurashi, Y.; Nakagawa, T.; Kidera, M.; Aihara, T.; Kobayashi, K.; Kase, M.; Goto, A.; Yano, Y. // Review of Scientific Instruments;Mar2006, Vol. 77 Issue 3, p03B703 

    We measured the beam oscillation of RIKEN 18 GHz electron cyclotron resonance ion source for various conditions. In this experiment, the frequency of the beam oscillation increases with increasing the gas pressure and decreases with increasing rf power. The oscillation frequency is strongly...

  • Linac4 low energy beam measurements with negative hydrogen ions. Scrivens, R.; Bellodi, G.; Crettiez, O.; Dimov, V.; Gerard, D.; Souza, E. Granemann; Guida, R.; Hansen, J.; Lallement, J.-B.; Lettry, J.; Lombardi, A.; Midttun, Ø.; Pasquino, C.; Raich, U.; Riffaud, B.; Roncarolo, F.; Valerio-Lizarraga, C. A.; Wallner, J.; Satri, M. Yarmohammadi; Zickler, T. // Review of Scientific Instruments;2014, Vol. 85 Issue 2, p1 

    Linac4, a 160 MeV normal-conducting H- linear accelerator, is the first step in the upgrade of the beam intensity available from the LHC proton injectors at CERN. The Linac4 Low Energy Beam Transport (LEBT) line from the pulsed 2 MHz RF driven ion source, to the 352 MHz RFQ (Radio-frequency...

  • Compensation of beamlet repulsion in a large negative ion source with a multi aperture accelerator. Kashiwagi, M.; Inoue, T.; Grisham, L. R.; Hanada, M.; Kamada, M.; Taniguchi, M.; Umeda, N.; Watanabe, K. // AIP Conference Proceedings;3/12/2009, Vol. 1097 Issue 1, p421 

    Excess heat loads to accelerator grids limit extension of pulse length in operation of the large negative ion sources with multi aperture accelerator. Part of the heat loads is caused by interception of deflected beamlets due to their space charge repulsion. In this paper, a beamlet steering...

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