Selective deposition of radio-frequency power in volume sources to optimize the tandem configuration for negative ion production

Hershcovitch, Ady
April 1994
Review of Scientific Instruments;Apr94, Vol. 65 Issue 4, p1170
Academic Journal
This article is a suggestion for the development of a microwave driven volume source. A high electron temperature plasma is to be generated by coupling microwaves at the electron cyclotron resonance into a closed field line magnetic field configuration to form the discharge chamber of a volume source. As an example, a toroidal magnetic field configuration is examined. Numerous advantages of this scheme are cited, most important of which is the possibility of having a tandem volume source with a very steep plasma temperature gradient.


Related Articles

  • 11–13 GHz electron cyclotron resonance plasma source using cylindrically comb-shaped magnetic-field configuration for broad ion-beam processing. Asaji, Toyohisa; Kato, Yushi; Sato, Fuminobu; Iida, Toshiyuki; Saito, Junji // Review of Scientific Instruments;Nov2006, Vol. 77 Issue 11, p113503 

    An electron cyclotron resonance (ECR) plasma source for broad ion-beam processing has been upgraded by a cylindrically comb-shaped magnetic-field configuration and 11–13 GHz frequency microwaves. A pair of comb-shaped magnets surrounds a large-bore discharge chamber. The magnetic field...

  • Electron cyclotron resonance plasma photos. Rácz, R.; Biri, S.; Pálinkás, J. // Review of Scientific Instruments;Feb2010, Vol. 81 Issue 2, p02B708 

    In order to observe and study systematically the plasma of electron cyclotron resonance (ECR) ion sources (ECRIS) we made a high number of high-resolution visible light plasma photos and movies in the ATOMKI ECRIS Laboratory. This required building the ECR ion source into an open ECR plasma...

  • Broad Ion Beam Extraction from Large Bore ECR Ion Source with Cylindrically Comb-Shaped Magnetic Fields Configuration by Feeding Simultaneously 11 to 13 GHz and 2.45 GHz Microwaves. Kato, Y.; Satani, T.; Matsui, Y.; Watanabe, T.; Muramatsu, M.; Tanaka, K.; Asaji, T.; Kitagawa, A.; Sato, F.; Iida, T. // AIP Conference Proceedings;11/3/2008, Vol. 1066 Issue 1, p348 

    We tried to enlarge the operation window of an electron cyclotron resonance (ECR) ion source for producing the ECR plasma confined by cylindrically comb-shaped magnetic field, and for extracting the broad ion beam under the low pressures and low microwave powers. The magnetic field by permanent...

  • Microwave Produced Plasma Study in a Cylindrical System. Yadav, V. K.; Sathyanarayana, K.; Bora, D. // AIP Conference Proceedings;3/19/2008, Vol. 993 Issue 1, p307 

    Hydrogen plasma using electron cyclotron resonance (ECR) technique is produced and is studied in a small linear system for breakdown parameters. Microwave power in the experimental system is delivered by a magnetron at 2.45 GHz for 30 ms during which the breakdown of neutral gas occurs. The...

  • Characteristics of the 2nd Harmonic ECR Micro Plasma Sources by Using PIC/MCC Simulations. Radmilović-Radjenović, M.; Radjenović, B.; Beličev, P. // Acta Physica Polonica, A.;Jul2012, Vol. 122 Issue 1, p128 

    In this paper we have presented our simulation studies of 2.4 GHz microwave plasma production under the electron cyclotron resonance with an idea to expand the plasma generation conditions into the much lower pressure range and much shorter gap length. As the first for this purpose, we have...

  • Ion beams extraction and measurements of plasma parameters on a multi-frequencies microwaves large bore ECRIS with permanent magnets. Nozaki, Dai; Kiriyama, Ryutaro; Takenaka, Tomoya; Kurisu, Yosuke; Yano, Keisuke; Sato, Fuminobu; Kato, Yushi; Iida, Toshiyuki // AIP Conference Proceedings;Nov2012, Vol. 1496 Issue 1, p410 

    We have developed an all-permanent magnet large bore electron cyclotron resonance ion source (ECRIS) for broad ion beam processing. The cylindrically comb-shaped magnetic field configuration is adopted for efficient plasma production and good magnetic confinement. To compensate for disadvantages...

  • Enhanced production of ECR plasma by using pulse mode microwaves on a large bore ECRIS with permanent magnets. Kato, Yushi; Kiriyama, Ryutaro; Takenaka, Tomoya; Kurisu, Yosuke; Nozaki, Dai; Yano, Keisuke; Sato, Fuminobu; Iida, Toshiyuki // AIP Conference Proceedings;Nov2012, Vol. 1496 Issue 1, p426 

    In order to enhance the efficiency of an electron cyclotron resonance (ECR) plasma for a broad and dense ion beam source at low pressure, the magnetic field configuration is constructed by all permanent magnets. By using the pulse mode, we aim at the generation of plasma with parameters that...

  • Generation of electron cyclotron resonance plasmas using a circular TE01 mode microwave. Hidaka, R.; Hirotsu, N.; Tanaka, N.; Kawai, Y. // Journal of Applied Physics;11/1/1992, Vol. 72 Issue 9, p4461 

    Presents a study that generated an electron cyclotron resonance (ECR) plasma using a circular TE01 mode microwave to achieve larger diameters. Information on how to generate a large diameter ECR plasma; Comparison of the electric fields in TE11 and TE10 mode microwave; Iron saturation current...

  • The study of a 2.45 GHz plasma source as a plasma generator for the SCECR electron cyclotron resonance ion source. Srivastava, A. K.; Asmussen, J.; Antaya, T.; Harrison, K. // Review of Scientific Instruments;Apr94, Vol. 65 Issue 4, p1135 

    The 2.45 GHz plasma source is a multicusp electron cyclotron resonance source with a tuned single mode microwave cavity. This is a bright plasma source with a well characterized operating mode and plasma parameters [A. K. Srivastava, et al., Rev. Sci. Instrum. 63, 2556 (1992); A. K. Srivastava...


Read the Article


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

Try another library?
Sign out of this library

Other Topics