TITLE

'Hollow cathode' gun optics

AUTHOR(S)
Ciullo, G.; Sharapa, A.N.; Shemyaki, A.V.; Tecchio, L.
PUB. DATE
March 1997
SOURCE
Review of Scientific Instruments;Mar97, Vol. 68 Issue 3, p1403
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Discusses the generation of an electron beam by a hollow cathode gun in a cusp magnetic field. Proposal of such a gun for an electron cooling device without toroids; Beam's experience of a disturbance region near the axis where the electron temperature becomes higher; Conditions for generating the beam so as to restrict the extent of the region as much as possible.
ACCESSION #
4320513

 

Related Articles

  • Arnold diffusion in a torus with time-varying fields. Lichtenberg, Allan J. // Physics of Fluids B: Plasma Physics;Oct92, Vol. 4 Issue 10, p3132 

    The interaction of magnetic field line stochasticity with drift islands can lead to Arnold diffusion of the drift island centers in a toroidal magnetic field. The basic formulas for this interaction have been derived and the diffusion rate determined. The formalism has been applied to...

  • Magnetic field evolution and measurement of fast rise-time electron beams. Mitrovich, Dushan // Review of Scientific Instruments;Jul1988, Vol. 59 Issue 7, p1139 

    In charged particle beam experiments, the electromagnetic signal produced at the beam injection point (conducting foil or aperture) by a fast-rise beam will reflect off conducting boundaries (pipe walls) to produce constructive and destructive interference. B-dot loop diagnostics can, in that...

  • Magnetic field mapping system on the H-1 heliac. Shats, M.G.; Rudakov, D.L.; Blackwell, B.D.; Sharp, L.E.; Fedyanin, O.I. // Review of Scientific Instruments;Feb1995, Vol. 66 Issue 2, p1163 

    Presents the electron-beam diagnostic for study of the magnetic field in the H-1 heliac. Magnetic mapping system; Existence of a set of closed nested surfaces in the standard H-1 magnetic configuration; Measurements of the rotational transform.

  • Periodic magnetic focusing of sheet electron beams*. Booske, J.H.; Basten, M.A.; Kumbasar, A.H.; Antonsen Jr., T.M.; Bidwell, S.W.; Carmel, Y.; Destler, W.W.; Granatstein, V.L.; Radack, D.J // Physics of Plasmas;May94, Vol. 1 Issue 5, p1714 

    Reports on the stability of sheet electron beams focused by periodically cusped magnetic fields against low-frequency velocity-shear instabilities. Issue of beam matching and side focusing for sheet beams of finite width; Review of past and present theoretical and experimental investigations of...

  • Beam generation, acceleration, and extraction on a stellatron accelerator. Song, T.; Fisher, A.; Rostoker, N. // Physics of Plasmas;Aug94, Vol. 1 Issue 8, p2777 

    Discusses the modification of the stellatron accelerator of the University of California at Irvine to accommodate beam extraction. Reconstruction of the magnetic field coils to adapt an extraction port; Reduction of current loss during acceleration due to improvement in the magnetic field...

  • Beam breakup instability in an annular electron beam. Lau, Y. Y.; Luginsland, John W. // Journal of Applied Physics;11/1/1993, Vol. 74 Issue 9, p5877 

    Presents a study which examined the instability of beam breakup in an annular electron beam. Importance of the radio frequency magnetic field of the breakup mode; Information on a proof-of-principle experiment suggested; Implications of the study's findings.

  • Propagation of an intense relativistic electron beam in an annular channel. Friedman, M. // Journal of Applied Physics;8/1/1996, Vol. 80 Issue 3, p1263 

    Presents a study which examined the propagation of an intense relativistic electron beam (IREB) in an annular channel. Factors that affect the propagation of annular intense electron beam inside a cylindrical drift tube; Effect of external magnetic field and drift tube geometry on IREB;...

  • Stability properties of coherently gyrating relativistic electron beams. Davies, J.A.; Chen, C. // Physics of Plasmas;Sep98, Vol. 5 Issue 9, p3416 

    Investigates the stability properties of a gyrating relativistic electron beam. Effects of nongyrotropic equilibrium distributions on magnetic field phase angle; Consideration of the time-dependent and axial dependent distributions; Propagation direction of the electromagnetic and longitudinal...

  • Some additional observations of the vortex instability in electron beams. Webster, H. F. // Physics of Plasmas;Jan2000, Vol. 7 Issue 1 

    A number of observations have been made of the electron vortices that form in high-density sheet beams traveling along magnetic field lines. The observations were done in sealed off high vacuum tubes. The tubes were equipped with pinhole cameras that permitted measurement of the current...

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