TITLE

Study of a laser-heated electron gun

AUTHOR(S)
Roy, P.K.; Moon, A.; Mima, K.; Nakai, S.; Fujita, M.; Imasaki, K.; Yamanaka, C.; Yasuda, E.; Watanabe, T.; Ohigashi, N.; Okuda, Y.
PUB. DATE
December 1996
SOURCE
Review of Scientific Instruments;Dec1996, Vol. 67 Issue 12, p4098
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Studies a method of cathode heating using a laser for an electron gun. Practicality of the heating system; Characteristics of the laser-heated gun with a dispenser and thermionic cathodes; Efficiency of direct laser irradiation; Observation that the growth of electron beam emittance was very small in the laser heating.
ACCESSION #
4320447

 

Related Articles

  • A long-pulse 300 keV electron gun with a plasma cathode for high-pressure gas lasers. Gielkens, S.W.A.; Peters, P.J.M.; Witterman, W.J.; Borovikov, P.V.; Stepanov, A.V.; Tskhai, V.N.; Zavjalov, M.A.; Gushenets, V.I.; Koval, N.N. // Review of Scientific Instruments;Jul96, Vol. 67 Issue 7, p2449 

    Discusses the design and main features of a plasma cathode electron gun for high-pressure gas lasers. Use of the mesh plasma cathode in combination with a low-pressure gas discharge for the formation of a large cross-section electron beam; Low-pressure gas discharge features; Electron gun...

  • Plasma-anode electron gun. Santoru, Joseph; Schumacher, Robert W.; Gregoire, Daniel J. // Journal of Applied Physics;11/15/1994, Vol. 76 Issue 10, p5629 

    Examines the structure and mechanisms of the plasma-anode electron gun. Background on high-voltage electron guns as laser sources; Operating principles; Electron-beam profile and temperature; Information on the gun's cold-cathode electron source.

  • High brightness electrostatically focused field emission electron gun for free electron laser applications. Kirkpatrick, D. A.; Shefer, R. E.; Bekefi, G. // Journal of Applied Physics;6/1/1985, Vol. 57 Issue 11, p5011 

    Presents a study which developed a high brightness electrostatically focused field emission gun for use in free electron laser. Experimental arrangement; Results; Comparison of results with previous studies.

  • 23 GHz ferroelectric electron gun based gyrotron. Ben-Moshe, R.; Einat, M. // Applied Physics Letters;4/25/2011, Vol. 98 Issue 17, p173506 

    Ferroelectric cathodes have been explored as an alternative electron source for microwave tubes. Past experiments have demonstrated operation at frequencies of 2-10 GHz. Since the ferroelectric cathode is based on surface plasma, the relatively high energy spread limits the tube operation...

  • A tandem two-stage electroionization laser facility. Zayarnyi, D. A.; L'dov, A. Yu.; Ustinovskii, N. N.; Kholin, I. V. // Instruments & Experimental Techniques;Jul2010, Vol. 53 Issue 4, p561 

    Tandem electroionization laser facility consisting of two lasers with identical 10-l volumes of the active regions and different types of electron guns is described. In the first laser, a gun with a cold pointed cathode is used with an electron-current density of 1.7 A/cm and a pulse duration of...

  • Metal–insulator cathode in an rf electron gun. Aızatskiı, N. I.; Biller, E. Z.; Kushnir, V. A.; Mitrochenko, V. V.; Khodak, I. V.; Zhiglo, V. F. // Technical Physics Letters;Oct98, Vol. 24 Issue 10, p762 

    The possibility of using metal-insulator cathodes in rf guns of 10 cm linear resonant electron accelerators has been studied experimentally for the first time. Results of calculations and the development of a prototype cathode are described. Results of an experimental investigation of the...

  • Electron-pumped high-efficiency semiconductor laser. Daneu, V.; DeGloria, D. P.; Sanchez, A.; Tong, F.; Osgood, R. M. // Applied Physics Letters;9/8/1986, Vol. 49 Issue 10, p546 

    We report on an efficient semiconductor laser array pumped by a high-energy electron gun. A peak power of 350 kW in a 4-ns pulse has been measured from a 25-mm2 CdS laser. For the materials studied (CdS, ZnxCd1-xS, and ZnSxSe1-x), laser action has been obtained in the blue-green region of the...

  • Beam Measurement of 11.424 GHz X-Band Linac for Compton Scattering X-ray Source. Natsui, Takuya; Mori, Azusa; Masuda, Hirotoshi; Uesaka, Mitsuru; Sakamoto, Fumito // AIP Conference Proceedings;11/5/2010, Vol. 1299 Issue 1, p538 

    An inverse Compton scattering X-ray source for medical applications, consisting of an X-band (11.424 GHz) linac and Q-switched Nd:YAG laser, is currently being developed at the University of Tokyo. This system uses an X-band 3.5-cell thermionic cathode RF gun for electron beam generation. We can...

  • High-current-density gun with a LaB[sub 6] cathode. Ebihara, K.; Hiramatsu, S. // Review of Scientific Instruments;Aug1996, Vol. 67 Issue 8, p2765 

    Discusses a gun assembly heated to high temperature and a cathode heating system using electron bombardment and radiation from a heater. Results of the high-voltage operation of the gun; Examination of a prototype of a Pierce-type electron gun using planar 12-millimeter-diam lanthanum...

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