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High Power 35 GHz Testing of A Free-Electron Laser and Two-Beam Accelerator Structures

  • D. B. Hopkins
  • R. W. Kuenning
  • F. B. Selph
  • A. M. Sessler
  • J. C. Clark
  • W. M. Fawley
  • T. J. Orzechowski
  • A. C. Paul
  • D. Prosnitz
  • E. T. Scharlemann
  • S. M. Yarema
  • B. R. Anderson
Part of the Ettore Majorana International Science Series book series (EMISS, volume 29)

Abstract

At the Lawrence Livermore National Laboratory, a pulsed electromagnetic wiggler has been coupled to the Experimental Test Accelerator forming the Electron Laser Facility. This is a single-pass Free-Electron Laser which, because the wiggler excitation can be varied, can operate over a wide frequency range. Efficiency of conversion of electron beam to microwave power is 7%. This new power source is being used in a collateral program for developing and testing structures suitable for a Two-Beam Accelerator. The Two-Beam Accelerator shows much promise for achieving the high average accelerating gradients, e.g., ≥250 MV/m, required in such next-generation electron accelerators as 1 TeV on 1 TeV linear colliders.

Keywords

Insertion Loss Free Electron Laser Crystal Detector Emittance Selector Saturation Length 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    T.J. Orzechowski, et al, in: Free Electron Generators of Coherent Radiation, C.A. Brau, S.F. Jacobs and M.O. Scully, eds., SPIE, Bellingham, WA, p. 65 (1983).Google Scholar
  2. 2.
    A fourth meter of wiggler is being added to ELF at the time of this writing.Google Scholar
  3. 3.
    R.E. Hester, et al, The Experimental Test Accelerator (ETA), IEEE Trans. Nucl. Sci., NS-26:3, (1979).Google Scholar
  4. 4.
    Edge emittance is defined as the area in phase space which matches the acceptance of the emittance selector and contains 100% of the electron beam.Google Scholar
  5. 5.
    T. J. Orzechowski, et al, High Gain and High Extraction Efficiency From a Free Electron Laser Amplifier Operating in the Millimeter Wave Regime, Proc. 7th Int. Free Electron Laser Conf., Tahoe City, CA, UCRL-93262, (1985).Google Scholar
  6. 6.
    W.B. Colson and A.M. Sessler, Free Electron Lasers, Ann. Rev. Nucl. Part. Sci., 35:25, (1985).ADSCrossRefGoogle Scholar
  7. 7.
    N.M. Kroll, P.L. Morton and M.R. Rosenbluth, IEEE J. Quant. Elect., 17, 1436 (1981); also see: W.M. Fawley, D. Prosnitz, and E.T. Scharlemann, Phys. Rev. A30:2472 (1984).ADSCrossRefGoogle Scholar
  8. 8.
    T.J. Orzechowski, A Novel Probe for Determining the Size and Position of a Relativistic Electron Beam, in Fiber Optics in Adverse Environments II, R.A. Greenwell, ed., SPIE Vol. 506, p. 36 (1984).Google Scholar
  9. 9.
    H.A. Haus, Noise in Free Electron Laser Amplifier, IEEE J. Quant. Elect., QE-17:1427 (1981).ADSCrossRefGoogle Scholar
  10. 10a.
    T.J. Orzechowski, et al, High Gain Free-Electron Lasers Using Induction Linear Accelerators, IEEE J. Quant. Elect., QE-21:7, (1985).Google Scholar
  11. 10b.
    T.J. Orzechowski, et al, High Gain Free-Electron Lasers Using Induction Linear Accelerators, IEEE J. Quant. Elect., QE-21:831 (1985).ADSCrossRefGoogle Scholar
  12. 11.
    W.D. Kilpatrick, Rev. Sci. Inst., 28:824 (1957).ADSCrossRefGoogle Scholar
  13. 12.
    R.S. Symons and H.R. Jory, Cyclotron Resonance Devices, in Advances in Electronics and Electron Physics, Vol. 55, L. Marton and C. Marton, Eds. Academic Press, Inc. (1981).Google Scholar
  14. 13.
    A.M. Sessler, The Free Electron Laser as a Power Source for a High-Gradient Accelerating Structure, in: Laser Acceleration of Particles, P.J. Channel ed. AIP Conf. Proc. No. 91, American Institute of Physics, New York, p. 154 (1982).Google Scholar
  15. 14a.
    J.E. Leiss, Induction Linear Accelerators and Their Applications, IEEE Trans. Nucl. Sci., NS-26: 3, (1979).Google Scholar
  16. 14b.
    J.E. Leiss, Induction Linear Accelerators and Their Applications, IEEE Trans. Nucl. Sci., NS-26: 3870 (1979).ADSGoogle Scholar
  17. 15.
    E. Sternbach and A.M. Sessler, A Steady-State FEL: Particle Dynamics in the FEL Portion of a Two-Beam Accelerator, Proc. of 7th Int. Free-electron Laser Conf., Tahoe City, CA, LBL-19939, (1985).Google Scholar
  18. 16.
    J.S. Wurtele, On Acceleration by the Transfer of Energy Between Two Beams,” in Laser Acceleration of Particles, C. Joshi and T. Katsouleas ed. AIP Conf. Proc. No. 130, American Institute of Physics, New York, p.305 (1985).Google Scholar
  19. 17.
    D.B. Hopkins, A.M. Sessler and J.S. Wurtele, “The Two-Beam Accelerator, LBL-17800, Nuc. Inst. & Meth. for Phys. Res., 228:15 (1984).ADSCrossRefGoogle Scholar
  20. 18.
    F.B. Selph, The Two-Beam Accelerator, LBL-18403 (1984), in Proc. of Third Summer School on High Energy Particles, Brookhaven National Laboratory/State University of New York, Stony Brook, NY (1983).Google Scholar
  21. 19.
    D.B. Hopkins and R.W. Kuenning, The Two-Beam Accelerator: Structure Studies and 35 GHz Experiments, IEEE Trans. Nucl. Sci., NS-32:3476 (1985).ADSCrossRefGoogle Scholar
  22. 20.
    R.B. Neal, W.A. Benjamin, Inc., Chapter 6 (1968).Google Scholar
  23. 21.
    J. S. Wang and G.S. Loew, Measurements of Ultimate Accelerating Gradients in the SLAC Disk-Loaded Structure (Part I), SLAC/AP-26 (1985).CrossRefGoogle Scholar
  24. 22.
    F.B. Selph and A.M. Sessler, Transverse Wakefield Effects in the Two-Beam Accelerator, Submitted to Nuclear Inst. and Meth., LBL-20083 (1985).Google Scholar
  25. 23.
    R.W. Kuenning and A.M. Sessler, Phase and Amplitude Control of the Radio Frequency Wave in the Two-Beam Accelerator, Submitted to Nuclear Inst. and Meth., LBL-20235 (1985).Google Scholar

Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • D. B. Hopkins
    • 1
  • R. W. Kuenning
    • 1
  • F. B. Selph
    • 1
  • A. M. Sessler
    • 1
  • J. C. Clark
    • 2
  • W. M. Fawley
    • 2
  • T. J. Orzechowski
    • 2
  • A. C. Paul
    • 2
  • D. Prosnitz
    • 2
  • E. T. Scharlemann
    • 2
  • S. M. Yarema
    • 2
  • B. R. Anderson
    • 3
  1. 1.Lawrence Berkeley LaboratoryUniversity of CaliforniaBerkeleyUSA
  2. 2.Lawrence Livermore LaboratoryUniversity of CaliforniaLivermoreUSA
  3. 3.Air Force Weapons CenterKirtland Air Force BaseAlbuquerqueUSA

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