Microwaves pp 706-718 | Cite as

Design and fabrication of a two-mile disk-loaded linear electron accelerator

  • A. L. El. dredge
  • G. A. Loew
  • R. B. Neal
Chapter

Abstract

A two-mile electron linear accelerator designed to produce an electron beam of high intensity in the energy range of 10 to 40 Bev for purposes of physics research is now being constructed on a site near the Stanford University campus. Stanford is carrying out this work under a prime contract with the U.S. Atomic Energy commission. The estimated total construction cost of this accelerator is $114 million. The construction schedule calls for completion by July 1st, 1966. A general view of the accelerat or and the experimental area is shown in Pig. 1.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References and notes

  1. [1]
    R. B. NEAL, ML Report No. 513, Theory of the Constant Gradi ent L inear El ectron Accelerat-or, May 1958, and M Report No. 259, Comparison of the Constant Gradient and Uniform Accelerator Structures, March 1961, Stanford Linear Accelerator Center, Stanford University, California.Google Scholar
  2. [2]
    The parameter τ has been called IIin several previous reports, where Iis the r.f. attenuation in nepers per unit length, and Iis the length of the accelerator section, τ is equal to ω t F/2Q, where ω is times the operating frequency, tF is the filling time and Qis the loss factor in the r.f. structure. The dependence of t upon filling time tF emphasizes the importance of comparing the e.g. and c.i. structures at the same value of τ for each, for equal t, the two structures will have the same filling time, the same stored energies, and the same ratios of input to output r.f. powers (reference 1).Google Scholar
  3. [3]
    These phenomena were called to our attention by J.E. LEISS of the U.S. National Bureau of Standards (private communication). Calculations made by Leiss have been confirmed by experimental results at Stanford and elsewhere.Google Scholar
  4. [4]
    M. G. KELLIHER and R. BEADLE, Nature 187, 1099, 1960.CrossRefGoogle Scholar
  5. [5]
    M.C. CROWLEY-MILLING, T.R. JARVIS, C. W. MILLER, G. SAXON, Nature 191, 483, July 1961.CrossRefGoogle Scholar
  6. [6]
    ML Report No. 581, Linear Electron Accelerator Studies, W. W. Hansen Laboratories of Physics, Stanford University, Stanford, California, February 1959.Google Scholar
  7. [7]
    The original basis for τ = 0.57 was that this particular value resulted in a no-load energy in the constant-impedance accelerator which is 10% less than the maximum no-load energy which can be obtained (occurring at τ = 1.26). This was felt to be the maximum penalty in energy which one could afford to pay to obtain the advantages of low τ. The same qualitative reasoning holds for the con stan t-gradi ent accelerator structure and thus, we have not seen fit to change the value of Tselected earlier.Google Scholar
  8. [8]
    E. L. GINZTON, Microwave Measurements, McGraw Hill Book Company, 1957.Google Scholar
  9. [9]
    Stanford High-Energy Linear Electron Accelerator (Mark III), ML Report No.258, M. CHODOROW, et al. February 1955.Google Scholar
  10. [10]
    Measur ement Techniques for Periodic Structures, W.J. GALLAGHER, M Report No. 205, November 1960, Stanford University, Stanford, California.Google Scholar
  11. [11]
    W. R. AYERS, E.L. CHU, W. J. GALLAGHER, Measure-ments of Interaction Imp edanc e in Periodic Circuits, ML Report NO. 403, June 1957, Microwave Laboratory, Stanford University, Stanford, California.Google Scholar
  12. [12]
    P.N. ROBSON, Metropolitan-Vickers El ectrical Co., Ltd., Report No. 5105.Google Scholar
  13. [13]
    Linear Electron Ac c elenat or Studies and Proposed Two-Mile Accelerator Project, Status Report M Report, No. 246, January 1961, Stanford Linear Accelerator Center, Stanford University, Stanford, California.Google Scholar
  14. [14]
    A Source of Error in the Use of Slope Detection for Perturbation Measurements, K.B. MALLORY. I. R. E. Transactions on Microwave Theory and Techniques, March 1962.Google Scholar
  15. [15]
    Space Harmonics Content of the 2π/3 Accelerator Structure, RENEE HIREL, M Report No. 270, Project M, Stanford University, Stanford, California, June 1961.Google Scholar
  16. [16]
    G. A. DESCHMMPS, J. Applied Physics, 24, 1046 (1953).CrossRefGoogle Scholar
  17. [17]
    K.B. MALLORY, A Comparison of the Predict ed and Observed Performances of a Billion-Volt Electron Accelerator, HEPL Report No.46, W. W. Hansen Labo rato ri es, Stanford University, 1955, p. 68 et seq.Google Scholar
  18. [18]
    R. BELBÉOCH, Problèmes Poses Par l’Adaptation du Coupleur d’Entree d’Une Structure’ en Guide Charge par des Iris, Laboratoire de l’Accélérateur Linéaire, Report LAL, April 1961.Google Scholar

Copyright information

© N.V. Uitgeversmaatschappij Centrex 1963

Authors and Affiliations

  • A. L. El. dredge
    • 1
  • G. A. Loew
    • 1
  • R. B. Neal
    • 1
  1. 1.Stanford Linear Accelerator CenterStanford UniversityStanfordUSA

Personalised recommendations