Introductory Remarks – Maurice Goldhaber, Director, Brookhaven National Laboratory

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Introductory Remarks – Maurice Goldhaber, Director, Brookhaven National Laboratory	iii
Editor’s Preface – Albert G. Prodell, Brookhaven National Laboratory	iv
Introduction – John P. Blewett, Brookhaven National Laboratory	v

FIRST WEEK – SUPERCONDUCTING RF CAVITIES AND LINACS
Chairman: H.A. Schwettman, Stanford University
(Photos)
The Development of Low Temperature Technology at Stanford and its Relevance to High Energy Physics	1
H. Alan Schwettman, Stanford University

Q Measurements on Superconducting Cavities at S-Band	13
H. Hahn, H.J. Halama, and E.H. Foster, Brookhaven National Laboratory

Coupling Losses in Superconducting Cavities	18
H. Hahn and J. Miller, Brookhaven National Laboratory

Fabrication of Niobium Rf Cavities	23
R.W. Meyerhoff, Union Carbide Corporation

Fabrication of High Q Superconducting Niobium Cavities	32
I. Weissman, Varian Associates

Materials Investigation for a Two-Mile Superconducting Accelerator	34
M.A. Allen and H.A. Hogg, Stanford Linear Accelerator Center

Characterization of Residual Rf Losses in Superconductors	40
C.R. Haden, University of Oklahoma

Technetium as a Material for ac Superconductivity Applications	49
S.H. Autler, NASA Electronics Research Center

Applications of the Fountain Effect in Superfluid Helium	52
C.M. Lyneis, M.S. McAshan, and H.A. Schwettman, Stanford University

Refrigeration at Temperatures Below the Boiling Point of Helium	59
S.C. Collins, 500 Incorporated

Rf Amplitude and Phase Stabilization for a Superconducting Linear Accelerator by Feedback Stabilization Techniques	67
L.R. Suelzle, Stanford University

Particle Motion in a Standing Wave Linear Accelerator	79
E.E. Chambers, Stanford University

Sample Parameters of a Two-Mile Superconducting Accelerator	101
R.B. Neal, Stanford Linear Accelerator Center

Consideration of the Use of Feedback in a Traveling-Wave Superconducting Accelerator	111
R.B. Neal, Stanford Linear Accelerator Center

Summary of Recent Investigations of the Karlsruhe Group on Rf Properties of Superconductors and on Applications	127
W. Jungst, Kernforschungszentrum Karlsruhe

An Enriched Particle Beam Using Superconducting Rf Deflectors	136
H.N. Brown, Brookhaven National Laboratory

Design Problems in Superconducting Rf Beam Separators	150
H.J. Halama, Brookhaven National Laboratory

Superconducting Rf Separator Research at the Rutherford Laboratory	165
A. Carne, B.G. Brady, and M.J. Newman, Rutherford Laboratory

Beam Optics Design for a 600 MeV Microtron	169
D.C. Sutton and A.O. Hanson, University of Illinois

High Stability UHF Oscillators using a Superconducting Cavity	171
F. Biquard, Nguyen Tuong Viet, and A. Septier, Institut d’Electronique, Orsay

Summary of First week of Summer Study	187
H. Alan Schwettman, Stanford University

SECOND WEEK - CRYOGENICS
Chairman: T.R. Strobridge, NBS, Boulder
(Photos)
Refrigeration at 4 ⁰K	193
T.R. Strobridge, National Bureau of Standards, Boulder

European State of the Art in Cryogenics	205
G. Prast, Philips Research Laboratories

Cryogenic Safety	229
M.G. Zabetakis, Bureau of Mines

Cryopumping	230
C. Barnes, CVI Corporation

Review of Heat Transfer to Helium I	249
R.V. Smith, National Bureau of Standards, Boulder

An Examination of a Liquid Helium Refrigeration System for Superconducting Magnets in the 200 GeV Experimental Area	293
M.A. Green, Lawrence Radiation Laboratory, Berkeley, and G.P. Coombs and J.L. Perry, 500 Incorporated

Cryogenic Electrical Leads	304
C.D. Henning, Lawrence Radiation Laboratory, Livermore

Low Temperature Metals	311
A. Hurlich, General Dynamics/Astronautics

Properties of Nonmetallic Materials at Cryogenic Temperatures	326
R. Mowers, Rocketdyne

Review of the Cryogenics Session – Second Week of the Summer Study	368
T.R. Strobridge, National Bureau of Standards, Boulder

THIRD WEEK – SUPERCONDUCTING MATERIALS
Chairman: A. Paskin, Brookhaven National Laboratory
(Photos)
Structure and Properties of High-Field Superconductors	377
J.D. Livingston, General Electric Company

Instability Comments	393
S.L. Wipf, Atomics International

Critical Current Behavior of Hard Superconductors	396
W.W. Webb, Cornell University

Critical Fields of Type II Superconductors	405
G. Cody, RCA Laboratories

The Effect of Radiation on the Properties of Superconducting Materials	437
G.W. Cullen, RCA Laboratories

Niobium Tin and Related Superconductors	449
R.B. Britton, Brookhaven National Laboratory

Composite Materials	465
A.D. McInturff, Brookhaven National Laboratory

Materials and Conductor Configurations in Superconducting Magnets	478
H. Brechna, Stanford Linear Accelerator Center

FOURTH WEEK – AC EFFECTS AND FLUX PUMPS
Chairman: S.L. Wipf, Atomics International
(Photos)
Ac Losses in Superconductors	511
S.L. Wipf, Atomics International

Use of Superconductors in High Energy Physics	544
J.P. Blewett, Brookhaven National Laboratory

Electrical Loss Measurements in a NbTi Magnet	550
F. Voelker, Lawrence Radiation Laboratory, Berkeley

Ac Losses in Magnets made of Nb₃Sn Ribbon	559
G.H. Morgan and P.F. Dahl, Brookhaven National Laboratory

Dynamic Resistivity of Hard Superconductors in a Perpendicular Time Varying Field	567
A. Altorfer, F. Caimi, and J.M. Rayroux, Oerlikon Engineering Company

Magnetic Instabilities and Solenoid Performance: Applications of the Critical State Model	571
H.R. Hart, Jr., General Electric Company

Magnetic and Thermal Instabilities Observed to Commercial Nb₃Sn Superconductors	601
G. del Castillo and L.O. Oswald, Argonne National Laboratory

Observations of Flux Jump Behavior Related to Various Changes of Geometry, and Thermal and Electrical Environment	612
A.D. McInturff, Brookhaven National Laboratory

Instabilities and Flux Annihilation	619
S.L. Wipf, Atomics International

Superconducting Transmission Lines – Communication and Power	622
N.S. Nahman, National Bureau of Standards, Boulder

Recent Developments in Superconductivity in Japan	628
Presented by N. Takano, Tokyo Shibaura Electric Company

The Case for Flux Pumps and Some of Their Uses	632
S.L. Wipf, Atomics International

Design Principles and Characteristics of the G.E. Flux Pump	654
R.L. Rhodenizer, General Electric Company

Flux Pumps as Power Supplies in Comparison with Alternatives	667
M.S. Lubell and K.R. Efferson, Oak Ridge National Laboratory

Flux Pump Work at Los Alamos	673
H. Laquer, Los Alamos Scientific Laboratory

60 Hz Flux Pumps	679
R.B. Britton, Brookhaven National Laboratory

Proposal for a Flux Pump Utilizing the Inverse Ettingshausen Effect in Hard Type II Superconductors in the Mixed State	681
W.H. Bergmann, Argonne National Laboratory

Summary of the Fourth Week – Ac Losses, Instability and Flux Pumps	683
S.L. Wipf, Atomics International

FIFTH WEEK – SUPERCONDUCTING MAGNETS
Chairman: W.B. Sampson, Brookhaven National Laboratory
(Photos)
Stress Problems Associated with Superconducting and Cryogenic Magnets	709
P.G. Marston, Magnetic Engineering Associates

Stresses in Magnetic Field Coils	714
W.F. Westendorp and R.W. Kilb, General Electric Company

Very High Field Hybrid Magnet Systems	727
D. Bruce Montgomery, J.E.C. Williams, N.T. Pierce, R. Weggel, and M.J. Leupold, Francis Bitter National Magnet Laboratory

Principles of Stability in Cooled Superconducting Magnets	748
Z.J.J. Stekly, R. Thome, and B. Strauss, Avco Everette Research Laboratory

The 1.8 Tesla, 4.8 m i.d. Bubble Chanmer Magnet	765
J.R. Purcell, Argonne National Laboratory

The Superconducting Magnet for the Proposed 25-foot Cryogenic Bubble Chamber	786
A.G. Prodell, Brookhaven National Laboratory

The Superconducting Magnet for the Brookhaven National Laboratory 7-foot Bubble chamber	794
D.P. Brown, R.W. Burgess, and G.T. Mulholland, Brookhaven National Laboratory

A 70 kilogauss Magnet for the Proposed Rutherford Laboratory 1.5 m Diameter Hydrogen Bubble Chamber	815
P.T.M. Clee, D.B. Thomas, and C.W. Trowbridge, Rutherford Laboratory

Development Program for the Magnet of the European 3.7 m Bubble Chamber	828
Presented by F. Wittgenstein, CERN

A Possible Source of Instability in “Fully Stabilized” Magnets	839
P.F. Smith, M.N. Wilson, and J.D. Lewin, Rutherford Laboratory

Analytical Design of Superconducting Multipolar Magnets	843
Richard A. Beth, Brookhaven National Laboratory

Superconducting Magnetic Dipoles	860
G. Parzen, Brookhaven National Laboratory

Superconducting Quadrupole Focusing Lens – Part I: Analytical Design and Full-Scale Copper-Wound Pole	866
A. Asner, CERN

Superconducting Quadrupole Focusing Lens – Part II: Construction and Preliminary Tests	880
D.N. Cornish, Culham Laboratory

Quadrupole Focusing Magnet	886
J.D. Rogers, W.V. Hassenzahl, H.L. Laquer, and J. K. Novak, Los Alamos National Laboratory

The Rutherford Laboratory Bending Magnet	888
M.N. Wilson, R.V. Stovold, and J.D. Lawson, Rutherford Laboratory

Brookhaven Superconducting dc Beam Magnets	893
R.B. Britton, Brookhaven National Laboratory

Pulsed Superconducting Magnets	908
W.B. Sampson, Brookhaven National Laboratory

Intrinsically Stable Conductors	913
P.F. Smith, M.N. Wilson, C.R. Walters, and J.D. Lewin, Rutherford Laboratory

Superconducting Magnets for Controlled Thermonuclear Research	920
C.E. Taylor, Lawrence Radiation Laboratory, Livermore

On Helium II Microstabilization of Nb₃Sn	926
W.H. Bergmann, Argonne National Laboratory

Progress on the IMP Facility	929
D.L. Coffey and W.F. Gauster, Oak Ridge National Laboratory

Standardized Tests for Superconducting Materials	944
W.F. Gauster, Oak Ridge National Laboratory

Superconducting Magnets for the 200 GeV Accelerator Experimental Areas	946
R.B. Meuser, Lawrence Radiation Laboratory, Berkeley

Construction of a Superconducting Test Coil Cooled by Helium Forced Circulation	953
M. Morpurgo, CERN

Summary of Fifth Week of Summer Study	962
W.B. Sampson, Brookhaven National Laboratory

SIXTH WEEK – ACCELERATORS AND STORAGE RINGS USING SUPERCONDUCTING OR CRYOGENIC MAGNETS
Chairman: J.P. Blewett, Brookhaven National Laboratory
(Photos)
Superconducting Synchrotrons	967
P.F. Smith, Rutherford Laboratory

Economic Factors Involved in the Design of a Proton Synchrotron or Storage Ring with a Superconducting Guide Field	981
M.A. Green, Lawrence Radiation Laboratory, Berkeley

A 2000 GeV Superconducting Synchrotron	998
W.B. Sampson, Brookhaven National Laboratory

Synchrotron Power Supplies using Superconducting Energy Storage	1002
P.F. Smith, Rutherford Laboratory

Some ac Loss Determinations by an Electric Multiplier Method	1007
W.S. Gilbert, Lawrence Radiation Laboratory, Berkeley

Radiation Effects on Superconducting Magnets	1011
H. Brechna, Stanford Linear Accelerator Center

Iron Shielding for Air Core Magnets	1042
J.P. Blewett, Brookhaven National Laboratory

Superconducting EFAG Accelerators	1052
G. Parzen, Brookhaven National Laboratory

Calculations Concerning Superconducting Accelerators	1059
P. Gerald Kruger and J.N. Snyder, University of Illinois

Preliminary Steps for Applying Superconductors to FFAG Accelerators	1075
G. del Castillo, R.J. Lari, and L.O. Oswald, Argonne National Laboratory

A Superconducting SLAC with a Recirculating Beam	1089
W.B. Herrmannsfeldt, Stanford Linear Accelerator Center

Properties and Preparation of High-Purity Aluminum	1095
V. Arp, National Bureau of Standards, Boulder

Synchrotron Magnets with Cryogenic Exciting Coils	1115
G.T. Danby, J.E. Allinger, and J. W. Jackson, Brookhaven National Laboratory

Summary of Sixth Week of Summer Study	1127
J.P. Blewett, Brookhaven National Laboratory

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Author Index