《SECTOR-FOCUSED CYCLOTRONS》

Ⅰ.Operating Characteristics and Design Features1

Design and operation of the U.C.L.A.50 MeV spiral-ridge cyclotronD.J.CLARK,J.R.RICHARDSON and B.T.WRIGHT1

Operation of a 40-inch radial ridge cyclotron A.J.Cox,D.E.KIDD,W.B.POWELL,B.L.REECE and P.J.WATERTON,25

General description and operating characteristics of the Berkeley 88-inch cyclotron E.L.KELLY33

Note on a spill beam from the 88-inch cyclotron J.R.RICHARDSON,H.WILLAX and W.B.JONES41

Unique features in the Oak Ridge isochronous cyclotron R.J.JONES,E.D.HUDSON,R.S.LIVINGSTON,R.S.LORD,M.B.MARSHALL,W.R.SMITH,W.H.WHITE Jr.and R.E.WORSHAM46

General design features of the University of Colorado 52-inch cyclotron D.A.LIND,J.J.KRAUSHAAR,R.SMYTHE and M.E.RICKEY62

The acceleration and extraction of negative hydrogen ions in the C.U.cyclotron M.E.RICKEY and R.SMYTHE66

Electric dissociation of negative hydrogen ions in cyclotrons and synchrocyclotrons D.L.JUDD70

Relativistic cyclotron for the University of Milan A.LUCCIO,G.PAVANATI,F.RESMINI,C.SUCCI and G.TAGLIAFERRI74

Shimming of a variable energy,sector-focused isochronous cyclotron by means of different permeability metals A.CABRESPINE and M.P.BOURGAREL81

Some design features of the Philips AVF prototype N.F.VERSTER,H.L.HAGEDOORN,J.ZWANENBURG,A.J.J.FRANKEN and J.GEEL88

The University of Michigan 83-inch cyclotron,Ⅰ,General description W.C.PARKINSON and R.S.TICKLE93

The University of Michigan 83-inch cyclotron,Ⅱ,The magnetic field R.S.TICKLE98

The university of Michigan 83-inch cyclotron,Ⅲ,The r.f.system P.BRUINSMA and W.C.PARKINSON102

The University of Michigan 83-inch cyclotron,Ⅳ,The external beam handling system J.BARDWICK,J.M.LAMBERT and W.C.PARKINSON105

The University of Manitoba cyclotron K.G.STANDING,J.J.BURGERJON and F.KONOPASEK111

Studies for a 70-inch versatile cyclotron J.D.LAWSON114

A preliminary report on the 22-inch spiral ridge cyclotron at the University of California,Davis J.A.JUNGERMAN,N.F.PEEK and C.G.PATTEN120

Catalogue of isochronous cyclotrons F.T.HOWARD125

Ⅱ.Magnetic Fields129

Magnetic field design and measurement for the Colorado 52-inch cyclotronD.A.LIND,M.E.RICKEY and B.M.BARDIN129

Full-scale magnetic measurements on the Berkeley 88-inch cyclotron J.H.DORST135

Some model magnet measurements and their application to the design of a 70-inch spiral ridge cyclotron J.H.COUPLAND and K.J.HOWARD148

Achievement and measurement of the ORIC magnetic field E.D.HUDSON,R.S.LORD,M.B.MARSHALL,W.R.SMITH and E.G.RICHARDSON Jr.159

Magnet regulators for ORIC W.H.WHITE Jr.170

Ⅲ.Radio Frequency Systems177

Characteristics of the UCLA cyclotron radiofrequency systemK.R.MACKENZIE,S.PLUNKETT and E.L.PETERSEN177

Radiofrequency system of the Berkeley 88-inch cyclotron B.H.SMITH184

Comparison between variable-energy synchrocyclotron and sector-focused cyclotron J.SANADA,Ⅰ.HAYASHI and A.SUZUKI194

A high-voltage regulator for the ORNL 86-inch cyclotron N.F.ZIEGLER197

Ⅳ.Orbit Theory201

Orbits in an AVF cyclotronH.L.HAGEDOORN and N.F.VERSTER201

Analytical theory of betatronic stability in sector-focused accelerators F.FER229

Effects of field imperfections on radial stability in a threesector cyclotron M.M.GORDON and W.S.HUDEC243

The electric gap-crossing resonance in a three-sector cyclotron M.M.GORDON268

Fixed-point orbits in the vicinity of the vr=N/3,N/4 and N/2 resonances M.M.GORDON281

Ⅴ.Computer Programs295

Three computer programs for calculating cyclotron orbitsH.C.OWENS295

Analyzing methods for ORIC magnetic fields R.H.BASSEL,R.S.BENDER and J.G.INNES303

Calculation of cyclotron trim-coil currents for field optimization by linear programming methods A.A.GARREN309

Computational procedures in the adjustment of a cyclotron magnetic field by trim coils J.D.YOUNG,A.S.KENNEY and A.A.GARREN323

Computer programs for an AVF cyclotron N.F.VERSTER and H.L.HAGEDOORN327

Analogue computer studies for an AVF cyclotron H.L.HAGEDOORN and N.F.VERSTER336

A computer program to investigate orbit stability in circular accelerators G.PARZEN,J.C.ANDERSON,M.R.STORM,J.M.MAYNARD and H.L.CARLSON338

Cyclotron programs for a small computer T.I.ARNETTE,H.G.BLOSSER,M.M.GORDON and D.A.JOHNSON343

Ⅵ.Central Region347

Center-region geometry of the Berkeley 88-inch cyclotronH.A.WILLAX and A.A.GARREN347

Development of the magnetic cone for the center of the Berkeley 88-inch cyclotron P.G.WATSON362

Central orbit program for a variable energy multi-particle cyclotron M.REISER370

Acceleration of particles into stable orbitsin an isochronous three-sector cyclotron M.M.GORDON and H.G.BLOSSER378

Ⅶ.Meson Factories387

The role of the pion factory in elementary particle physicsR.P.HADDOCK387

Comparison of accelerator types L.SMITH397

Shielding and activation considerations for a meson factory R.WALLACE405

Proposal for a constant-frequency sector-focussed cyclotron for protons of 450 MeV J.P.BLASER and K.STEIMEL417

On the design of an isochronous cyclotron meson factory M.BARBIER,P.LAPOSTOLLE,M.MORPURGO and N.VOGT-NILSEN425

Concepts of an Mc2 cyclotron R.S.LIVINGSTON,E.D.HUDSON,R.J.JONES,R.S.LORD,J.E.MANN,J.A.MARTIN,F.M.RUSSELL,N.F.ZIEGLER and A.ZUCKER438

Considerations on the design of a spiral ridge cyclotron for 450 MeV protons W.M？LLER and W.WOLFF447

Preliminary considerations on meson cyclotrons J.R.RICHARDSON457

Beam characteristics in cyclotron Analogue Ⅱ J.A.MARTIN and J.E.MANN461

Remarks on tune-up of Analogue Ⅱ R.J.JONES469

Radiation survey at the LRL 184-inch cyclotron R.W.BOOM,K.S.TOTH and A.ZUCKER472

Ⅷ.Beam Extraction479

A proposal for linear regenerative extraction from the Birmingham radial-ridge cyclotronE.A.FINLAY479

Resonant extraction from three-sector low-spiral cyclotrons H.G.BLOSSER,M.M.GORDON and T.I.ARNETTE488

Beam extraction from the University of Illinois sector-focussed cyclotron M.K.BRUSSEL,J.S.ALLEN and L.E.ERNEST520

Electrostatic deflector calculations for the Berkeley 88-inch cyclotron A.A.GARREN,D.L.JUDD,L.SMITH and H.A.WILLAX525

Ⅸ.Mechanical Design549

Metal gaskets for the Berkeley 88-inch cyclotronR.PETERS549

Mechanical features of the electrostatic deflector for the Berkeley 88-inch cyclotron R.PETERS552

The ion-source mechanism for the Berkeley 88-inch cyclotron J.M.HAUGHIAN and R.J.BURLEIGH559

Mechanical features of the r.f.system for the Berkeley 88-inch cyclotron K.F.MIRK562

Design and development of the ion source for the Berkeley 88-inch cyclotron K.W.EHLERS571

Trim-coil construction for the Berkeley 88-inch cyclotron L.R.GLASGOW and R.J.BURLEIGH576

University of Colorado 52-inch cyclotron dee design R.SMYTHE582

A Hall probe assembly for the Berkeley 88-inch cyclotron magnet R.DE FOREST584

Ⅹ.Diverse Topics589

Beam-transport system for the Berkeley 88-inch cyclotronH.ATTERLING589

Measurement of beam phase of the Berkeley 88-inch cyclotron C.G.DOLS595

Beam-phase measurement studies W.H.WHITE Jr.,B.DUELLI and R.J.JONES601

A method to increase the duty factor of an isochronous cyclotron T.K.KHOE606

On the duty cycle of cyclotrons A.I.YAVIN610

Application of silicon diodes to cyclotron oscillator and magnet power supplies W.L.DEXTER and B.H.SMITH613

Ferroelectric modulators H.BR？CKMANN622

Building,site,utilities and services for the Berkeley 88-inch cyclotron T.H.MYHRER and W.P.CARPENDER627

Costs and manpower for the Berkeley 88-inch cyclotron R.J.BURLEIGH634

List of Delegates640

Author Index645