Accession Number:

AD0627351

Title:

MODIFICATION PROGRAM FOR THE NEVIS SYNCHROCYCLOTRON,

Descriptive Note:

Corporate Author:

NEVIS LABS COLUMBIA UNIV IRVINGTON-ON-HUDSON N Y

Personal Author(s):

Report Date:

1966-01-01

Pagination or Media Count:

161.0

Abstract:

The plan envisages an eventual conversion to 500-600 MeV proton kinetic energy and or 10 microamp time average current. It is hoped to obtain a high extraction efficiency which will permit a 10 to 50 microamp time average external proton beam current having a high duty factor, with corresponding high intensity pion and muon beams. This program will involve a major building and shielding, etc. extension. It is planned to use spiral ridge iron shims with Br average over azimuth increasing with r more slowly than for isochronism, but by an amount which will give a greatly reduced rf frequency swing. This should permit a repetition rate of about 300sec. The design study will rely strongly on the use of one-fifth scale cyclotron model magnet for field studies. Using a vacuum system, ion source, frequency modulated rf system, etc., it will also be used for central region studies using spiral ridge iron shimming. This model operating FM cyclotron may also be ued for a partial investigation of extraction modes where the protons would emerge along a high spiral angle valley field contour. Author

Subject Categories:

  • Particle Accelerators

Distribution Statement:

APPROVED FOR PUBLIC RELEASE