Accession Number:

AD0606161

Title:

VARIABLE ENERGY EXTRACTION FROM THE UCLA 50 MEV CYCLOTRON.

Descriptive Note:

Technical rept.,

Corporate Author:

CALIFORNIA UNIV LOS ANGELES

Personal Author(s):

Report Date:

1963-12-01

Pagination or Media Count:

36.0

Abstract:

A scheme for the extraction of a 25 to 47 MeV proton beam into a common external beam-transport system was studied for use with the UCLA 50 MeV cyclotron. The extraction is accomplished by stripping negative hydrogen ions with a thin foil. The magnetic field is held constant while the radius and azimuth of the stripping foil are chosen so that the trajectories for any energy cross at a common point outside the cyclotron vacuum tank. A small combination magnet placed at this crossover point bends the trajectories into a common beam-transport system. The feasibility of this scheme was studied by computing the ion-optic matrix for the cyclotron fringing field for 25, 30, 35, 40 and 45 MeV. The beamspot size calculated indicates a one hundred per cent extraction efficiency in this energy range. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE