Design and operation of the U.C.L.A. 50 MeV spiral-ridge cyclotron

Journal Article · Thu Nov 01 04:00:00 EST 1962 · Nuclear Instruments and Methods

DOI:https://doi.org/10.1016/S0029-554X(62)80004-4· OSTI ID:4743217

Clark, David J.; Reginald Richardson, J.; Wright, Byron T.

The design and operation of the U.C.L.A. 50 Mev cyclotron is described. The magnetic field is presented in a series of graphs and orbit calculations on beam stability are given. The results of experimental observations and measurements on the internal beam include beam intensity graphs and photographs, piots of / nu /sub z/ and nu /sub r/ from r.f. knockout measurements, beam intensity as a function of dee voltage, and radial oscillation amplitude of the beam. Because of iack of shielding, the beam has been restricted to 2 mu a of 50 Mev protons by use of a 5% duty cycle. An increased intensity is expected when a puller electrode is used at the source. The tuning up of the beam by means of the eight circular coils for trimming the magnetic field has been found to be quite simple in practice. Efforts to get an external beam are now proceeding in the permanent shielding vault. (auth)

• Research Organization: Univ. of California, Los Angeles
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-007353
• OSTI ID: 4743217
• Journal Information: Nuclear Instruments and Methods, Journal Name: Nuclear Instruments and Methods Journal Issue: C Vol. 18-19; ISSN 0029-554X
• Publisher: Elsevier
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BEAMS
BETATRONS
COILS
CONFIGURATION
CYCLOTRONS
DIAGRAMS
EFFICIENCY
ELECTRIC POTENTIAL
ELECTRODES
ENERGY RANGE
ERRORS
EXCITATION
FREQUENCY
ION SOURCES
MAGNETIC FIELDS
MEASURED VALUES
NUMERICALS
OPERATION
ORBITS
OSCILLATIONS
PHOTOGRAPHY
PHYSICS
PLANNING
PROTON BEAMS
RADIO WAVES
SHIELDING
STABILITY
UCLA
VARIATIONS