THE UNIVERSITY OF MICHIGAN 83-INCH CYCLOTRON. Progress Report No. 12, April 1, 1963-June 30, 1963

Technical Report · Mon Jul 01 04:00:00 EDT 1963

OSTI ID:4677152

Parkinson, W C; Tickle, R S

Tests without the gradient coils energized confirmed previously noted defocusing at 34 in. The beam intensity at full radius (38.5 in.) was a factor of 30 to 40 less than at 33 in. With the proper gradient coil current values no beam loss between 33 in. and full radius was observed. Extraction of 10 mu amp of 12-Mev proton with 40% efficiency was achieved. Protons at S to 24 Mev and deuterons at 15 to 40 Mev were accelerated to the extraction radius, and high currents were readily obtained at the extraction radius. Preliminary shielding tests showed no problems with 200 mu amp of 40-Mev deuterons on copper. The dee voltage regulator was adjusted, and satisfactory operation of the r-f system over the design range of frequencies, 6.5 to 15 Mc, was obtained. The three beam analyzer magnets were installed and connected. Tests on the two beam-preparation magnets revealed difficulties with polonium creeping and flaking. (D.C.W.)

• Research Organization: Michigan. Univ., Ann Arbor. Coll. of Literature, Science, and the Arts
• NSA Number: NSA-17-031559
• OSTI ID: 4677152
• Report Number(s): TID-19016; ORA-03763-12P
• Country of Publication: United States
• Language: English

Related Subjects

BEAMS
CIRCUITS
COILS
CONFIGURATION
CONTROL SYSTEMS
COPPER
CURRENTS
CYCLOTRONS
DEUTERON BEAMS
EFFICIENCY
ELECTRIC POTENTIAL
ELECTRODES
ENERGY RANGE
ERRORS
FREQUENCY
IRRADIATION
LENSES
LOSSES
MAGNETIC FIELDS
MAGNETS
MICHIGAN
MOMENTUM
OPERATION
PHYSICS
PLANNING
POLONIUM
PREPARATION
PRODUCTION
PROTON BEAMS
RADIO WAVES
SHIELDING
TESTING