Development of flat-topped RF voltage for TRIUMF

Conference · Tue Oct 01 04:00:00 EDT 1985 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6120688

Enegren, T; Durieu, L; Michelson, D; Worsham, R E

A Test Facility with operating characteristics equivalent to the TRIUMF RF system was used to generate a flat-topped RF dee voltage at full operating values. The fundamental at 23 MHz, and the third harmonic at 69 MHz were combined in the single resonator. No difficulty was encountered with multipactoring in the addition of the third harmonic when the fundamental voltage was on at the level of a few kilovolts. Since the TRIUMF dees are flattened coaxial lambda/4 lines with uniform dee-to-liner spacing, the natural frequencies f1 and f3 fall quite near a 3/1 ratio. Only a slight warping of the resonator in two locations that affect f1 and f3 differently is required to tune for a given f1 and for f3 = 3f1, precisely. With the two high power signals (1800 kW at 23 MHz and about100 kW at 69 MHz in TRIUMF; 45 kW and about4 kW in the Test Facility) combined in one resonator, rather large filters in addition to the impedance matching networks are required in each drive line for isolation of the transmitters. The results of the tests and the physical layout are described as well as the control systems for autotuning and for amplitude and phase of the two voltages.

• Research Organization: TRIUMF, Vancouver, B.C.
• OSTI ID: 6120688
• Report Number(s): CONF-850504-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-32:5
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
ACCELERATORS
CAVITY RESONATORS
CONTROL SYSTEMS
CYCLIC ACCELERATORS
CYCLOTRONS
DEES
ELECTRIC POTENTIAL
ELECTRODES
ELECTRONIC EQUIPMENT
EQUIPMENT
FREQUENCY RANGE
HARMONICS
ISOCHRONOUS CYCLOTRONS
MHZ RANGE
MHZ RANGE 01-100
OSCILLATIONS
PERFORMANCE TESTING
POWER RANGE 1-10 MW
POWER RANGE 10-100 KW
RESONATORS
RF SYSTEMS
TEST FACILITIES
TESTING
TRIUMF CYCLOTRON
TUNING
WAVE FORMS