Fermilab tevatron high level RF accelerating systems
Eight tuned rf cavities have been installed and operated in the F0 straight section of the Tevatron. Their mechanical placement along the beam line enables them to be operated for colliding beams as two independent groups of four cavities, group 1-4 accelerating antiprotons and group 5-8 accelerating protons. The only difference is that the spacing between cavities 4 and 5 was increased to stay clear of the F0 colliding point. The cavities can easily be rephased by switching cables in a low-level distribution system (fan-out) so that the full accelerating capability of all eight cavities can be used during fixed target operations. Likewise, the cables from capacitive probes on each cavity gap can be switched to proper lengths and summed in a fan-back system to give an rf signal representing the amplitude and phase as ''seen by the beam,'' separately for protons and antiprotons. Such signals have been used to phase lock the Tevatron to the Main Ring for synchronous transfer. A cavity consists of two quarter-wave resonators placed back to back with a coaxial drift tube separating the two accelerating gaps by ..pi.. radians. The cavities are very similar to the prototype which has been previously described/sup 3/ and is operating as Station 8 in the Tevatron. Only additional water cooling around the high current region of the drift tube supports and a double loop used to monitor the unbalance current through the Hipernom mode damping resistor have been added. Each cavity has a Q of about7100, a shunt impedance of 1.2 M..cap omega.., and is capable of running cw with a peak accelerating voltage of 360
- Research Organization:
- Fermi National Accelerator Laboratory, Batavia, 60510 IL
- OSTI ID:
- 6076907
- Report Number(s):
- CONF-850504-; TRN: 86-009478
- Journal Information:
- IEEE Trans. Nucl. Sci.; (United States), Vol. NS-32:5; Conference: Particle accelerator conference, Vancouver, Canada, 13 May 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
FERMILAB TEVATRON
RF SYSTEMS
ANTIPROTON BEAMS
BEAM MONITORING
BEAM TRANSPORT
CAVITY RESONATORS
COLLIDING BEAMS
CONFIGURATION
POWER AMPLIFIERS
PROTON BEAMS
ACCELERATORS
AMPLIFIERS
ANTINUCLEON BEAMS
ANTIPARTICLE BEAMS
BEAMS
CYCLIC ACCELERATORS
ELECTRONIC EQUIPMENT
EQUIPMENT
MONITORING
NUCLEON BEAMS
PARTICLE BEAMS
RESONATORS
SYNCHROTRONS
430303* - Particle Accelerators- Experimental Facilities & Equipment