The upgrade project for the RF system for the Brookhaven AGS

Conference · Fri Jan 01 04:00:00 EST 1993

OSTI ID:7368641

Brennan, J M; Ciardullo, D J; Hayes, T; Meth, M; McNerney, A J; Otis, A; Pirkl, W; Sanders, R; Spitz, R; Toldo, F; Zaltsman, A

The AGS operates a varied program of proton, heavy ion, and polarized proton acceleration for fixed-target experiments and will soon serve as the injector of these beams into the Relativistic Heavy Ion Collider, RHIC. The new Booster synchrotron extends the range of intensities and masses that can be accelerated. The 1.5 GeV injection energy increases the space charge limit by a factor of four to more than 6 [times] 10[sup 13] protons per pulse. To accommodate the increased beam current the rf system will be upgraded to provide more power and lower impedance to the beam. The flexibility of the rf system will also be enhanced by virtue of a new rf beam control system and installation of individual tuning servos for the ten rf cavities. The fundamental necessity for upgrading the rf system is to deliver more power to the accelerating beam. Three key ingredients of the upgrade project addressing this problem is (1) new power amplifiers provide the necessary power, and are closely coupled to the cavities, (2) wideband rf feedback reduces the effective impedance by a factor of 10, and (3) the capacitors loading the acceleration gaps (four per cavity) are increased from 275 pF to 600 pF.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 7368641
• Report Number(s): BNL-48241; CONF-930511--198; ON: DE93016153
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
ACCELERATORS
AMPLIFIERS
BROOKHAVEN AGS
CAVITY RESONATORS
CYCLIC ACCELERATORS
ELECTRONIC EQUIPMENT
EQUIPMENT
FEEDBACK
MODIFICATIONS
POWER AMPLIFIERS
RESONATORS
RF SYSTEMS
SYNCHROTRONS