Title :
Linac pulsed quad power supply
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL, USA
Abstract :
Fermilab is updating the linac by replacing one-half of the system in order to double the beam energy. Quadrapole magnets are used to focus the proton beam as it travels through the linac. This paper describes the power supply used to drive the magnets. The pulsed quadrapole supply generates a 2 ms half sine wave pulse flat on top for 450 μs within +/-0.2% of the maximum current of 200 amps. The flattop is achieved by a third harmonic circuit added to the resonant discharge circuit. Charge recovery is included in this system with >70% being recovered. A total of four pulsers are powered from one main supply. Remote control systems are used to operate, send, and receive data. Each pulser unit common floats for minimum noise transmission. Safety and minimum noise transmission were factors included in the design of the complete system
Keywords :
linear accelerators; power supplies to apparatus; proton accelerators; pulsed power technology; 200 A; 450 mus; linac pulsed quad power supply; noise transmission; proton beam; pulsed quadrapole supply; quadrapole magnets; resonant discharge circuit; third harmonic circuit; Circuit noise; Control systems; Linear particle accelerator; Magnets; Particle beams; Power supplies; Pulse generation; Pulsed power supplies; RLC circuits; Resonance;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.308601
