Dual Power Supplies for PEP-II Injection Kickers

Originally the PEP-II injection kickers where powered by one power supply. Since the kicker magnets where not perfectly matched, the stored beam got excited by about 7% of the maximum kicker amplitude. This led to luminosity losses which were especially obvious for trickle injection when the detecto...

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Main Authors: Olszewski, J., Decker, F.-J., Iverson, R.H., Kulikov, A., Pappas, C.
Format: Conference Proceeding
Language:English
Subjects:
Cables
Capacitors
Magnetic modulators
Magnets
Optical reflection
Power supplies
Reservoirs
Thyratrons
Timing
Voltage
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creator Olszewski, J.
Decker, F.-J.
Iverson, R.H.
Kulikov, A.
Pappas, C.
description Originally the PEP-II injection kickers where powered by one power supply. Since the kicker magnets where not perfectly matched, the stored beam got excited by about 7% of the maximum kicker amplitude. This led to luminosity losses which were especially obvious for trickle injection when the detector is on for data taking. Therefore two independent power supplies with thyratrons in the tunnel next to the kicker magnet were installed. This also reduces the necessary power by about a factor of four since there are no long cables that have to be charged. The kickers are now independently adjustable to eliminate any non-closure of the kicker system and therefore excitation of the stored beam. Setup, commissioning and fine tuning of this system are discussed.
doi_str_mv 10.1109/PAC.2005.1591711
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2152-9582
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Cables
Capacitors
Magnetic modulators
Magnets
Optical reflection
Power supplies
Reservoirs
Thyratrons
Timing
Voltage
title Dual Power Supplies for PEP-II Injection Kickers
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