Pulsed power supply for PAR injection/extraction septum magnet

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Description

A 22.5 {mu}H, 22.5 m{Omega} transformer septum magnet must be pulsed at a 60 Hz rate to inject beam from a 450 MeV positron linac into a positron accumulator ring (PAR) and to extract beam from it. Of the 60 pulses per second the first 24 are used for injection and the 30th for extraction. The 25th through the 29th are not used. This pattern is repeated continuously. A design study was performed of the power supply proposed in the APS Title I design. This supply produces a pulse that is approximately a half-sine-wave with a base width of approximately … continued below

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18 p.

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McGhee, D. G. September 23, 1990.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 82 times. More information about this report can be viewed below.

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Description

A 22.5 {mu}H, 22.5 m{Omega} transformer septum magnet must be pulsed at a 60 Hz rate to inject beam from a 450 MeV positron linac into a positron accumulator ring (PAR) and to extract beam from it. Of the 60 pulses per second the first 24 are used for injection and the 30th for extraction. The 25th through the 29th are not used. This pattern is repeated continuously. A design study was performed of the power supply proposed in the APS Title I design. This supply produces a pulse that is approximately a half-sine-wave with a base width of approximately 1/3 ms; its peak current is adjustable from 3.5kA to 4.7kA and is repeatable within {+-}0.05%. The septum steel is reset by a half-sine pulse of reverse polarity a few milliseconds after the forward current pulse. No beam is present during reset. The use of the transformer design minimizes the cost of the capacitors used for energy storage.

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18 p.

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OSTI as DE95015570

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  • Other Information: PBD: 23 Sep 1990

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • September 23, 1990

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  • Dec. 19, 2015, 7:14 p.m.

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  • Jan. 25, 2023, 9:31 a.m.

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McGhee, D. G. Pulsed power supply for PAR injection/extraction septum magnet, report, September 23, 1990; Illinois. (https://digital.library.unt.edu/ark:/67531/metadc793157/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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