The PEP-II abort kicker system

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Description

The PEP-II project has two storage rings. The HER (High Energy Ring) has up to 1.48 A of electron beam at 9 GeV, and the LER (Low Energy Ring) has up to 2.14 A of positron beam at 3.1 GeV. To protect the HER and LER beam lines in the event of a ring component failure, each ring has an abort kicker system which directs the beam into a dump when a failure is detected. Due to the high current of the beams, the beam kick is tapered from 100% to 80% in 7.33 uS (the beam transit time around ... continued below

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4 p.

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Lamare, J de; Donaldson, A. & Kulikov, A. Lipari, J. July 1, 1997.

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Description

The PEP-II project has two storage rings. The HER (High Energy Ring) has up to 1.48 A of electron beam at 9 GeV, and the LER (Low Energy Ring) has up to 2.14 A of positron beam at 3.1 GeV. To protect the HER and LER beam lines in the event of a ring component failure, each ring has an abort kicker system which directs the beam into a dump when a failure is detected. Due to the high current of the beams, the beam kick is tapered from 100% to 80% in 7.33 uS (the beam transit time around the time). This taper distributes the energy evenly across the window which separates the ring from the beam dump such that the window is not damaged. The abort kicker trigger is synchronized with the ion clearing gap of the beam allowing for the kicker field to rise from 0-80% in 370 nS. This report discusses the design of the system controls, interlocks, power supplies, and modulator.

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4 p.

Notes

INIS; OSTI as DE97007960

Source

  • 17. IEEE particle accelerator conference, Vancouver (Canada), 12-16 May 1997

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  • Other: DE97007960
  • Report No.: SLAC-PUB--7590
  • Report No.: CONF-970503--189
  • Grant Number: AC03-76SF00515
  • Office of Scientific & Technical Information Report Number: 513519
  • Archival Resource Key: ark:/67531/metadc691321

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  • July 1, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Feb. 5, 2016, 7:37 p.m.

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Lamare, J de; Donaldson, A. & Kulikov, A. Lipari, J. The PEP-II abort kicker system, article, July 1, 1997; Menlo Park, California. (digital.library.unt.edu/ark:/67531/metadc691321/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.