Development of an abort gap monitor for high-energy proton rings

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The fill pattern in proton synchrotrons usually features an empty gap, longer than the abort kicker raise time, for machine protection. This gap is referred to as the ''abort gap'' and any particles, which may accumulate in it due to injection errors and diffusion between RF buckets, would be lost inside the ring, rather than in the beam dump, during the kicker firing. In large proton rings, due to the high energies involved, it is vital to monitor the build up of charges in the abort gap with a high sensitivity. We present a study of an abort gap monitor ... continued below

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Beche, Jean-Francois; Byrd, John; De Santis, Stefano; Denes, Peter; Placidi, Massimo; Turner, William et al. May 3, 2004.

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Description

The fill pattern in proton synchrotrons usually features an empty gap, longer than the abort kicker raise time, for machine protection. This gap is referred to as the ''abort gap'' and any particles, which may accumulate in it due to injection errors and diffusion between RF buckets, would be lost inside the ring, rather than in the beam dump, during the kicker firing. In large proton rings, due to the high energies involved, it is vital to monitor the build up of charges in the abort gap with a high sensitivity. We present a study of an abort gap monitor based on a photomultiplier with a gated microchannel plate, which would allow for detecting low charge densities by monitoring the synchrotron radiation emitted. We show results of beam test experiments at the Advanced Light Source using a Hamamatsu 5916U MCP-PMT and compare them to the specifications for the Large Hadron Collider

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INIS; OSTI as DE00834942

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  • Beam Instrumentation Workshop 2004, Knoxville, TN (US), 05/03/2004--05/06/2004

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  • Report No.: LBNL--56562
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 834942
  • Archival Resource Key: ark:/67531/metadc788508

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  • May 3, 2004

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  • Dec. 3, 2015, 9:30 a.m.

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  • Sept. 1, 2016, 7:11 p.m.

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Beche, Jean-Francois; Byrd, John; De Santis, Stefano; Denes, Peter; Placidi, Massimo; Turner, William et al. Development of an abort gap monitor for high-energy proton rings, article, May 3, 2004; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc788508/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.