Prototype Testing for a Copper Rotatable Collimator for the LHC Collimation Upgrade

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Description

The Phase II upgrade to the LHC collimation system calls for complementing the robust Phase I graphite collimators with high Z Phase II collimators. The design for the collimation upgrade has not been finalized. One option is to use metallic rotatable collimators and testing of this design will be discussed here. The Phase II collimators must be robust in various operating conditions and accident scenarios. A prototype collimator jaw referred to as RC0 has been tested for both mechanical and thermal compliance with the design goals. Thermal expansion bench-top tests are compared to ANSYS simulation results. The prototype has also ... continued below

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22 pages

Creation Information

Smith, Jeffrey Claiborne; Anzalone, Gene; Doyle, Eric; Keller, Lewis; Lundgren, Steven; Markiewicz, Thomas Walter et al. January 20, 2009.

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Description

The Phase II upgrade to the LHC collimation system calls for complementing the robust Phase I graphite collimators with high Z Phase II collimators. The design for the collimation upgrade has not been finalized. One option is to use metallic rotatable collimators and testing of this design will be discussed here. The Phase II collimators must be robust in various operating conditions and accident scenarios. A prototype collimator jaw referred to as RC0 has been tested for both mechanical and thermal compliance with the design goals. Thermal expansion bench-top tests are compared to ANSYS simulation results. The prototype has also been tested in vacuum bake-out to confirm compliance with the LHC vacuum spec. CMM equipment has been used to verify the flatness of the jaw surface after heat tests and bake-out.

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22 pages

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  • Report No.: SLAC-TN-08-004
  • Grant Number: AC02-76SF00515
  • DOI: 10.2172/946452 | External Link
  • Office of Scientific & Technical Information Report Number: 946452
  • Archival Resource Key: ark:/67531/metadc900323

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • January 20, 2009

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

Description Last Updated

  • Dec. 7, 2016, 7:15 p.m.

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Smith, Jeffrey Claiborne; Anzalone, Gene; Doyle, Eric; Keller, Lewis; Lundgren, Steven; Markiewicz, Thomas Walter et al. Prototype Testing for a Copper Rotatable Collimator for the LHC Collimation Upgrade, report, January 20, 2009; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc900323/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.