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

DE2009946452

Publication Date	2009
Personal Author	Smith, J. C.; Anzalone, G.; Doyle, E.; Keller, L.; Lundgren, S.
Page Count	22
Abstract	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.
Keywords	Collimators Testing Accidents After-heat Copper Design Graphite Simulation Thermal expansion Compliance
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Stanford Linear Accelerator Center, CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200913
Contract Number	DE-AC02-76SF00515

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

Prototype Testing for a Copper Rotatable Collimator for the LHC Collimation Upgrade.
DE2009946452

Publication Date	2009
Personal Author	Smith, J. C.; Anzalone, G.; Doyle, E.; Keller, L.; Lundgren, S.
Page Count	22
Abstract	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.
Keywords	Collimators Testing Accidents After-heat Copper Design Graphite Simulation Thermal expansion Compliance
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Stanford Linear Accelerator Center, CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200913
Contract Number	DE-AC02-76SF00515