Performance of a cryogenic vacuum system (COLDEX) with an LHC type beam |
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Authors: | V. Baglin I.R. Collins B. Jenninger |
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Affiliation: | CERN, 1211 Geneva 23, Switzerland |
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Abstract: | The cold bore experiment installed in the super proton synchrotron has been used to study the performance of a vacuum system operating at cryogenic temperatures in the presence of a large hadron collider (LHC) type proton beam. The ∼2 m long cryostat, which can be cooled below 3 K, is fitted with an actively cooled beam screen which can be temperature controlled between 5 and 100 K. Molecular desorption and deposited heat load measurements, with or without gas pre-condensation, have been performed. Implications to the LHC design and operation will be discussed. |
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Keywords: | 29.27.Bd 07.20.Mc 68.43.Rs 29.20.Dh |
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