High Beta Cavity Optimization for ISAC-II

The linac for ISAC-II comprises twenty cavities of medium β quarter wave cavities now in the production phase. A second stage will see the installation of∼ 20 MV of high β quarter wave cavities. The cavity structure choice depends on the efficiency of operation, cost, stability, beam dynamics and schedule. Two main cavity types are considered; a low frequency 106 MHz option and a high frequency 141 MHz cavity. We compare and contrast the cavity choices.

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