SPOKE CAVITIES: AN ASSET FOR THE HIGH RELIABILITY OF A SUPERCONDUCTING ACCELERATOR STUDIES AND TESTS RESULTS OF A β= 0.35, TWO-GAP PROTOTYPE AND ITS POWER COUPLER AT IPN ORSAY

摘要

Taking into account the PDS-XADS requirements concerning accelerating field, quality factor and reliability, two spoke-type cavities have been designed at IPN Orsay. One of them has been successfully tested and the second one is currently being fabricated. This paper reports on the excellent performance of the first cavity, substantially exceeding the requirements, which make spoke cavities an attractive solution for a reliable PDS-XADS proton driver.