TEST RESULTS OF SUPERCONDUCTING CAVITIES PRODUCED AND PREPARED COMPLETELY IN INDUSTRY

Superconducting cavities generally have been prepared for operation by the laboratory using the cavities for own purpose. For a number of recent projects ACCEL is producing and preparing the cavities including the rf testing of cavities or accelerating modules ready for operation. We report on test results of those cavities. The preparation of the cavities includes chemical treatment (BCP), rinsing with high pressure water and assembly in a clean room. The following cavity types were or will be treated: 400 MHz single cell cavities for LHC, 500 MHz single cell cavities of the Cornell CESR design for our superconducting accelerating modules, 1300 MHz TESLA type cavities, 176 MHz and 160 MHz half-wave resonators and a 352 MHz CH-mode cavity for io