The build up of a test station facility for the SIS100 superconducting modules

Abstract

Abstract More than eighty quadrupole modules, especially designed and fabricated at JNIR in Dubna, will be used at the FAIR facility in Darmstadt. Prior the installation in the new accelerator SIS 100 tunnel, the modules need to be tested by an independent laboratory. The required test have to be the same for all the modules and the answer will be the benchmark for the final decision on accepting or rejecting the module. With this target in mind, a system with as much as possible automatisms will be realized. Three kinds of tests will be performed: mechanical, thermal and electrical. The mechanical test will concern on the search of vacuum leaks, if present, and on the measurement of the limit pressure reached in the vessel. The thermal test will have to check that the various thermometer, scattered inside the modules, will be correctly working and that the heaters are able to deliver the generated heat. The electrical tests will verify the insulation to ground of both the devices and the superconducting coils and bus-bars. All tests will be done in a thermal sequence: at room temperature, at the cryogenic working temperature of 4.5 K, and finally at room temperature again.