Tests of the low beta cavities and cryomodules for the SPIRAL 2 Linac
Résumé
The IRFU institute of CEA Saclay is in charge of the 12
low beta cryomodules that will be installed on the first
section of the SPIRAL 2 superconducting LINAC. Each
cryomodule houses a single QWR cavity at 88MHz and
E=0.07 cooled with liquid helium at 4.4 K. All
components of the cryomodules are manufactured by the
industry. The power coupler is provided by LPSC
Grenoble. The assembling and tests are performed by the
CEA.
The RF power tests (P max = 10 kW) were performed on
the qualifying cryomodule at the end of 2008 before
launching the order of the 11 serial cryomodules. The two
first cavities of the series were tested in vertical cryostat
before the summer 2009. A summary of these tests and
the present status of this project are reported