CLASSE NEWS | 3 Apr 2014
The Cornell ERL 7-cell cavities for the Main Linac Cryomodule (MLC), six 7-cells in total — have been fabricated, processed, and tested in the Cornell Laboratory for Accelerator-based Sciences and Education (CLASSE) vertical test pit. All have surpassed the specification values (Eacc=16.2MV/m with Q0 of 2.0e10 at 1.8K). In fact, the achieved Q0 during VT were much higher than specs, the average of Q0 is almost 3e10 at 1.8K. Through these 7-cell VTs, we have successfully demonstrated our high reliability in fabrication, high reproducibility of processes, and high yield of the results. The performance was achieved with a 100 % yield and needed no reprocessing. This is an important milestone for all future accelerators with high-Q0 cavities.
All 7-cell cavities for the ERL Main-Linac Cryomodule pass vertical tests
The Cornell ERL 7-cell cavities for the Main Linac Cryomodule (MLC), six 7-cells in total — have been fabricated, processed, and tested in the Cornell Laboratory for Accelerator-based Sciences and Education (CLASSE) vertical test pit. All have surpassed the specification values (Eacc=16.2MV/m with Q0 of 2.0e10 at 1.8K). In fact, the achieved Q0 during VT were much higher than specs, the average of Q0 is almost 3e10 at 1.8K. Through these 7-cell VTs, we have successfully demonstrated our high reliability in fabrication, high reproducibility of processes, and high yield of the results. The performance was achieved with a 100 % yield and needed no reprocessing. This is an important milestone for all future accelerators with high-Q0 cavities.