Since CHESS resumed user operation after the CHESS-U upgrade project in October 2019, the facility has operated at 50mA positron current. Accelerator and beamline scientists have continuously and carefully optimized storage ring parameters and beamline performance to deliver high intensity and stable X-ray beams to users. This effort has allowed us to increase the ring current to 75 mA on Feb. 18 and now to 100mA on March 11th. Congratulations to everyone for achieving this milestone!
We plan to operate at 100mA until the end of this run (March 31th) and over time to further increase the storage ring current to the target value of 200mA.