Welcome at the reception building 33 & access cards

• Eric Montesinos (CERN)

Introduction & practical information

• Eric Montesinos (CERN)

CERN - Last years and future perspectives

• Eric Montesinos (CERN)

Progress of FPCs development at Peking University

• Fang Wang (Peking University)

FPCs developments for the DC-SRF photoinjector and the main two 9-cell accelerators, including the design, fabrication, high power conditioning, power test and operation on the cavity. The emphases will be placed on the 1.3GHz CW operation FPCs refering to the TTF-III FPCs.

Progress of FPCs development at IHEP

• Tongming Huang (IHEP)

The FPCs of superconducting cavities developed for High Energy Photon Source (HEPS) and CSNS-Upgrade Project shall be presented, including design, fabrication, on-test-bench high power conditioning and on-cavity high power test issues.

FPC activities at DESY

• Denis Kostin (DESY)

progress since 2019, our last meeting. We went through FLASH linac upgrade with two new accelerating modules assembled twice and successful FPC movers upgrade on an old module. Plans for the Eu-XFEL CW/HDC (high duty-cycle operation) being solidified and defined, which means also different operation mode for the FPC. We finally put the FPC test stand into the operation at DESY in the AMTF hall. We can test 4 FPCs simultaneously and did 2 tests each with 1 pair, so that test-stand is fully operational now. Currently we testing a module with modified FPC on CMTB in CW/HDC mode up to 4kW per cavity with an IOT and it is still going well on FPCs, as on cavities. We prepare still another test in AMTF hall with another module and plan to do CW/HDC single cavity test with SSA source.

PIP-II Fundamentals Couplers

• Sergey Kazakov (FNAL)

Visit of CERN SPS Solid State Amplifier builging

Open discussion and summary