COMMENT ON RF Maintenance June 24th, 2026
1L15-2 Third kly. resistor blown in cav.2 and this one on first HV attempt with DC overload. Pulled jumper and bypassed until klystron can be looked at. 1L13-2 has problem with getting gradient over 7 Mv/m. Detune flies off with small gradient changes until CRFP rails over 5kW and quenches. Replaced RFCM but still has identical problem. Both times there is good drive but TDETA will not track back in and CRFP is very unsteady. Could be 2.5w amp, driveline or klystron but can't tell until we lock it up. Set back at 7Mv/m and optimized.










