Aggregator

• ELOG

Set quads back to 0. NLC100 total neutron dose rate increased from 6.8 to 15.1 R/hr, but is still down from the previous 19-20 R/hr.

1L23 gradients shown.

• ELOG

Fig 1: Cavity 1 - No significant change from 8 MV/m -> 9.5 MV/m

Fig 2: Cavity 2 - Roughly 1R/hr increase in C100 neutron rates going from 10 MV/m to 13 MV/m. An additional 3 R/hr going from 13.0 to 14.8 MV/m. This large increase in neutron dose rate seems to start at 14.0 MV/m.

• ELOG

The cavity started SOSing so I walked gradient down and was going to see if it wasn't tuned well. With a GLOD of -1.1 I could only get 0.06 kW of CRFP, and tuning showed we were on resonance. The attenuator is already at 0 dB. GASK has been rising for the past couple days.

• ELOG

Cavity started SOSing. OLT'd and zeroed the detune angle

• ELOG

On the 5th around noon the readback went to zero, but no impact on LO or IF in the zone or others downstream of it. No mention of any work on the zone in the logs, and zone was off at the time.