It has been noted that restoring communications to the RF system PC104 iocs is painfully slow. Sam was trying to restore the south linac C100 zones for over an hour yesterday cycling power multiple times to restore comm. Chris Kerns has experienced the same issue. I spoke with Brad Cumbia and he says the network is fine...
Majority of the PSS Certification tasks are complete.
For the reminder of the certification only Injector segment is required.
In cooperation with the Source Group we'll do the Gun High Voltage tests Thursday afternoon. Other tests requiring the beam will be performed some time next week, when the new cathode is available.
Following RF zones were not ready therefore not tested functionaly: 1L07 and 1L12.
The following DC Box Supplies were not ready therefore not tested functionally: TSB5C.
These devices will be tested in the following weeks at opportune time.
The following cavity histories have been updated:
RF Status: Bad
Tuner Status: Good
Comment: Had a Klystron Cathode Current fault. Both the CPS breaker and the MDP breaker tripped (the second time the MDP breaker tripped.). Bypassed cavity #7 and the zone came up into high voltage.
After leaving the DILO transfer system with all valves closed to Gun2 HVPS SF6 tank yesterday around 14:00 (we had to leave the injector for PSS certs), Bubba re-started the DILO compressors this morning around 5 am. Around 12 noon, the vacuum in the HVPS tank had not decreased significantly using the compressors in the DILO transfer system. Then Bubba installed a small diaphragm pump between the HVPS SF6 tank and the DILO compressors. By 14:30 the vacuum had dropped to about 20 inHg. We stopped and closed all valves.