Friday, November 22, 2019, 19:02: The new design for the PEEK irradiation will be tested.

Blinds were removed and a new LP-SIS assembly with a modify heatshield was installed. Three termocuples installed.

Friday, November 22, 2019, 19:04: Roughing 

Friday, November 22, 2019, 19:38: Turbos on

Friday, November 22, 2019, 19:46: TSGIG1 on

Monday, November 25, 2019, 15:43: Vacuum stable@ 5.73E-7T

Monday, November 25, 2019, 15:47: Waterlines open. No response on Vacuum

Monday, November 25, 2019, 15:51: RGA on.

Tuesday, November 26, 2019, 08:41: Vacuum stablet@ 5.2E-7T

 Tuesday, November 26, 2019, 15:04: Power on

Tuesday, November 26, 2019, 17:17: Auto-ramping  to 300A/150A on the TGHT/TBHT @ 6 A/min

Tuesday November 26, 2019 20:00: Thermocouple 3 gives signs to have a bad contact with the HS. "Luckily" it is the one attached to the HS itself. TH 1 and 2 show similar temperatures below 40degC at 500A. Ramping to 600A

 Tuesday November 26, 2019 20:46: 600A TH1 and 2 around 40degC slightly going down. Tomorrow it will be known the final steady-state temperature. The test shows tho that the temperature evolves similarly between the copper piece and the Peek assembly. Showing good contact.

FM

Wednesday, November 27, 2019, 13:47: Th1=35, Th2=34.8, Th3=19.6 C.

Wednesday, November 27, 2019, 13:49: Closing Farady cage to proceed with HV tests.

Wednesday, November 27, 2019, 13:56: HV on. Optics set.

Wednesday, November 27, 2019, 14:01: RGA off to protect it from potential sparks.

Wednesday, November 27, 2019, 14:18: Bias/EE/EZL to 30/1.5/13 kV.\

Wednesday, November 27, 2019, 14:25: Bias/EE/EZL to 40/2.0/17 kV.

Wednesday, November 27, 2019, 14:28: Audible spark on top @ 48kV

Wednesday, November 27, 2019, 14:29: Bias/EE/EZL to 50/2.5/22 kV.

Wednesday, November 27, 2019, 14:35: Spark noticed on striptool, not audible.

Wednesday, November 27, 2019, 14:36: Audible spark on top. not as loud as previous one.

Wednesday, November 27, 2019, 14:39: Spark noticed on striptool, not audible.

Wednesday, November 27, 2019, 14:39: Moving to 55kV to condition for 10 minutes then coming down to 50kV

Wednesday, November 27, 2019, 14:42: Audible spark at 59kV. TP6 and CB knocked out.

Wednesday, November 27, 2019, 14:46: Bias/EE/EZL to 55/2.8/24 kV.

Wednesday, November 27, 2019, 14:50: Audible spark. TP6 , CB, optics knocked out..

Wednesday, November 27, 2019, 14:51: Audible spark. TP6 , CB, optics knocked out.

Wednesday, November 27, 2019, 15:01: Thermal incident (see elog 773)

Wednesday, November 27, 2019, 15:03: All HV to 0 V

Wednesday, November 27, 2019, 16:01: Resuming HV test. Max HV=50kV.

Wednesday, November 27, 2019, 16:10: Bias/EE/EZL to 30/1.5/13 kV.

Wednesday, November 27, 2019, 16:38: Bias/EE/EZL to 40/2.0/17 kV.

Wednesday, November 27, 2019, 16:50: Spark

Wednesday, November 27, 2019, 17:01: Spark

Wednesday, November 27, 2019, 17:09: Spark to EZL. Instabilitiesafter this, TBHT insulator glowing blue

Wednesday, November 27, 2019, 18:11:  Bias/EE/EZL to 0 kV.

Wednesday, November 27, 2019, 18:11: Auto-cooling at 10 A/min (2.5A/15s).

Wednesday, November 27, 2019, 19:13: IG1 off. Turbos off.

Wednesday, November 27, 2019, 20:35: Venting. Tighten the 4 bolts from the heatshields as they were not done before the tests. Removing thermocouples as they might be causing some sparks.

Wednesday, November 27, 2019, 20:42: Roughing

Thursday, November 28, 2019, 07:00: Turbo pumps on.

Thursday, November 28, 2019, 07:06: Ion gauge on.