On Jan. 9 we did the PIE on Ta#66. Opened the heat shield and removed the EE. The inside of the heat shield was very black with lots of flakes falling off. The target itself looked overheated, and the container looked pretty bad for a Ta target. The outside of the EE looked perfect but after removing it there was a lot of black stuff on the side and we saw that the Re foil was curled up. Jens said during the runtime that he saw something that looked like a wire in the beam path, so maybe this was it.

Electrical check and leak check at SHC. NO leak. electrical check ok.   Before target on, A is short to PQ, RU is short to HS ( 60KV bias) as we measured before.

Ta#59 has been removed from TM2 and it is now ready for electrical check.

See attachment

Ta#57 has been removed from TM4.

Ta#56 has been installed onto TM4 with new fasteners. High current fasteners torqued to 130 in lbs.

RIB "shield" has been removed in  preparation for insertion of new optics tray.

Containment box has been replaced onto TM2, interior of containment box vacuumed, and Ta#54 installed with new fasteners (high current torqued to 130 in lbs).

Ta#52 has been removed from TM$ and UCx#21 installed with new mounting and high current hardware. High current fasteners torqued to 130 in lbs.

This afternoon Ta#51 was removed from TM2 and SiC#36 installed.

All new fasteners used. High current fasteners torqued to 130 in lbs.

Ta#50 has been was removed from TM4 on Wednesday, January 25th.

Ta#49 has been installed on TM2 and tested. All high current fasteners torqued to 130 in lbs.

Ta#48 has been removed from TM2 and SiC#33 installed.

Ta#48 has been installed onto TM2. Also new window gaskets were installed.

High current fasteners were torqued to 130 in lbs. Shutter side of the containment box recieved new fasteners.

Ta#46 has been removed from TM4.

Ta#45 has been installed onto TM4 and is ready for leak and electrical check. High current fasteners torqued to 130 in.lbs.

Ta#45 has been inserted into the hot cell. Swipe taken of inner tool port area: 100000 counts/min.

Monday, March 30, 2015, 08:59: Reset chiller by switching on off power (fault 2)

Monday, March 30, 2015, 09:02: Switched on CHILL:CP2, TS5 at 34 C

Monday, March 30, 2015, 10:24 : Cage locked. EE to GND. BIAS and EL ON.

Troubleshooting BIAS current limiting. Turned out to be a EPICS initialization issue. Resolved by setting/changing the current limit again in EPICS.

Monday, March 30, 2015, 14:00: BIAS/EL 18 / 9 kV

Monday, March 30, 2015, 14:16: BIAS/EL 24 / 12 kV

Monday, March 30, 2015, 16:03: BIAS/EL 30 / 15 kV. Occasional sparking while stepping up since 26 kV

Monday, March 30, 2015, 16:13: BIAS/EL 30.8 / 15 kV. 110% of scheduled 28 kV. BIAS/EL 0.04 / 0.09 mA

Monday, March 30, 2015, 17:26 : Maintained BIAS over 1 hour. One spark after.

Monday, March 30, 2015, 17:27 : BIAS / EL off.

Tuesday, March 31, 2015, 08:12: Cage access. EE to EE PS. Cage locked.

Tuesday, March 31, 2015, 08:24: BIAS/EL/EE at 30.8 / 15 / 1 kV

Tuesday, March 31, 2015, 08:26 : EE to 2 kV, 1.96 mA

Tuesday, March 31, 2015, 08:46: No sparks for 20 min.

Tuesday, March 31, 2015, 08:48 : BIAS/EL/EE at 20 / 9.3 / 1.5 kV

Tuesday, March 31, 2015, 08:57: Started auto ramping of heaters to 580 / 230 A at 2 A/min.

Tuesday, March 31, 2015, 10:54: TBHT at 230 A

Tuesday, March 31, 2015, 14:05: TGHT at 580 A

Tuesday, March 31, 2015, 14:21: BIAS/EL/EE to 30.8 / 15 / 2 kV

Tuesday, March 31, 2015, 17:48: Source stable for 4h

Tuesday, March 31, 2015, 18:20: Lowered IAS/EL/EE to 20 / 9.3 / 1.5 kV. IG2 at 6.2E-6 T

Tuesday, March 31, 2015, 21:27: Starting ramp down at 15/12 A/min. IG2 at 6.8E-6 T

Tuesday, March 31, 2015, 21:51: BIAS/EL/EE to zero and off. IG2 at 6.6E-6 T

Tuesday, March 31, 2015, 22:17: TGHT and TBHT off

Tuesday, March 31, 2015, 22:41: Turbos off.

Tuesday, March 31, 2015, 22:42: Water off.

Ta#44 has been removed from TM4 and UCx#11 has been installed and is ready for testing.

New fasteners were installed for all mounting and current connections.

High current fasteners were torqued to 130in lbs.

Ta#42 has been installed onto TM4. The "new" 9 pin connector was not an issue...attually went on better than any other previous one. Leaving the mounting screws loose on the target half allowed use of the manipulator to center the pins and insert them with ease.

Ta#40 has been installed.

Leak checking and high voltage tomorrow before the move.