Thursday, February 16, 2017, 15:04

Target container was previously coated with TaC spray and sintered.

Container is wrapped with 3 layers of Ta-heat shield, including the center block

The target consists of 200 discs of UCx with 7.3cm in length [6 packs of 5 + 170 single discs].

Discs in target are arranged as follows: 5singles / 1pack / 40singles / 1pack / 40singles / 2packs / 40singles / 1pack / 40singles / 1pack / 5singles

A regular TaC coated endcap is inserted left, wrt the ionizer tube pointing down.

The right side is open with a TaC coated spring to help hold materials in.

The chamber is currently pumping down.

TGHT will be ramped up to 475A at 0.1A/min [same current used to reach 1900C in evap2 when sintering TaC coating - elog340 evap2]

Parameter setup: 5.0e-5 good vac, 6.0e-5 bad vac.

NOTE: small bug in evap1 IOC. when current is tapped up 1A, it auto-taps back down 0.01A. should be OK, but will keep an eye on evaporator during conditioning process and acct for changes.

 Friday, February 17, 2017, 09:56

IG1 = 1.56e-6 Torr

Tapped up manually to 35A

Vacuum stable.

IG1 = 1.56e-6 Torr.

Initiating auto-ramp.

 Friday, February 24, 2017, 15:09

Local TGHT 473 A 4.63 V

Monday, February 27, 2017, 09:06 

Target has remained at max setpoints for 20+hrs [epics problems and archives currently not working so unable to find out exact time]

TGHT = 475A, 4.67V

IG1 = 1.48e-6 Torr

Conditioning process is now complete.

Initiating auto-cool at 1.0A/min

 Tuesday, February 28, 2017, 12:00

UCx conditioning process complete.

Vented in Ar and transferred to glove box this morning.

 Tuesday, April 11, 2017, 09:44

A few photos taken of the target post-conditioning.

Note a few flakes came out from one end - end disc from 'open' side flaked off.