Thursday, April 20, 2017, 11:31

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 220 discs of UCx with 7.55cm in length [6 packs of 5 + 190 single discs].

Discs in target are arranged as follows: 1pack / 45singles / 1pack / 50singles / 2packs / 50singles / 1pack / 45singles / 1pack

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 490A at 0.1A/min [same current used to reach 1900C in evap2 when sintering TaC coating - elog350 evap2]

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

 Friday, April 21, 2017, 10:14

IG1 = 2.47e-6 Torr

Tapped up manually to 35A.

Waited ~1.5hrs, vacuum stable IG1 = 2.37e-6 Torr

Initiating auto-ramp.

 Thursday, April 27, 2017, 09:19

IG1 = 4.611e-6 Torr

TGHT = 490A, 4.93V

Target has remained at max setpoints for ~9hrs.

Initiating auto-cool at 1.0A/min

 Tuesday, May 16, 2017, 13:21

Update: 

Target looks good, see photos attached post sintering.

Gold tint on container commonly seen with the Uranium targets.

Orange colouring on inside of container end - also common.

Both endcaps in and handed off to assembly yesterday.