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Message ID: 92     Entry time: Monday, March 24, 2014, 17:53
Author: John Wong 
Target Material: UO2/C 
Target Oven W.O#:  
Source: TARGET BOAT 
Status: Done 
Subject: Processing UC2Flk_02 

 Monday, March 24, 2014, 17:50

UO2/C cast was prepared on March 21 and let dry over the weekend.  The cast looks pretty good, and it was rolled up and wrapped in a piece of graphite sheet. 

 

The Ta-target boat was wrapped with 3-layers of heat shield and installed in EVAP1.

Chamber is currently being pumped down.

Target will be ramped up to 520A at the rate of 0.1A/min.

Vacuum limit stop at 5.0e-5 Torr, backing off at 6.0e-5 Torr.


 Tuesday, March 25, 2014, 15:55

Chamber has been pumped down to 6.8e-6 Torr. BP 47mTorr.

Stepping up TGHT 35A/0.264V.  Vac stabilizing at 6.0e-5 Torr. 


Tuesday, March 25, 2014, 17:43

Auto-ramping initiated.


 Friday, April 11, 2014, 11:49

TGHT reached to max 520A.

Carbonization process is complete (see attachment)

IG at 9.3e-6 Torr.

 Cooling down TGHT at 2A/min

Will vent the chamber with Ar on Monday


 Monday, April 14, 2014, 16:41

UC2 flakes was removed from the chamber and transferred in to the Ar glovebox.

Evap off.


 

Attachment 1: UC2_flakes_batch#09-03242014.PNG  21 kB  Uploaded Friday, April 11, 2014, 12:50  | Show | Show all
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