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Message ID: 295     Entry time: Tuesday, January 14, 2025, 16:28
Author: Darwin Ortiz Rosales 
Target Material: UO2/C 
Target Oven W.O#: conditioning oven#3 
Source: LP TUBE 
Status: Done 
Subject: UCx250113 reduction 

Tuesday, January 14, 2025, 16:26

 

Cartridge #22 loaded with 211 discs including 3 analysis discs

To be reduced inside a Ta container tube.  Tube wrapped in 3 Ta foil heatshields.

Reduction for 4 hours and then 8 hours @ 450A (see docushare 177267)

Good Vacuum: 5.0e-04 Torr

Bad Vacuum: 5.0e-02 Torr

Initial pressure is 1.6 e-06 Torr


Tuesday, January 14, 2025, 16:27

Left system to pump down earlier in the day. 


Wednesday, January 15, 2025, 10:23

Earlier started initial ramp to 60A at 2A/min

Initial pressure IGP1 was 2.65e-06 Torr

Pressure stable now at 2.40e-5 Torr

Starting ramp to 90 A at 1A/min


Wednesday, January 15, 2025, 18:06

top current = 440A held for four hours


 Wednesday, January 15, 2025, 22:07

setting temperature to 450A

IGP1= 9.0 e-6 Torr

5.5 V was final voltage


Thursday, January 16, 2025, 06:05

IGP1=2.12 e-6 Torr

4.5V, 450A on TGHT

ramp down at -2A/min

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