Monday, January 29, 2018, 09:28, Marla Cervantes, UO2/C, 40282-2 , TARGET BOAT, In progress, Carbonizing UO2/C discs for 1stepUCx in graphite sample container _#7
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Monday, January 29, 2018, 11:07, Marla Cervantes, UO2/C, 40282-2 , TARGET BOAT, Problems, Carbonizing UO2/C discs for 1stepUCx in graphite sample container _#7
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Monday, January 29, 2018, 14:25, Marla Cervantes, UO2/C, 40282-2 , TARGET BOAT, Problems resolved, Carbonizing UO2/C discs for 1stepUCx in graphite sample container _#7
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Tuesday, January 30, 2018, 16:07, Marla Cervantes, UO2/C, 40282-2 , TARGET BOAT, Done, Carbonizing UO2/C discs for 1stepUCx in graphite sample container _#7
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Marla Cervantes wrote: |
Marla Cervantes wrote: |
Marla Cervantes wrote: |
Monday, January 29, 2018, 09:26
35 circles of 14 mm diameter were packed into a graphite sample container.
35 x UO2/C circles = 4.94 g
Graphite container = 5.03 g
Graphite tube is placed inside a target boat.
Boat previously coated with TaC and sintered.
Ta-target boat is wrapped with 3 new Ta foils for heat shielding and the boat was installed in Evap1.
Chamber currently pumping down.
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Monday, January 29, 2018, 11:06
A power outage around 10 am tripped off EVAP1.
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Monday, January 29, 2018, 14:22
Water flow turned on.
Chamber set to pumping down.
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Tuesday, January 30, 2018, 16:06
Initial IGP1 = 9.4x10e-7 Torr
Tapped up entire process manually to 520A in 32 min
TGHT = 520 A, 5.45 V
Vacuum coming down indicating carbonization process complete
Will remain at max setpoint for 4 hrs to ensure full carbonization before cooling down.
Tuesday, January 30, 2018, 18:40
Initiating auto-cool at 2.0 A/min
Wednesday, January 31, 2018, 14:00
Ar tank was changed.
Thursday, February 01, 2018, 12:58
EVAP1 was vented with Argon and UCx was removed form evaporator 1.
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