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  Evaporator_1, Page 1 of 15  Not logged in ELOG logo
Entry  Monday, November 14, 2011, 11:56, Peter Kunz , UC2, 38634-10, LP-SIS, Done, UCx03: Conditioning up to 175A 0--0009.jpg0--0011.jpg

Evaporator was cleaned Nov 11 from after target was conditioned up to 175A. There was significant condensation of oily fluid on the left side where the target container was open (D-shaped end cap). There were also deposits in the hole for the ionizer, but the ionizer itself seemed to be clean.

Entry  Monday, September 03, 2012, 02:56, Peter Kunz , UC2, 39165-5, LP-SIS, In progress, Conditioning UCx05 
Organic/volatile burnoff complete at TGHT = 190A. Rampdown initiated.
Entry  Tuesday, September 04, 2012, 17:26, Peter Kunz , UC2, 39165-5, LP-SIS, In progress, Conditioning UCx05 
Organic gunk cleaned out. Beginning 2nd phase of conditioning.
Entry  Friday, September 07, 2012, 17:21, Peter Kunz , UC2, 39165-5, LP-SIS, In progress, Conditioning UCx05 
Target 6h at 520A. IEVAP:IG1 8.4e-6 Torr. Cool down sequence initiated.
Entry  Monday, September 10, 2012, 11:00, Peter Kunz , UC2, 39165-5, LP-SIS, In progress, Conditioning UCx05 UC2_05_conditioning.png
Plot of conditioning run: IEVAP:IG1, TGHT
Entry  Tuesday, July 02, 2013, 11:13, Peter Kunz , UO2/C, Target boat #2, , Done, Processing UC2 flakes (batch#05 - 18062013) UO2-C-01.png

 

1. stage - burning off organics complete

2. stage - carbonization began 1-8 am 2013/07/02

Entry  Thursday, November 23, 2017, 13:39, Marla Cervantes, UO2/C, 40282-2 , TARGET BOAT, Done, Carbonizing UO2/C discs for 1stepUCx in graphite sample container _#3 171124_1e-1.jpg

 Thursday, November 23, 2017, 13:34

Circles from cast 1 were used, the same as the last round of 1stepUCx [see elog i.d. 164]

A 14mm punch was used to punch out circles from the cast.

35 circles were packed into a graphite sample container.

35 x UO2/C circles = 5.75 g

Graphite container = 5.38 g

Graphite container is placed inside a target boat.

Boat previously coated with TaC and sintered.

Ta-target boat is wrapped with 3-layers of heat shield and installed in Evap1.

Chamber currently pumping down.


 Friday, November 24, 2017, 12:48

IGP1=1.3e-6 Torr

TGHT = 520A, 4.98V 

Vacuum went down indicating carbonization.

Will remain at max setpoint for the weekend.


 Monday, November 27, 2017, 09:58

IG1 = 2.6e-6 Torr

TGHT = 520A, 5.1V

Carbonization complete in 3 hrs and 30 min.

Initiating auto-cool at 2.0A/min


 Wednesday, November 27, 2017, 13:10

 IEVAP was vented in argon and sample removed/transferred to glove box on Friday.

Entry  Wednesday, January 10, 2018, 14:44, Marla Cervantes, UO2/C, 40282-1, TARGET BOAT, In progress, Carbonizing UO2/C discs for 1stepUCx in graphite sample container _#4 

 Wednesday, January 10, 2018, 14:44

Circles from cast 1 were used, the same as the last round of 1stepUCx [see elog i.d. 164]

A 14mm punch was used to punch out circles from the cast.

35 circles were packed into a graphite sample container.

35 x UO2/C circles = 5.75 g

Graphite container = 5.38 g

Graphite container is placed inside a target boat.

Boat previously coated with TaC and sintered.

Ta-target boat is wrapped with 3-layers of heat shield and installed in Evap1.

Chamber currently pumping down.

Entry  Wednesday, January 17, 2018, 13:47, Marla Cervantes, UO2/C, 40282-1, TARGET BOAT, Done, Carbonizing UO2/C discs for 1stepUCx in graphite sample container _#5 Carbonization-Batch5-180118.docx

 Monday, January 15, 2018, 13:37

35 circles of 14 mm diameter were packed into a graphite sample container.

35 x UO2/C circles = 5.58 g

Graphite container = 5.22 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.


Tuesday, January 16, 2018, 13:41 

Initial IGP1 = 9x10e-7 Torr

Tapped up entire process manually to 520A in 1.5 hrs

TGHT = 525 A, 5.64 V

Vacuum coming down nicely indicating carbonization process complete 

Will remain at max setpoint overnight to ensure full carbonization before cooling down.


Wednesday, January 17, 2018, 10:30

Initiating auto-cool at 2.0A/min 


Wednesday, January 17, 2018, 4:30

Vented with Argon and removed form evaporator 1

    Reply  Thursday, January 18, 2018, 11:56, Marla Cervantes, UO2/C, 40282-2 , TARGET BOAT, Done, Carbonizing UO2/C discs for 1stepUCx in graphite sample container TP1-off_#4 Carbonization-Batch4-110118-TP_off.docx

Laura Lambert wrote:

Marla Cervantes wrote:

 Wednesday, January 10, 2018, 14:44

Circles from cast 1 were used, the same as the last round of 1stepUCx [see elog i.d. 164]

A 14mm punch was used to punch out circles from the cast.

35 circles were packed into a graphite sample container.

35 x UO2/C circles = 5.75 g

Graphite container = 5.38 g

Graphite container is placed inside a target boat.

Boat previously coated with TaC and sintered.

Ta-target boat is wrapped with 3-layers of heat shield and installed in Evap1.

Chamber currently pumping down.

 Friday, January 12, 2018, 07:43

IGP1 = 0.0266 Torr

TGHT = 520A, 5.92V

Voltage has been climbing consistently since it has reached it's max setpoint, gone up ~0.8V in ~18hrs

Carbonization complete.

Initiating auto-cool at 2.0A/min

Will update later with more information on this process.


 Friday, January 12, 2018, 09:47

Turned the turbo pump back on, to ensure safe cooling.


 

 Monday, January 15, 2018, 10:00

Vented with Argon and removed from evap1


NB: The initial mass of the UO2/C discs was 5.9 g

 

 

       The final mass of the UCx discs was 4.614 g

Entry  Friday, January 19, 2018, 12:32, Marla Cervantes, UO2/C, 40282-2 , TARGET BOAT, In progress, Carbonizing UO2/C discs for 1stepUCx in graphite sample container_#6 

 Friday, January 19, 2018, 12:29

Circles from cast 1 were used, the same as the last round of 1stepUCx [see elog i.d. 164]

A 14mm punch was used to punch out circles from the cast.

35 circles were packed into a graphite sample container.

35 x UO2/C circles = 5.69 g

Graphite container = 6.84 g

Graphite container is placed inside a target boat.

Boat previously coated with TaC and sintered.

Ta-target boat is wrapped with 3-layers of heat shield and installed in Evap1.

Chamber currently pumping down.


 

    Reply  Monday, January 22, 2018, 15:51, Marla Cervantes, UO2/C, 40282-2 , TARGET BOAT, Problems, Carbonizing UO2/C discs for 1stepUCx in graphite sample container_#6 

Marla Cervantes wrote:

 Friday, January 19, 2018, 12:29

Circles from cast 1 were used, the same as the last round of 1stepUCx [see elog i.d. 164]

A 14mm punch was used to punch out circles from the cast.

35 circles were packed into a graphite sample container.

35 x UO2/C circles = 5.69 g

Graphite container = 6.84 g

Graphite container is placed inside a target boat.

Boat previously coated with TaC and sintered.

Ta-target boat is wrapped with 3-layers of heat shield and installed in Evap1.

Chamber currently pumping down.


 

 Monday, January 22, 2018, 15:48

A power outage on Sunday tripped off EVAP1.

    Reply  Monday, January 22, 2018, 16:20, Marla Cervantes, UO2/C, 40282-2 , TARGET BOAT, Problems resolved, Carbonizing UO2/C discs for 1stepUCx in graphite sample container_#6 180122-1e-1.jpg

Marla Cervantes wrote:

Marla Cervantes wrote:

 Friday, January 19, 2018, 12:29

Circles from cast 1 were used, the same as the last round of 1stepUCx [see elog i.d. 164]

A 14mm punch was used to punch out circles from the cast.

35 circles were packed into a graphite sample container.

35 x UO2/C circles = 5.69 g

Graphite container = 6.84 g

Graphite container is placed inside a target boat.

Boat previously coated with TaC and sintered.

Ta-target boat is wrapped with 3-layers of heat shield and installed in Evap1.

Chamber currently pumping down.


 

 Monday, January 22, 2018, 9:00

A power outage on Sunday tripped off EVAP1.

 Monday, January 22, 2018, 10:00

Chamber pumping down.

Water flow turned on.


Monday, January 22, 2018, 13:30

IGP1 = 8e-6 Torr

Tapped up entire process manually to 520A in 45 min

TGHT = 520 A, 6.08 V 

Vacuum coming down indicating carbonization process complete

Will remain at max setpoint overnight.


 

    Reply  Tuesday, January 23, 2018, 12:49, Marla Cervantes, UO2/C, 40282-2 , TARGET BOAT, Done, Carbonizing UO2/C discs for 1stepUCx in graphite sample container_#6 Carbonization-Batch6-220118.docx

Marla Cervantes wrote:

Marla Cervantes wrote:

Marla Cervantes wrote:

 Friday, January 19, 2018, 12:29

Circles from cast 1 were used, the same as the last round of 1stepUCx [see elog i.d. 164]

A 14mm punch was used to punch out circles from the cast.

35 circles were packed into a graphite sample container.

35 x UO2/C circles = 5.69 g

Graphite container = 6.84 g

Graphite container is placed inside a target boat.

Boat previously coated with TaC and sintered.

Ta-target boat is wrapped with 3-layers of heat shield and installed in Evap1.

Chamber currently pumping down.


 

 Monday, January 22, 2018, 9:00

A power outage on Sunday tripped off EVAP1.

 Monday, January 22, 2018, 10:00

Chamber pumping down.

Water flow turned on.


Monday, January 22, 2018, 13:30

IGP1 = 8e-6 Torr

Tapped up entire process manually to 520A in 45 min

TGHT = 520 A, 6.08 V 

Vacuum coming down indicating carbonization process complete

Will remain at max setpoint overnight.


 

 Tuesday, January 23, 2018, 9:30

Initiating auto-cool at 2 A/min


 Tuesday, January 23, 2018, 16:00

 EVAP1 was not vented, Ar tank has low level, Ar tank will be replaced.


Wednesday, January 24, 2018, 11:37

 EVAP1 was vented very carefully using the Ar remaining in the Ar tank.

Ar tank remaining gas: ~8 psi.


Wednesday, January 24, 2018, 15:42 

UCx was transferred to glove box.

Final mass 4.501 g

Entry  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 

 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.


 

    Reply  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 

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.


 

 Monday, January 29, 2018, 11:06

A power outage around 10 am tripped off EVAP1.

    Reply  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 

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.


 

 Monday, January 29, 2018, 11:06

A power outage around 10 am tripped off EVAP1.

 Monday, January 29, 2018, 14:22

Water flow turned on.

Chamber set to pumping down. 


 

    Reply  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 Carbonization-Batch7-300118.docx

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.


 

 Monday, January 29, 2018, 11:06

A power outage around 10 am tripped off EVAP1.

 Monday, January 29, 2018, 14:22

Water flow turned on.

Chamber set to pumping down. 


 

 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.

 

Entry  Thursday, February 01, 2018, 13:15, Marla Cervantes, UO2/C, 40282-1, TARGET BOAT, Done, Carbonizing UO2/C discs for 1stepUCx in graphite sample container _#8 Carbonization-Batch8-020218.docx

 Thursday, February 01, 2018, 12:59

35 circles of 14 mm diameter were packed into a graphite sample container.

28 discs corresponded to cats#1 and 7 discs to cast#2

35 x UO2/C circles = 3.42 g

Graphite container = 6.96 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.


 Friday, February 02, 2018, 13:18

Initial IGP1 = 4.82x10e-7 Torr

Tapped up entire process manually to 520A in 30 min

TGHT = 520 A, 5.63 V

Vacuum coming down nicely indicating carbonization process complete 

Will remain at max setpoint for 4 hrs to ensure full carbonization before cooling down.


 Friday, February 02, 2018, 16:57

Initiating auto-cool at 2.0 A/min 


Monday, February 05, 2018, 17:23 

Vented with Argon and removed form evaporator 1

Entry  Monday, February 05, 2018, 17:26, Marla Cervantes, UO2/C, 40282-1, TARGET BOAT, Done, Carbonizing UO2/C discs for 1stepUCx in graphite sample container _#9 Carbonization-Batch9-060218.docx

Monday, February 05, 2018, 17:24

35 circles from cast#2 of 14 mm diameter were packed into a graphite sample container.

35 x UO2/C circles = 4.59 g

Graphite container = 5.3 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.


 Tuesday, February 06, 2018, 10:59

Initial IGP1 = 4.79e-7 Torr

Tapped up entire process manually to 520A in 30 min

TGHT = 520 A, 5.32 V

Vacuum coming down indicating carbonization process complete.  

Will remain at max setpoint for 4 hrs to ensure full carbonization before cooling down.


 Tuesday, February 06, 2018, 14:44

Initiating auto-cool at 2.0 A/min 


 Thursday, February 08, 2018, 10:43

Vented with Ar and removed from EVAP1


 

ELOG V2.9.2-2455