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.

1. stage - burning off organics complete

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

 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.

 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.

 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

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

 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.

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.

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.

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

 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.

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.

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. 

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

 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 

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