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Entry  Wednesday, March 09, 2022, 06:27, Darwin Ortiz Rosales, TaC, 42464-2, HP-FEBIAD, Done, TaC coating/sintering 

 Wednesday, March 09, 2022, 06:25

Ta HP-FEBIAD was coated with TaC and wrapped with Ta heat-shields (3 layers)

Desired temperature = 1800 C , TBHT will be set fixed at 230A (max).

Evap 2 will be pumped down over previous night

Good vacuum = 3.00 e-4 Torr

Bad vacuum = 5.00 e-2 Torr

IGP1= 1.2 e-06 Torr

Start autoramp @1A/min to 60 A


Wednesday, March 09, 2022, 09:29

 TGHT= 60 A 0.67 V

TBHT = 60A 0.59V

IGP1= 1.77e-6 Torr

autoramp @ 2A/min to 120 A and monitor (both TGHT and TBHT)


Wednesday, March 09, 2022, 10:19

IGP1 was increasing to fast.  Manually lowered current to 105A on both TGHT and TBHT.

Will allow pressure to stabilize

Plant group requested maintenance work for EF12/13

Therefore, keeping system as is until further instructions from plant group.


Thursday, March 10, 2022, 15:18

Will resume ramp up to 120 A for both TGHT and TBHT @ 1A/min

 IGP1= 6.4 e-07 Torr

 


Thursday, March 10, 2022, 15:30

Increase ramp rate to 2A/min 


Thursday, March 10, 2022, 17:41

@ 245 A TGHT and 230A TBHT ramp back down to 100 A for both as OMEGA not displaying Temperature.  Will need to go in tomorrow to fix OMEGA 


Friday, March 11, 2022, 14:25

Ramping at 2A/min to 230A for both TGHT and TBHT


Friday, March 11, 2022, 15:17

IGP1= 1.23e-6 Torr

Continue Ramping TGHT @ 3A/min to 400 A keep TBHT at 230A


Friday, March 11, 2022, 22:22

@ TGHT 725 A 1800 C was reached on OMEGA

Kept there since 7:20 pm.  Start rampdown at 11:20 pm.

 


Friday, March 11, 2022, 23:19  

 IGP1= 6.9e-6 Torr

OMEGA= 1805C

TGHT= 725 A, 10.9V

TBHT= 232A, 3.1V

Start rampdown at -2A/min on TGHT and -1A/min for TBHT

 

Entry  Wednesday, March 23, 2022, 10:52, Darwin Ortiz Rosales, TaC, 44692-9, HP-FEBIAD, Done, TaC coating  image_2022-03-24_201954.png

Wednesday, March 23, 2022, 10:49

Ta HP-FEBIAD was coated with TaC and wrapped with Ta heat-shields (3.5 layers) (two pieces around the fins only and 3 layers around the whole )

Desired temperature = 1800 C , TBHT will be set fixed at 230A (max).  TGHT expected to reach desired Temperature @~700A

Evap 2 was pumped down over previous night

Good vacuum = 3.00 e-4 Torr

Bad vacuum = 5.00 e-2 Torr

IGP1= 1.2 e-06 Torr

Start autoramp @0.5 A/min to 60 A


 Wednesday, March 23, 2022, 11:37

Increase autoramp to 1A/min to 60A for both TGHT and TBHT


Wednesday, March 23, 2022, 12:24

Pressure increasing at 60A so will leave at this current until pressure drops


Wednesday, March 23, 2022, 13:32

IGP1 = 2.9e-06 Torr

Will autoramp at 0.5A/min to 90A both TGHT and TBHT


Thursday, March 24, 2022, 16:35

1800C reached at 724A TGHT .  TBHT @ 230A.  Will keep at this temperature for 4 hours. 


Thursday, March 24, 2022, 20:20

 IGP1 = 6.9 e-06 Torr

OMEGA= 1828 C

TGHT = 724 A, 11.6 V

TBHT = 232.8 A, 3.1 V

Will start ramp-down at 2035 @ -2A/min TGHT and -1A/min TBHT

 

Entry  Wednesday, May 18, 2022, 09:59, Darwin Ortiz Rosales, SiC, 44692-9, HP-FEBIAD, Done, T-220516 Sintering SiC 

 Wednesday, May 18, 2022, 09:46

Total number of foils: 415 ( including 10 analysis discs on the right side of the container)

Total weight = 1580 g (includes heatshields and T bar)

Total length packed 17 cm (including 10 analysis discs that will be removed)

container has 3 Ta heat shields.

No endcaps inserted to facilitate out-gassing

Ta coated spring at  front (right) side

Initially to ramp TGHT and TBHT to 30A at 3 A/min

then continue to and slow down ramp when pressure begins to increase

max approx 700A on TGHT and 230A on TBHT (Omega slope set = 0.990)

Then temperature = 1800C

TBHT will be set fixed at 230 A (max).  TBHT heated manually and automatically to max.

Good vac at 3.00 e -4 Torr

Bad vac at 5.00 e-2 Torr

 IGP1= 7.1 e-07 Torr at start of initial ramp.  Note, first real operation with new noisy Turbo Pump.


Wednesday, May 18, 2022, 10:18

Pressure increase observed starting around 60A.  Ramped to 70 A and will leave until pressure stabilizes

After about 30 minutes pressure dropped so ramped up to 90 A @1A/min on both TGHT and TBHT


Wednesday, May 18, 2022, 11:37

pressure spike around 90A.  will leave until pressure stabilizes 


Wednesday, May 18, 2022, 12:54  

start autoramp to 100A at 1A/min.  IGP1= 1.4e-4 Torr


Wednesday, May 18, 2022, 13:15

autoramp to 150A @1A/min 


Wednesday, May 18, 2022, 13:41

 At 110A another spike in pressure.  System waiting for good vacuum


Wednesday, May 18, 2022, 15:24

ramped to 150A on both TGHT and TBHT.  Ramping to 200 A at @A/min for both TGHT and TBHT

currently IGP1=  2.0e-4 Torr


Wednesday, May 18, 2022, 15:33  

Pressure still trending down; therefore will start ramp at 4A/min to 400 amp on TGHT and 230A to TBHT


Wednesday, May 18, 2022, 16:22 

Increasing ramp to 4A/min on TGHT


Wednesday, May 18, 2022, 17:26 

switched to 6A/min in 1A/10s increments on TGHT


Wednesday, May 18, 2022, 17:43 

Set final current to 730 A as per regression attached.

 

 

 

 

 

 

 


Wednesday, May 18, 2022, 17:54

Final current on TGHT = 740A, 11.9 V

OMEGA = 1775 C

TBHT = 230A, 

Will leave for 4 hours

 


Wednesday, May 18, 2022, 19:56

Temperature dropped so increased current to 755A for the remaining of the time.


Friday, May 20, 2022, 08:58

Final notes:  The difference between initial and final mass was 6 g as expected.  Slight coating on window of evaporator may explain apparent temperature drop.  Next time will keep current at projected setting.  The material looks good with slight overheating on the outer discs of left side.

 

 

Entry  Tuesday, June 07, 2022, 07:31, Darwin Ortiz Rosales, SiC, 42464-2, HP-FEBIAD, Done, T-220524 Sintering SiC 

Tuesday, June 07, 2022, 07:19

Total number of foils: 403 ( including 5 analysis discs on the right side of the container)

Total weight = 1535.3 g (includes heatshields, spring and T bar)

Total length packed 16.4 cm (excluding 5 analysis discs that will be removed)

container has 3 Ta heat shields.

No endcaps inserted to facilitate out-gassing

Ta coated spring at  front (right) side

Initially to ramp TGHT and TBHT to 50A at 3 A/min

then continue to 80A and slow down ramp when pressure begins to increase

max approx 700A on TGHT and 230A on TBHT (Omega slope set = 0.990)

Then temperature = 1800C

TBHT will be set fixed at 230 A (max).  TBHT heated manually and automatically to max.

Good vac at 3.00 e -4 Torr

Bad vac at 5.00 e-2 Torr

 IGP1= 7.6 e-07 Torr at start of initial ramp.


 Tuesday, June 07, 2022, 11:14

Ramping to 150A on TGHT and TBHT at 1A/min


Ramped TGHT and TBHT to 230A at 2A/min

Tuesday, June 07, 2022, 13:12

Ramping TGHT to 600A at 4A/min

TBHT at 230A, 3.0V


Tuesday, June 07, 2022, 16:41

TGHT= 740 A, 12.1V

TBHT= 232A, 3.0 V

OMEGA reading 1616C but questionable.  Will leave for 4 hours at 740A top TGHT.


Wednesday, June 08, 2022, 22:15

Early Wednesday morning the left TGHT bolt was found damaged.  The target leg was coated with bolt material rendering the Target inoperable.   

The Heatshield assembly was swapped and surfaces cleaned.  A "dummy" FEBIAD was installed to test if the system can withstand high current. 

The system was pumped down and ramped to 740A on TGHT at 4A/min.  It was then left at that current for 4 to 5 hours.

Currently starting rampdown at -2A/min to 0A. 

Photos of the incident attached in *eLog 580*.  IGP1= 5.7e-06 Torr

TGHT= 742A, 11.4V

Entry  Thursday, June 09, 2022, 09:09, Darwin Ortiz Rosales, Ta, , HP-FEBIAD, Done, Troubleshooting MicrosoftTeams-image_(3).pngMicrosoftTeams-image_(4).pngMicrosoftTeams-image_(5).png

Thursday, June 09, 2022, 09:07

Yesterday, Wednesday June 08, 2022 @ ~3.00 pm a "dummy" target container was installed in EVAP 2 after the heatshield assembly had been swapped.

The purpose is to test correct functioning of the system.  Melting and evaporation on one of the bolts of the previous target container (eLog578) prompted the change in heatshield assembly and current testing.

TGHT was ramped up to 740A @ 4A/min, left to run at the final current for ~4.5 hours and then ramped down @-2A/min to 0A.

Will dismount dummy container this morning.

IGP1=2.5e-07 Torr


Thursday, June 09, 2022, 11:16

The target appears in good shape.  No abnormal behaviour. 

Picture attached are of the previous failed target eLog 578

 

Entry  Tuesday, June 14, 2022, 09:04, Darwin Ortiz Rosales, Ta, 37978-1, HP-FEBIAD, Done, TaC coating sintering 

Tuesday, June 14, 2022, 08:47

Ta HP-FEBIAD was coated with TaC and wrapped with Ta heat-shields (3 layers)

Desired temperature = 1800 C , TBHT will be set fixed at 230A (max).

Evap 2 will be pumped down over previous night

OMEGA slope= 0.990

Good vacuum = 3.00 e-4 Torr

Bad vacuum = 5.00 e-2 Torr

IGP1= 1.2 e-06 Torr

Start autoramp @2A/min to 80 A then autoramp heat @1A/min to 150 A.  Then autoramp TGHT to 675A and TBHT to 230A.


Tuesday, June 14, 2022, 08:49

IGP1= 0.13 Torr

*had timed out and it was off.  I RST and turned back on.*

Will wait for the pressure to drop to start heating


 Tuesday, June 14, 2022, 09:36

IGP1= 9.4e-06 Torr

Start autoramp @2A/min to 80A


Tuesday, June 14, 2022, 11:27

IGP1= 8.7 e-06 Torr Trending down. 

TGHT= 146A, 1.6V

TBHT= 146A, 1.7V

Has been ramping at 1A/min

Change ramp rate to 2A/min to 700A on TGHT and 230A on TBHT


Tuesday, June 14, 2022, 14:48

Change final current on TGHT to 675A, according to plot.  May change again. 

Currently TGHT=  537A, 7.7V 

IGP1= 4.4e-06 Torr


Tuesday, June 14, 2022, 18:46

Top temperature was 1825 Celsius at TGHT = 675A

Will start rampdown at 8:00 pm

 


 Tuesday, June 14, 2022, 20:01

TGHT= 675A, 10.3 V

TBHT= 230A, 3V

OMEGA= 1815C

IGP1= 3.9e-06 Torr

ramping down @-2A/min TGHT and -1A/min TBHT

Entry  Tuesday, June 21, 2022, 09:48, Darwin Ortiz Rosales, SiC, 37978-1, HP-FEBIAD, Done, T-220617 sintering 

Tuesday, June 21, 2022, 09:43

Total number of foils: 377 ( including 6 analysis discs on the right side of the container)

Total weight = 1454 g (includes heatshields, spring and T bar)

Total length packed 15.5 cm (excluding 6 analysis discs that will be removed)

container has 3 Ta heat shields and is coated

No endcaps inserted to facilitate out-gassing

Ta coated spring at  front (right) side

Initially to ramp TGHT and TBHT to 80A at 2 A/min

then to 120A and slow down ramp when pressure begins to increase

max approx 675A on TGHT and 230A on TBHT (Omega slope set = 0.990)

Then temperature = 1800C

TBHT will be set fixed at 230 A (max).  TBHT heated manually and automatically to max.

Good vac at 3.00 e -4 Torr

Bad vac at 5.00 e-2 Torr

 IGP1=3.6 e-07 Torr at start of initial ramp.

 


Tuesday, June 21, 2022, 13:54

IGP1= 7.1 e-05 and dropping.  Start ramp to 150A for both TGHT and TBHT @1A/min


Tuesday, June 21, 2022, 21:27

Increased ramp rate to 3A/min for TGHT to 675A


Tuesday, June 21, 2022, 22:38

Ramp up to 685 A on TGHT and leave for 4 hours. 

OMEGA = 1645 C but suspect reading not on Ta surface.


Wednesday, June 22, 2022, 02:28

IGP1=7.7e-6 Torr

OMEGA =1610C

TGHT = 685A, 10.5V

TBHT = 230A, 3V

initiate rampdown at -2A/min and -1Amin TGHT and TBHT

Entry  Wednesday, June 29, 2022, 10:12, Darwin Ortiz Rosales, TaC, 44692-10, HP-FEBIAD, Done, TaC coating sintering 

Wednesday, June 29, 2022, 10:07

Ta HP-FEBIAD was coated with TaC and wrapped with Ta heat-shields (3 layers)

Desired temperature = 1800 C , TBHT will be set fixed at 230A (max).

Evap 2 will be pumped down over previous night

OMEGA slope= 0.990

Good vacuum = 3.00 e-4 Torr

Bad vacuum = 5.00 e-2 Torr

IGP1= 1.2 e-06 Torr

Start autoramp @2A/min to 80 A then autoramp heat @1A/min to 150 A.  Then autoramp TGHT to 675A and TBHT to 230A.1


Wednesday, June 29, 2022, 10:13

Chamber isolation performed and no change of pressure observed.

Water leak test performed and no pressure change detected.

Starting ramp up


Wednesday, June 29, 2022, 13:23

Ramping to 675A on TGHT and 230A on TBHT @ 2A/min

Ramped TGHT to 680A, 10.6V  and held for 4 hours


Wednesday, June 29, 2022, 21:52

Started rampdown @-2A/min TGHT and -1A/min TBHT

Entry  Thursday, August 25, 2022, 10:16, Darwin Ortiz Rosales, TiC, 44692-10, HP-FEBIAD, Done, TiC 220818 Sintering (TiC #6) 

Thursday, August 25, 2022, 10:06

 

Target container is loaded with 379 Discs of TiC for Target and 5 extra discs for analysis on left end

Target length = 12.5

3 Ta foil heatshields and on TaC coated Ta spring on right side

Total weight including heatshields and spring = 1551.4 g   Final total weight = 1545.5 g

Final power should be ~10988 Watt

TGHT ramp up to 820A, and TGHT to 300A at 0.1A/min.

IGP1= 7.7e-7 Torr

Good vacuum =3.0e-05 Torr

Bad vacuum = 5e-04 Torr

Initial TGHT and TBHT autoramped @1A/min to 50A

TBHT mas 230A

TGHT max depends on final power

 


Thursday, August 25, 2022, 11:17 

Start autoramp at 1A/min to 80A on both TGHT and TBHT


Thursday, August 25, 2022, 11:54 

leaving at 80A until pressure stops rising

 


Thursday, August 25, 2022, 22:29

left to autoramp to 230A TBHT and 750 A TGHT since approximately 2:00 pm

Will leave ramping @1A/min to 750 A on TGHT

TBHT currently at 230A


 Friday, August 26, 2022, 07:27

TGHT = 850A, 9.3V

Started autoramp to 850A at 1A/min for TGHT

TBHT held at 230A

OMEGA = 1584C

 


Friday, August 26, 2022, 09:34

Target running at ~820A, 13.1 V since 9

Cooling to start between 1:15 to 1:30 pm

OMEGA reads 1668 C at top current

current reading oscillates between 812A and 828A and 13.1V  to 13.2V.

 


Monday, August 29, 2022, 12:21

Cooling at -2A/min for TGHT and -1A/min TBHT started on time on Friday August 26th.

Target remained under vacuum after cooling, over the weekend.

Target removed this morning and looks good. 5 discs removed for analysis

 

Entry  Thursday, February 23, 2023, 18:24, Darwin Ortiz Rosales, TaC, 45441-2, HP-FEBIAD, Done, TaC coating sintering WO_45441-2.png

Thursday, February 23, 2023, 18:20

Ta HP-FEBIAD was coated with TaC and wrapped with Ta heat-shields (3 layers) and 1 under layer that doesn't cover the middle section.

Desired temperature = 1800 C , TBHT will be set fixed at 230A (max).

Evap 2 will be pumped down to 5e-06 Torr range

OMEGA slope= 0.990

Good vacuum = 5.00 e-4 Torr

Bad vacuum = 5.00 e-2 Torr

IGP1=2.5 e-06 Torr

Start autoramp @1A/min to 80 A then autoramp heat @1A/min to 150 A.  Then autoramp TGHT to approx 675A and TBHT to 230A.1

 


Friday, February 24, 2023, 09:10

heated overnight @0.5 A/min to 400 A.  Then started heating at 1A/min to 600 A while taking readings for current/Temp regression.

regression so far points to 682A to get to 1800C.  Will continue taking readings and possible heat to 1850 C. 


Friday, February 24, 2023, 09:43

autoramping to 690A at 1A/min


Friday, February 24, 2023, 11:24

ramping manually to 690A from 650A


Friday, February 24, 2023, 11:32

4 hours at 330pm

TGHT 492A, 10.6V

TBHT = 230A, 3.2V

IGP1=5.11e-06 Torr

OMEGA =1840 C


Friday, February 24, 2023, 15:36

TGHT = 692A, 10.6V

TBHT = 230 A, 3.2V

OMEGA = 1835 C

IGP1= 2.4e-06 Torr

Starting rampdown at -2A/min TGHT and -1A/min TBHT

Entry  Tuesday, April 04, 2023, 12:50, Darwin Ortiz Rosales, TaC, 45447-1, HP-FEBIAD, Done, TaC coating sintering 

Tuesday, April 04, 2023, 12:48

Ta HP-FEBIAD was coated with TaC and wrapped with Ta heat-shields (3 layers + 1 inner layer around fins including center fins)

Desired temperature = 1850 C , TBHT will be set fixed at 230A (max).

Evap 2 will be pumped down over previous night

OMEGA slope= 0.990

Good vacuum = 5.00 e-4 Torr

Bad vacuum = 5.00 e-2 Torr

OMEGA target temp = 1850 C


Wednesday, April 05, 2023, 07:37

IGP1= 4.3e-07 Torr

starting autoramp @ 1A/min to 230A on both TGHT and TBHT


Wednesday, April 05, 2023, 10:56

Starting Autoramp at 4A/min to 400 A on TGHT


Wednesday, April 05, 2023, 14:14

OMEGA Reached 1877C  @ 743A, 11.3V TGHT

rampdown  @ 6:00 pm


Wednesday, April 05, 2023, 14:38

Decreased TGHT current to 736A because temperature was creeping up

rampdown was started at 6:05 pm

Final pressure at 0 V - 1.7e-07 Torr


Entry  Thursday, August 31, 2023, 07:09, Darwin Ortiz Rosales, TaC, 45447-4, HP-FEBIAD, Done, TaC coating sintering 

Thursday, August 31, 2023, 07:07

The coated container was wrapped in 3 Ta foil heatshields.

Target temperature on OMEGA= 1850-1900 C

OMEGA slope:= 0.990

Target time at max temperature = 4 hours

Final Current TBHT= 230 A

Final TGHT current= ~500A (adjustable)

Heating autoramp starged at 1A/min on  TGHT  and TBHT to 120A

Then at 2 A/min  to =400 A TGHT and 230A TBHT

Good vacuum = 5.0 e-04 Torr

Bad vacuum = 5.0E-02 Torr

Initial IGP1= 7.7e-07 Torr


Thursday, August 31, 2023, 12:29

OMEGA=1238 C

IGP1=1.4e-06 Torr

Continue ramp

 ramp @ 4A/min (2A/30s)


Thursday, August 31, 2023, 12:50

IGP1= 2.23e-06 Torr

OMEGA=1392 C


Thursday, August 31, 2023, 13:04

IGP1=2.7e-06 Torr

OMEGA=1443 C


Thursday, August 31, 2023, 13:18

IGP1= 3.8e-06 Torr

OMEGA=1537 C


Thursday, August 31, 2023, 14:38

OMEGA=1852C

Entry  Wednesday, December 06, 2023, 09:57, Darwin Ortiz Rosales, SiC, 45447-4, HP-FEBIAD, Done, 231204SiC conditioning 

Wednesday, December 06, 2023, 09:47

Target number of foils:370

Analysis discs 16 A and 16B interspersed on the end further from the laser

A are discs produced using new method and B are discs produced using milling.

Total length packed 16 cm (excluding the analysis discs)

container has 3 Ta heat shields (one inner around fins and center block, new type of 1st shield made up of three pieces)

No endcaps inserted to facilitate out-gassing

Ta coated spring at  front end

ramp to 120A @ 1A/min TGHT and to 120A on TBHT hold there until pressure drop, then ramp to 500A on TGHT and 230A TBHT.

max approx 700A on TGHT and 230A on TBHT (Omega slope set = 0.990)

Then temperature = 1800C

TBHT will be set fixed at 230 A (max).  TBHT heated manually and automatically to max.

Good vac at 5.00 e -4 Torr

Bad vac at 5.00 e-2 Torr

 IGP1= 1e-06 Torr at start of initial ramp.


Wednesday, December 06, 2023, 09:56

System left to drop pressure over previous night and now at 120A.  waiting for pressure drop.

 

 


Wednesday, December 06, 2023, 11:18

increased ramp rate to 2A/min


Wednesday, December 06, 2023, 14:41

increased ramp to 3A/min on TGHT and stopping to allow pressure to stabilize before taking temperature readings

Top temperature 1800C at 710 A but started dropping.  Increased current to 750A and left there for 4 hours.

Cool down at -2A/min TGHT and -1A/min TBHT


 

 

Entry  Friday, January 26, 2024, 07:06, Darwin Ortiz Rosales, TaC, 45447-1, HP-FEBIAD, Done, TaC coating sintering 

Friday, January 26, 2024, 07:05

The coated container was wrapped in 4 Ta foil heatshield and left in evap2 over night to attain vacuum.

Target temperature on OMEGA= 1850-1900 C

OMEGA slope:= 0.990

Target time at max temperature = 4 hours

Final Current TBHT= 230 A

Final TGHT current= ~700A (adjustable)

Heating autoramp starged at 1A/min on  TGHT  and TBHT to 120A

Then at 2 A/min  to =400 A TGHT and 230A TBHT

Good vacuum = 5.0 e-04 Torr

Bad vacuum = 5.0E-02 Torr

Initial IGP1= 5.7e-05 Torr


Friday, January 26, 2024, 09:20

Pressure starts increasing at 125 A on TGHT and TBHT.  Leaving it to equilibrate then will start ramping at 3A/min (1.5A/30s) to 700A on TGHT and 230A on TBHT

 


Friday, January 26, 2024, 13:18

leave sintering at 1838C .  Will start rampdown at 5 pm.

IGP1= 6.10e-06 Torr

TGHT=680A, 10.14V

TBHT = 230A, 3.13V


Friday, January 26, 2024, 16:52

IGP1 = 3.0e10-6 Torr

OMEGA=1821 C

start rampdown @-2A/min TGHT and -1A/min TBHT

Entry  Monday, March 10, 2025, 09:56, Darwin Ortiz Rosales, Empty, 45447-3, HP-FEBIAD, Done, TaC coating sintering 

Monday, March 10, 2025, 09:50

The coated container was wrapped in 4 Ta foil heatshield and left in evap2  over weekend to decrease pressure.

Target temperature on OMEGA= 1850-1900 C

OMEGA slope:= 0.990

Target time at max temperature = 4 hours

Final Current TBHT= 230 A

Final TGHT current= ~650A (adjustable)

Heating autoramp starged at 2A/min on  TGHT  and TBHT to 120A

Then at 2 A/min  to =400 A TGHT and 230A TBHT

Good vacuum = 5.0 e-04 Torr

Bad vacuum = 5.0E-02 Torr

Initial IGP1=


 Monday, March 10, 2025, 10:36

Initial IGP1= 8.5 e-06 torr

Starting ramp to 120A for both TGHT and TBHT


Monday, March 10, 2025, 16:57

RD TGHT =686A set to 700A, 10.8V

TBHT = 230A, 3.1V

OMEGA= 1710

Will leave for 4 hours


 Monday, March 10, 2025, 20:42

IGP1=7.9e-06 Torr

OMEGA= 1750 C

TGHT = 686 A, 10.8V

TBHT= 230A, 3.1 V

starting rampdown at -2A/min TGHT and -1A/min TBHT

 

Entry  Friday, April 04, 2025, 06:55, Darwin Ortiz Rosales, SiC, 45447-1, HP-FEBIAD, Done, SiC-250402 conditioning 

Friday, April 04, 2025, 06:41

Total number of foils:328

Total length packed 15.2 cm

container has 4 Ta heat shields (one inner only around fins)

No endcaps inserted to facilitate out-gassing

Ta coated spring at back, coated cap at front with perforations

ramp to 500A @ 1A/min TGHT and to 230A on TBHT

max approx 700A on TGHT and 230A on TBHT (Omega slope set = 0.990)

Then temperature = 1800C

TBHT will be set fixed at 230 A (max).  TBHT heated manually and automatically to max.

Good vac at 5.00 e -4 Torr

Bad vac at 5.00 e-2 Torr

 IGP1= 1e-06 Torr at start of initial ramp.

initiating ramp up


 Friday, April 04, 2025, 10:54

Paused ramp at 128.5A TGHT and 130.2 A TBHT.  Will hold and let pressure drop.

IGP1 = 5.43e-04 Torr currently


Friday, April 04, 2025, 14:04

restarting ramp

IGP1=2.6e-05 Torr


Friday, April 04, 2025, 16:35

increasing ramp to 3A/min

@18:15 ramp was slowed down to 2A/min and left to reach 730~A


Friday, April 04, 2025, 22:54

Current was stopped at 733A on readback and left for 3.5 hours, then manually ramped to 738A for 0.5 hours. 

This is in accordance with the initial oven (Elog 619)


Friday, April 04, 2025, 23:45

starting ramp down at -1A/min TBHT and -2A/min TGHT

Entry  Monday, March 28, 2011, 12:40, John Wong, , , , , Under Construction 

Evaporator #2 is still under construction.  For further information please contact Jens Lassen.

Entry  Thursday, July 21, 2011, 17:33, Pierre Bricault, , , , Maintenance,  
Rick mentioned to me that the evaporator is ready for the next steps of the commissioning process.
In the chamber only the target leg heaters have current by-pass clamps on them. 
The ionizer tube heaters do not have them because these lines do not have the same configuration as the others. The current by-pass clamps will 
not fit these lines.

We may not need this for the commissioning, Rick will design and manufacture something  for this when I get back from holiday.

The water is on in all circuits except for the power supply cooling circuit.

Pierre
Entry  Monday, February 13, 2012, 16:24, John Wong, , , , Done, Evaporator #2 Commissioned  Evap2_Commissioning_Report.PDF

 Monday, February 13, 2012, 16:21

The Evaporator 2 is now commissioned.  See attachment#1 for the commissioning report or refer to Document #43321.  

Entry  Thursday, March 01, 2012, 14:42, John Wong, , , , , IEVAP2:TGHT/TBHT max current setpoint issue TGHT_TBHT_setpoints.JPG

Thursday, March 01, 2012, 14:35

Both the IEVAP2:TBHT and IEVAP2:TGHT maximum current setpoints on the vacuum page (see page: /edl/ievap2_vacuum1.edl) are wrong. 

For IEVAP2:TGHT, the maximum current setpoint should be 1500A (see page: /edl/ievap2tghtcp.edl), not 1000A. 

For IEVAP2:TBHT, the maximum current setpoint should be 500A (see page: /edl/ievap2tbhtcp.edl), not 300A. 

See attachement#1 for grabscreen. 

Fault: 5853


 

 

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