ID |
Date |
Author |
Target Material |
Target Oven W.O# |
Source |
Status |
Subject |
613
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Monday, March 06, 2023, 21:34 |
Darwin Ortiz Rosales | SiC | 44692-3 | HP-SIS | Done | 230306SiC conditioning | Monday, March 06, 2023, 21:29
Total number of foils:382 ( including 5 analysis discs on the right side of the container)
Total length packed 17 cm (excluding 5 analysis discs that will be removed)
container has 4 Ta heat shields (one inner only around fins)
No endcaps inserted to facilitate out-gassing
Ta coated spring at both ends
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= 3e-06 Torr at start of initial ramp.
Tuesday, March 07, 2023, 07:23
IGP1= 1.2e-05 Torr
OMEGA = 1288 C
Tuesday, March 07, 2023, 10:01
Will ramp to 715 A and keep there for 4 hours. OMEGA readings not reliable beyond this point due to coating on EVAP2 window.

Tuesday, March 07, 2023, 11:10
TGHT = 715A, 11.0V
TBHT = 230A, 3.2V
OMEGA = 1750 C (but not reliable)
Maintaining for 4 hours then will ramp down @ -2A/min TGHT and -1A/min TBHT
Wednesday, March 08, 2023, 07:27
Final IGP1= 1.3e-07 Torr (before shutting down pumps) |
615
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Sunday, March 12, 2023, 08:06 |
Darwin Ortiz Rosales | Ta | 44692-2 | HP-SIS | Done | TaC coating sintering | Sunday, March 12, 2023, 08:04
Ta HP-SIS was coated with TaC and wrapped with Ta heat-shields (3 layers + 1 inner layer around 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
IGP1=1.9 e-07 Torr
Start autoramp @2A/min to120 A on TGHT and TBHT.
OMEGA target temp = 1850 C
Sunday, March 12, 2023, 13:08
start autoramp to 500A on TGHT @ 4A/min (2A/30s)
from 320A, 4.5 V on TGHT
IGP1= 6.8e-07 Torr
Sunday, March 12, 2023, 19:09
Starting ramp down @ -2A/min TGHT, and -1A/min TBHT
@687A, 10.7 V TGHT OMEGA = 1850 C
final pressure IGP1= 2.4e-06 Torr
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616
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Monday, March 13, 2023, 22:31 |
Darwin Ortiz Rosales | SiC | 44692-2 | HP-SIS | Done | SiC-230313 | Monday, March 13, 2023, 22:28
Total number of foils:380 ( including 5 analysis discs on the front side of the container)
Total length packed 17 cm (excluding 5 analysis discs that will be removed)
container has 4 Ta heat shields (one inner only around fins)
No endcaps inserted to facilitate out-gassing
Ta coated spring at both ends
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 = 1800 C. Will ramp to 1820 C
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= 2.8e-06 Torr at start of initial ramp.
Tuesday, March 14, 2023, 07:26
Increased autoramp to 2A/min to 700 A on TGHT while keeping TBHT to 230A, 3.3V
Tuesday, March 14, 2023, 09:53
At 743A, 11.8V TGHT
OMEGA = 1780 C. (not entirely reliable, will leave at this current for 4 hours)
Tuesday, March 14, 2023, 14:00
Starting rampdown at -2A/min on TGHT and -1A/min TBHT
Final IGP1= 5.5e-06 Torr
OMEGA= 1750C
TBHT= 230A, 3.3V
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602
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Thursday, November 17, 2022, 08:14 |
Darwin Ortiz Rosales | TaC | 44692-12 | TARGET BOAT | Done | TaC coating sintering | Thursday, November 17, 2022, 08:11
The coated container was wrapped in four Ta foil heatshields.
Target temperature on OMEGA= 1850-1900 C
OMEGA slope:= 0.990
Target time at max temperature = 4 hours
Final Current TBHT= N/A
Final TGHT current= ~400A (adjustable)
Heating autoramp starged at 4A/min on TGHT 40A
Then at 2A/min on both heaters to 120A.
Good vacuum = 5.0 e-02 Torr
Bad vacuum = 5.0E-04 Torr
IGP1 initial = 2.7e-07 Torr
Thursday, November 17, 2022, 10:41
OMEGA=1897C at 358A, 6.0V
Will ramp down at 230 pm
Thursday, November 17, 2022, 14:34
starting rampdown at -2A/min
OMEGA reads 1865C and IGP1=7.6e-07 Torr
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639
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Tuesday, August 15, 2023, 12:03 |
Darwin Ortiz Rosales | TaC | 44692-11 | TARGET BOAT | Done | TaC coating sintering | Tuesday, August 15, 2023, 10:48
The coated container was wrapped in 4 Ta foil heatshields.
Target temperature on OMEGA= 1850-1900 C
OMEGA slope:= 0.990
Target time at max temperature = 4 hours
Final Current TBHT= N/A
Final TGHT current= ~400A (adjustable)
Heating autoramp starged at 2A/min(1A/30s) on TGHT 100A
Then at 4A/min to 100 A.
Good vacuum = 5.0 e-04 Torr
Bad vacuum = 5.0E-02 Torr
IGP1 initial =8.9e-06 Torr
Tuesday, August 15, 2023, 13:00
Tuesday, August 15, 2023, 13:00
Pressure stabilizing @8.8e-06 Torr
starting 2A/30s ramp to 400 A
Tuesday, August 15, 2023, 14:02
TGHT RD CURRENT = 331.4A, 5.8V, SET CURRENT=338 A.
OMEGA = 1855
IGP1= 1.5e-05 Torr
Leave for 4 hours
Tuesday, August 15, 2023, 15:05
Temperature dropped slightly to 1820C so increased current set point to 345A, and RD was at 338A, 5.9V
OMEGA increased to 1842C
Tuesday, August 15, 2023, 17:59
OMEGA = 1823C
TGHT= RD 338A, 5.9V SET= 345A
IGP1= 4.0e-06 Torr
Start rampdown at -2A/min |
640
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Tuesday, August 22, 2023, 09:35 |
Darwin Ortiz Rosales | TaC | 44692-11 | TARGET BOAT | Done | TaC coating sintering (second coating on same tube) | Tuesday, August 22, 2023, 09:29
The coated container was wrapped in 4 Ta foil heatshields.
Target temperature on OMEGA= 1850-1900 C
OMEGA slope:= 0.990
Target time at max temperature = 2 hours
Final Current TBHT= N/A
Final TGHT current= ~400A (adjustable)
Heating autoramp starged at 2A/min(1A/30s) on TGHT 100A
Then at 4A/min to =400 A.
Good vacuum = 5.0 e-04 Torr
Bad vacuum = 5.0E-02 Torr
IGP1 initial =2.2e-06 Torr
Tuesday, August 22, 2023, 10:25
IGP1= 2.31e-06 Torr
TGHT 98.0 A (RD), 1.35 V
Start ramping at 2A/min to 400A
Tuesday, August 22, 2023, 11:54
Reached 1860 @ TGHT = 353A, 6.16V (RD) Will leave for 2 hours
Tuesday, August 22, 2023, 14:07
1853C OMEGA
TGHT = 353 A, 6.2 V (RD)
IGP1= 2.88E-06 Torr
Starting ramp-down at -2A/min
Saturday, August 26, 2023, 09:37
Note: the coating looks really good . The second sintering on the second coating was 2 hours. Will test the coating during graphite material conditioning. |
654
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Wednesday, February 07, 2024, 22:49 |
Darwin Ortiz Rosales | TiC | 44692-11 | LP TUBE | Done | 240206TiC conditioning |
Wednesday, February 07, 2024, 22:36
Ta container tube TaC coated, wrapped in 4 Ta foil heat-shields, and loaded with 320 D shaped discs in a 12mm graphite cartridge with usable 11mm
Endcaps on the graphite cartridge have holes for outgassing
initial heating @ 2A/min to 90 A then 1A/min to 120A TGHT
OMEGA slope = 0.99
Vacuum limits up to 400A: 5.0e-04 Torr -- 1.0e-02 Torr
Thursday, February 08, 2024, 06:18
Starting heat ramp tght
initial pressure = 8.1e-07 Torr IGP1
Thursday, February 08, 2024, 06:54
start of gasoff observed. paused ramp and will continue at 1A/min
Thursday, February 08, 2024, 07:24
lowered TGHT current to 75 A as pressure increasing too rapidly. will leave at this current until pressure drops
Thursday, February 08, 2024, 09:11
continuing ramp to 120A on TGHT
Thursday, February 08, 2024, 09:24
Increasing ramp to 2A/min to 250A on TGHT
Thursday, February 08, 2024, 10:52
Increased ramp to 3A/min to 250A on TGHT
Thursday, February 08, 2024, 11:10
Everything looks good will continue to 300 A at 3A/min TGHT
Thursday, February 08, 2024, 11:33
Pausing heating at 285A, 4.8V TGHT
OMEGA reads 1430C
Will let pressure drop and then proceed ramping slowly @ 0.2A/min
Thursday, February 08, 2024, 13:53
IGP1= 2.4e-06 Torr
OMEGA = 1432 C
ramp at 0.2A/min towards 1550C
Thursday, February 08, 2024, 14:07
pressure very stable. will increase to 0.4 A/min
Thursday, February 08, 2024, 15:24
increasing ramp rate to 1A/min
IGP1 = 2.5e-06 Torr
Thursday, February 08, 2024, 18:05
1900 C on OMEGA
will leave 3-4 hours depending on pressure
Thursday, February 08, 2024, 21:10
No additional pressure peaks observed and pressure on IGP1= 1.9e-06 Torr
TGHT= 460 A, 8.1V
OMEGA= 1860 C
ramp down at -2A/min
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586
|
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 |
589
|
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
|
554
|
Thursday, September 02, 2021, 07:14 |
Darwin Ortiz Rosales | TaC | 44691-7 | LP-SIS | Done | TaC coating/sintering | Thursday, September 02, 2021, 06:36
Ta tube was coated with TaC and wrapped with Ta heat-shields (3 layers)
Desired temperature = 1900 C (expected TGHT ~430 A), TBHT will be set fixed at 230A (max).
Evap 2 was pumped down over previous night
Good vacuum = 3.00 e-5 Torr
Bad vacuum = 5.00 e-4 Torr
IGP1=7.7e-07 Torr
Initiate autoramp to 50 A @ 1A/min
Thursday, September 02, 2021, 06:54
Stopped autoramp after reading email about EF-12 trip and compressed air issue. Reset to 0 A both TGHT and TBHT
Thursday, September 02, 2021, 12:01
Ispite of site compressed air issues, EVAP 2 has not tripped. Will manually increase current to40A for both TGHT and TBHT.
IGP1= 1.06 E-06 Torr.
Friday, September 03, 2021, 08:06
IGP1= 7.2e-07 Torr
TGHT= 43A, 0.5 V
TBHT= 41A, 0.48 V
Start autoramp at 1A/min to 90A on both TGHT and TBHT
Friday, September 03, 2021, 10:22
IGP1= 1.55 e-06 Torr
TGHT = 90.1 A, 1.1 V
TBHT= 90.0 A, 1.2 V
Continue ramp up at 1A/min to 400 A for TGHT and 230A for TBHT
Friday, September 03, 2021, 16:05
430A on TGHT will keep for four hours. OMEGA = 1856 C but according to regression should be 1900. will keep at this temp.
Friday, September 03, 2021, 21:11
OMEGA has been at 1875C for 4 hours. Will start ramp down @ -2A per minute for TGHT and -1A min for TBHT
TGHT = 430 A, 7.3 V (current actually fluctuates between 428 and 433 A since new power supply
TBHT = 233A, 4.0V (set to 230 but displays 233) |
Attachment 1: coating44691-7.PNG
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533
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Tuesday, March 02, 2021, 11:32 |
Darwin Ortiz Rosales | TaC | 44691-5 | LP-SIS | Done | TaC coating/sintering | Tuesday, March 02, 2021, 11:26
Ta tube was coated with TaC and wrapped with Ta heat-shields (3 layers)
Initial weight including heat-shields = 433.8 g
Desired temperature = 1900 C (expected TGHT ~430 A), TBHT will be set fixed at 230A (max).
Evap 2 will be pumped down over night.
Good vacuum = 3.00 e-5 Torr
Bad vacuum = 5.00 e-5 Torr
Wednesday, March 03, 2021, 13:28
IGP1 = 4.0 e-7 Torr
Start ramping @ 1A/min to 20A on both TGHT and TBHT
Wednesday, March 03, 2021, 15:03
Start ramping @1/min to 60A on Both TGHT and TBHT
Wednesday, March 03, 2021, 22:42
TGHT = 60A, TBHT = 60A
IGP1= 4.2 e-7 stable
Start ramping to 400A @ .5A/min for TGHT and @0.5A/min for TBHT to 230A
Thursday, March 04, 2021, 11:56
TGHT = 400 A, TBHT =230A
IGP1= 1.9e-6 Torr
OMEGA = 1695 C
Continue ramp up @0.5A/min to 430A on TGHT
Thursday, March 04, 2021, 14:02
IGP1 = 1.87e-6 Torr
TGHT = 434 A , 7.2 V
OMEGA = 1787 C
Will tap up manually 450A @ on TGHT and leave at that current for ~4 hours
Thursday, March 04, 2021, 19:35
After ~ 5 hours at 1829 C max OMEGA reading
OMEGA = 815 C
Start ramp down at 1A/min on TGHT and 0.8A/min for TBHT
IGP1= 1.2e-6 Torr
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551
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Wednesday, June 23, 2021, 17:48 |
Aaron Schmidt | Ta | 44691-4 | LP-SIS | In progress | Conditioning Ta#62 (Replacement) | Ta#62 LP-SIS target description: (REPLACEMENT FOR 44139-10)
Total Ta foils = 470 [6x20 packs + 350 single discs]
Foil Thickness = 0.025mm
Target density = 14.29 g/cm3
Target length = 3.4 cm
Total Mass = 48.602 g [Incl foils + Ta wire on 6 packs]
Total mass w/ Target oven= 456 g (w/ end caps)
Discs in target are arranged as follows: 1pack / 75 singles / 1pack / 100 singles / 2packs / 100 singles / 1pack / 75 singles / 1pack
End caps installed (Not expanded). No Ta foil heat shield added
Wednesday, June 23, 2021, 17:46: Roughing.
Wednesday, June 23, 2021, 18:03: TP1 on.
Wednesday, June 23, 2021, 18:09: TP1 @ speed. Vacuum @ 1.53e-04T & dropping.
TBHT will be ramped up to 230A
TGHT will be ramped up to 600A +
Final desired temperature = 1900C.
OMEGA slope = 0.98.
Thursday, June 24, 2021, 07:38: PS on.
Thursday, June 24, 2021, 07:45: TGHT / TBHT tapped up to 10 A. Slope @ 0.98
Thursday, June 24, 2021, 07:46: Auto Ramping TGHT / TBHT to 350 / 150 A @ @ A per min.
Thursday, June 24, 2021, 10:47: TGHT / TBHT @ 350 / 150 A. Auto Ramping TGHT / TBHT to 580 / 230 A @ @ A per min. Temp @ 1120 C
Thursday, June 24, 2021, 12:59: TGHT / TBHT @ 580 / 230 A. Vacuum @ 8.24e-06T. Temp @ 1717 C. Auto-ramping TGHT to 600 A @ 2 A per min.
Thursday, June 24, 2021, 13:10: Vacuum @ 8.83e-06T. Temp @ 1758 C. Auto-ramping TGHT to 620 A @ 2 A per min.
Thursday, June 24, 2021, 13:21: Vacuum @ 1.0e-05T. Temp @ 1798 C. Auto-ramping TGHT to 645 A @ 2 A per min.
Thursday, June 24, 2021, 13:37: Vacuum @ 1.15e-05T. Temp @ 1845 C. Tap up TGHT to 650 manually.
Thursday, June 24, 2021, 13:45: Vacuum @ 1.21e-05T. Temp @ 1875 C. Tap up TGHT to 665+ manually.
Thursday, June 24, 2021, 13:47: Vacuum @ 1.34e-05T. Temp @ 1901 C. Tapped up TGHT to 677 manually. Desired temperature reached.
Thursday, June 24, 2021, 13:51: Auto-cooling @ 2A per min
Friday, June 25, 2021, 05:30: TP1 off. BP1 off.
Friday, June 25, 2021, 07:36: Venting. |
Attachment 1: Ta#62_conditioning_-_Evap_2_-_44691-4.docx
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560
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Wednesday, October 27, 2021, 11:09 |
Darwin Ortiz Rosales | Ta | 44691-3 | LP-SIS | Done | TaC coating/sintering | Wednesday, October 27, 2021, 11:07
Monday, October 25, 2021, 11:52
Ta LPSIS tube was coated with TaC and wrapped with Ta heat-shields (3 layers)
Desired temperature = 1900 C (expected TGHT ~430 A), TBHT will be set fixed at 230A (max).
Evap 2 will be pumped down over previous night
Good vacuum = 3.00 e-3 Torr
Bad vacuum = 5.00 e-2 Torr
Initial total weight = 464.8 g
Final weight after sintering =
Thursday, October 28, 2021, 07:46
IGP1= 7.4e-07 Torr
Initiating autoramp to 40 A on both TGHT and TBHT
ramp rate = 1 A/min
Will keep at 40A for approximately 1 hour or until pressure below 1e-05 Torr
Thursday, October 28, 2021, 09:41
IGP1= 1.9e-06 Torr TGHT = 40.3 A, 0.48 V TBHT = 39.0 A, 0.48V
Autoramp @ 1A/min to 100A on both TGHT and TBHT
Thursday, October 28, 2021, 12:57
IGP1= 1.1e-06 Torr
TGHT = 100 A, 1.3 V
TBHT = 100 A, 1.2 V
Start autoramp at 2A/min to 400 for TGHT and 230 for TBHT
The current from the plot (below) required to reach 1900 C seems too high.
Will take to 430 A as previous. The slope was chequed previously. Need to check OMEGA.
Thursday, October 28, 2021, 20:08
IGP1= 3.34 e-06 Torr
TGHT = 430A , 7.2 V
TBHT = 233A, 4.1V
OMEGA = 1628C
Start ramp down at -2A/min for TGHT and -1A/min for TBHT
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44691-3 TaC coating |
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TGHT |
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TBHT |
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Temperature (C) |
Current (A) |
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Temperature ( C ) |
Voltage (V) |
Current (A) |
Voltage (V) |
Current (A) |
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1900 |
512.88 |
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1250 |
3.90 |
255.0 |
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1700 |
434.06 |
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1302 |
4.30 |
279.0 |
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1800 |
473.47 |
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1343 |
4.60 |
294.0 |
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1423 |
5.10 |
325.0 |
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1484 |
5.7 |
348.0 |
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1555 |
6.2 |
377.0 |
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Slope |
2.537 |
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Y intercept |
598.66 |
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R2 |
0.999 |
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553
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Thursday, August 05, 2021, 11:18 |
Darwin Ortiz Rosales | SiC | 44691-2 | LP-SIS | Done | Dr blade and non-Dr blade Material Experiment (sintering) | Thursday, August 05, 2021, 11:10
Total number of foils: 380
Total length packed 13.5 cm
container has 3 Ta heat shields.
No endcaps inserted to facilitate out-gassing
Two Ta discs at either end and three graphite discs as separators
[Left end [ blade--no blade--blade---no blade] Right end ]
Initially to ramp TGHT and TBHT to 50A at0.5 A/min
Then heat manually to OMEGA ~1400 C , ramping TGHT manually and automatically to reach 430A A (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 -5 Torr
Bad vac at 5.00 e-5 Torr
Total weight into Evap2 =503.8 g
Friday, August 06, 2021, 11:33
IGP1= 8.3e-07 Torr
Start heating at 0.5 A/min on both TGHT and TBHT up to 50A
Friday, August 06, 2021, 22:34
IGP1= 7.0e-06 Torr
TGHT= 50.1 A, 0.6 V TBHT = 50.0A, 0.6V
Continue heating at 0.5A/min to 400A on TGHT and 230A on TBHT
Saturday, August 07, 2021, 10:11
Stopped autoramping. Will allow some time at 63 A on both TGHT and TBHT
Saturday, August 07, 2021, 12:19
IGP1= 1.9e-05 Torr
Manually increase TGHT and TBHT to 65 A
Saturday, August 07, 2021, 23:01
IGP1= 5.8e-06 Torr
TGHT= 64.5 A, 08V TBHT=64.6A, 0.8V
Ramp up manually while monitoring pressure
Sunday, August 08, 2021, 08:46
IGP1= 6.0e-06 Torr
TGHT = 69A, 0.85V TBHT = 69A, 0.90V
ramp up manually
Monday, August 09, 2021, 08:54
IGP1= 1.38e-05 Torr
TGHT= 90.0 A, 1.1V, TBHT= 90.0A 1.3V
Start autoramp at 0.5 A/min on both TGHT and TBHT to 400A and 230A respectively.
Changed bad vacuum to 5e-04 Torr
Monday, August 09, 2021, 21:37
IGP1= 6.6e-06 Torr
TGHT= 300.3 A, 5.0 V, TBHT = 233.0 A, 4.1V
Increase ramp rate to 2A/min for TGHT to 400 A,
OMEGA = 1430 C
Monday, August 09, 2021, 22:09
Will autoramp at 2A/min up to 424A as per regression line on attached file
Monday, August 09, 2021, 22:58
Temperature drop on OMEGA. Unexpected. Will lower current on TGHT to 418A and keep there for 4 hours. OMEGA may not be reliable
Tuesday, August 10, 2021, 3:16
IGP1=8.8e-07 Torr
TGHT = 414A, 7.5V TBHT = 233A, 4.1V
ramp down at -2A/min for TGHT and -1A/min for TBHT
Tuesday, August 10, 2021, 10:35
IGP1= 3.6e-07 Torr
Dismount
Some discs, especially end sections were coated with a golden layer. |
Attachment 1: image_2021-08-09_221014.png
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590
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Thursday, September 01, 2022, 12:32 |
Darwin Ortiz Rosales | TaC | 44691-13 | LP-SIS | Done | TaC coating sintering | Thursday, September 01, 2022, 10:34
The coated container was wrapped in three Ta foil heatshields.
Target temperature on OMEGA= 1850-1900 C
OMEGA slope:= 0.990
Target time at max temperature = 4 hours
Final Current TBHT= 230A
Final TGHT current= ~420A (adjustable)
Heating autoramp starged at 2A/min on both TGHT and TBHT to 40A
Then at 1A/min on both heaters to 120A.
Good vacuum = 5.0 e-05 Torr
Bad vacuum = 5.0E-04 Torr
Thursday, September 01, 2022, 12:39
Has been stabilizing at 40A on both heaters.
Starting 1A/min autoramp to 80A
A discrepancy between setpoint and readback currents was observed for both TGHT and TBHT. The difference is substancial and warrants investigation. This process will be paused until further notice
Tuesday, September 06, 2022, 14:45
Controls has been troubleshooting EVAP2. In the process TBHT has been damaged. Arthur will take a look at it ASAP and his group will try and fix it tomorrow.
Regarding our initial problem, it appears that when an electrical safety box was installed, the copper water lines connected to output terminals of the power supply, were moved so that they were in contact with the evaporator cage. See the figure below.
Thursday, September 08, 2022, 12:47
Target has been removed and a new test target (HP-FEBIAD) has been placed inside. System left to generate enough vacuum and then testing will be performed.
Friday, September 09, 2022, 15:58
System was tested and all seems good. This coat/sintering will continue after conditioning of graphite material
Saturday, September 24, 2022, 09:13
Continuation of process.
IGP1= 4.3e-07 Torr
ramping @ 1A/min to 230 A on both TGHt and TBHT
Saturday, September 24, 2022, 16:28
ramped to 430A, 7.2V on TGHT and 233A, 4.2V on TBHT. Will leave until 7 pm.
Saturday, September 24, 2022, 19:44
Starting rampdown @-2A/min TGHT -1A/min TBHT
camera offline
IGP1= 1.2e-6 Torr
Monday, September 26, 2022, 09:41
IGP1=2.2e-07 Torr. Shutting off TBHT and TGHT.
Thursday, September 29, 2022, 09:53
Final notes: coating looks good . Probably 3 hours at final temperature is better to prevent material degradation. |
Attachment 1: MicrosoftTeams-image_(13).png
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577
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Thursday, June 02, 2022, 16:53 |
Aaron Schmidt | Ta | 44691-12 | LP-SIS | In progress | Conditioning Ta#64 | Ta#64 LP-SIS target description:
Total Ta foils = 470 [6x20 packs + 350 single discs]
Foil Thickness = 0.0254mm (0.0010") Measured.
Target density = 12.005 g/cm3
Target length = 3.35 cm
Total Mass = 40.2166 g [Incl foils + Ta wire on 6 packs]
Total mass w/ Target oven= 446 g (w/ end caps)
Discs in target are arranged as follows: 1pack / 75 singles / 1pack / 100 singles / 2packs / 100 singles / 1pack / 75 singles / 1pack
End caps installed (Not expanded). No Ta foil heat shield added
Final desired temperature = 1900C.
Thursday, June 02, 2022, 16:49: Roughing
Thursday, June 02, 2022, 17:02: OMEGA slope = 0.98.
Thursday, June 02, 2022, 17:10: TP1 on.
Thursday, June 02, 2022, 17:21: TP1 is up to speed. PS on.
Friday, June 03, 2022, 05:22: Auto-ramping TGHT / TBHT to 500 / 200 A @ 2 A per min. Vacuum @ 1.78e-06T.
Friday, June 03, 2022, 08:59: TGHT / TBHT @ 424 / 200 A. Vacuum @ 3.42e-06T. Temperature @ 1318 C. Auto ramp ongoing.
Friday, June 03, 2022, 09:40: TGHT / TBHT @ 500 / 200 A. Vacuum @ 4.47e-06T. Temperature @ 1469 C. Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min
Friday, June 03, 2022, 10:47: TGHT / TBHT @ 580 / 230 A. Vacuum @ 6.26e-06T. Temperature @ 1620 C. Auto-ramping TGHT to 600 @ 2 A per min
Friday, June 03, 2022, 11:08: TGHT / TBHT @ 600 / 230 A. Vacuum @ 6.54e-06T. Temperature @ 1655 C. Auto-ramping TGHT to 630 @ 2 A per min
Friday, June 03, 2022, 11:30: TGHT / TBHT @ 630 / 230 A. Vacuum @ 7.73e-06T. Temperature @ 1708 C. Auto-ramping TGHT to 650 @ 2 A per min
Friday, June 03, 2022, 11:45: TGHT / TBHT @ 650 / 230 A. Vacuum @ 8.32e-06T. Temperature @ 1748 C. Auto-ramping TGHT to 660 @ 2 A per min
Friday, June 03, 2022, 11:53: TGHT / TBHT @ 660 / 230 A. Vacuum @ 8.83e-06T. Temperature @ 1755 C. Auto-ramping TGHT to 670 @ 2 A per min
Friday, June 03, 2022, 12:05: TGHT / TBHT @ 670 / 230 A. Vacuum @ 9.03e-06T. Temperature @ 1780 C. Auto-ramping TGHT to 680 @ 2 A per min
Friday, June 03, 2022, 12:11: TGHT / TBHT @ 680 / 230 A. Vacuum @ 9.14e-06T. Temperature @ 1795 C. Auto-ramping TGHT to 700 @ 2 A per min
Friday, June 03, 2022, 12:23: TGHT / TBHT @ 700 / 230 A. Vacuum @ 9.50e-06T. Temperature @ 1822 C. Auto-ramping TGHT to 720 @ 2 A per min
Friday, June 03, 2022, 12:29: TGHT / TBHT @ 720 / 230 A. Vacuum @ 1.00e-05T. Temperature @ 1853 C. Auto-ramping TGHT to 730 @ 2 A per min
Friday, June 03, 2022, 12:36: TGHT / TBHT @ 725 / 230 A. Vacuum @ 1.04e-05T. Temperature @ 1860 C. Manually tap up TGHT to reach desired temperature
Friday, June 03, 2022, 13:04: TGHT / TBHT @ 760 / 230 A. Vacuum @ 1.07e-05T. Temperature @ 1901 C. Desired temperature reached
Friday, June 03, 2022, 13:13: Auto-cooling at 2 A per min.

Monday, June 06, 2022, 07:07: PS off. BV1 closed & TP1 off.
Monday, June 06, 2022, 08:47: Venting. |
564
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Wednesday, November 10, 2021, 18:07 |
Aaron Schmidt | Ta | 44691-11 | LP-SIS | In progress | Conditioning Ta#63 | Ta#63 LP-SIS target description:
Total Ta foils = 470 [6x20 packs + 350 single discs]
Foil Thickness = 0.025mm
Target density = 15.38 g/cm3
Target length = 3.4 cm
Total Mass = 52.296 g [Incl foils + Ta wire on 6 packs]
Total mass w/ Target oven= 457 g (w/ end caps)
Discs in target are arranged as follows: 1pack / 75 singles / 1pack / 100 singles / 2packs / 100 singles / 1pack / 75 singles / 1pack
End caps installed (Not expanded). No Ta foil heat shield added
https://elog.triumf.ca/TIS/Target+Production/114
TBHT will be ramped up to 230A
TGHT will be ramped up to 600A +
Final desired temperature = 1900C.
OMEGA slope = 0.98.
Wednesday, November 10, 2021, 18:05: Roughing.
Wednesday, November 10, 2021, 18:14: Omega Laser set. On end cap / ok. Slope = 0.980
Wednesday, November 10, 2021, 18:24: Turbo pump on.
Wednesday, November 10, 2021, 18:25: RV1 valve hissing. Stop TP. Reset, open / close RV1 multiple times. Hissing stopped on its own. Won't affect the pump down, letting pressure out, not in. Will need to replace later.
Wednesday, November 10, 2021, 18:27: Turbo pump on.
Wednesday, November 10, 2021, 18:32: TP ok. PS on.
Thursday, November 11, 2021, 11:08: Vacuum @ 4.56e-07T. Auto ramping TGHT / TBHT to 580 / 230 A @ 2A per minute.
Thursday, November 11, 2021, 13:49: TGHT / TBHT @ 313 / 230 A. Vacuum @ 1.46e-06T. Temperature @ 1051 C. Auto ramp continues.
Thursday, November 11, 2021, 16:55: TGHT / TBHT @ 580 / 230 A. Vacuum @ 5.11e-06T. Temperature @ 1621 C. Auto ramp TGHT to 610 A @ 2 A per min.
Thursday, November 11, 2021, 17:13: TGHT / TBHT @ 610 / 230 A. Vacuum @ 6.54e-06T. Temperature @ 1670 C. Auto ramp TGHT to 630 A @ 2 A per min.
Thursday, November 11, 2021, 17:32: TGHT / TBHT @ 630 / 230 A. Vacuum @ 7.82e-06T. Temperature @ 1709 C. Auto ramp TGHT to 650 A @ 2 A per min.
Thursday, November 11, 2021, 18:49: TGHT / TBHT @ 650 / 230 A. Vacuum @ 7.40e-06T. Temperature @ 1758 C. Auto ramp TGHT to 665 A @ 2 A per min.
Thursday, November 11, 2021, 19:02: TGHT / TBHT @ 665 / 230 A. Vacuum @ 8.37e-06T. Temperature @ 1790 C. Auto ramp TGHT to 685 A @ 2 A per min.
Thursday, November 11, 2021, 19:22: TGHT / TBHT @ 685 / 230 A. Vacuum @ 9.56e-06T. Temperature @ 1830 C. Auto ramp TGHT to 700 A @ 2 A per min.
Thursday, November 11, 2021, 19:41: TGHT / TBHT @ 700 / 230 A. Vacuum @ 1.18e-05T. Temperature @ 1870 C. Manually tap up to 705 A
Thursday, November 11, 2021, 19:43: TGHT / TBHT @ 705 / 230 A. Vacuum @ 1.25e-05T. Temperature @ 1885 C. Manually tap up to 710 A
Thursday, November 11, 2021, 19:44: TGHT / TBHT @ 710 / 230 A. Vacuum @ 1.34e-05T. Temperature @ 1890 C. Manually tap up to 715 A
Thursday, November 11, 2021, 19:46: TGHT / TBHT @ 715 / 230 A. Vacuum @ 1.75e-05T. Temperature @ 1898 C. Manually tap up to 717 A
Thursday, November 11, 2021, 19:46: TGHT @ 717 A. Temperature @ 1901 C. Temperature reached.
Thursday, November 11, 2021, 19:48: Begin auto-cooling @ 2 A per min.


Friday, November 12, 2021, 06:13: PS off. TP1 off. |
562
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Wednesday, November 03, 2021, 09:24 |
Darwin Ortiz Rosales | Empty | 44691-10 | LP-SIS | Done | TaC coating/sintering | Ta tube was coated with TaC and wrapped with Ta heat-shields (3 layers)
Note: placed tantalum foil heatshield on both sides of the copper heatshield assembly.
Desired temperature = 1800 C (expected TGHT ~430 A), TBHT will be set fixed at 230A (max).
Evap 2 was pumped down yesterday
Good vacuum = 3.00 e-03Torr
Bad vacuum = 5.00 e-02 Torr
Wednesday, November 03, 2021, 09:27
Start autoramp at 1A/min to 40A on both TGHT and TBHT
IGP1 initial: 5.3 e-07 Torr
Wednesday, November 03, 2021, 10:22
IGP1= 1.1 e-05 Torr
TGHT = 40 A, 0.5 V
TBHT= 38.5 A, 0.41 V
Will keep while monitoring pressure at 0.5 A/min to 60A
Wednesday, November 03, 2021, 10:35
IGP1 pressure trending down
IGP1= 6.7 e-06 Torr
Start ramp up to 60A at 0.5A/min
Wednesday, November 03, 2021, 11:24
IGP1 2.6 e-06 Torr and trending down
Start ramp up to 400A on TGHT and 230A on TBHT at 1A/min
Wednesday, November 03, 2021, 13:28
IGP1= 1.4e-05 Torr and trending down slowly. Will increase ramp speed to 1.5A/min on both TGHT and TBHT to the same final current as before.
Wednesday, November 03, 2021, 15:56
IGP1= 2.1 e-05 Torr
TGHT = 400 A, 6.9 V
TBHT = 233 A, 4.1 V
OMEGA = 1645 C
Will manually ramp up to 1800 C
Wednesday, November 03, 2021, 16:43
TGHT = 450 A, 7.9 V
TBHT = 233 A, 4.1 V
OMEGA = 1770 C
IGP1 increasing in Pressure. Will leave for 4 hours at this current.
Wednesday, November 03, 2021, 20:48
IGP1= 1.0 e-05 Torr
TBHT= 233A, 4.1 V
TGHT = 450 A, 7.9 V
OMEGA = 1751 C
Starting ramp down at -2A/min on TGHT and -1A/min on TBHT
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534
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Friday, March 05, 2021, 10:48 |
Darwin Ortiz Rosales | TaC | 44691-1 | LP-SIS | Done | TaC coating/sintering | Friday, March 05, 2021, 10:47
Ta tube was coated with TaC and wrapped with Ta heat-shields (3 layers)
Initial weight including heat-shields = 431.0 g
Desired temperature = 1900 C (expected TGHT ~430 A), TBHT will be set fixed at 230A (max).
Evap 2 will be pumped down over night.
Good vacuum = 3.00 e-5 Torr
Bad vacuum = 5.00 e-5 Torr
Saturday, March 06, 2021, 10:29
IGP1= 2.7 e-07 Torr and stable
AutoRamp at 1A/min to 40 A on TGHT and TBHT
Saturday, March 06, 2021, 22:36
IGP1= 2.2e-07 Torr
TGHT = 40.3 A, .46V
TBHT = 38.48 A, .48 V (set to 40 A)
Start Autoramp at 0.5A/min to 400 A on TGHT and 230A on TBHT
Sunday, March 07, 2021, 07:48
IGP1=8.5e-7 Torr
TGHT = 287 A, 4.6V
TBHT = 232 A, 4.0 V
OMEGA = 1493C
Increase ramp speed on TGHT to 2A/min to 400A
Sunday, March 07, 2021, 08:36
IGP1=1.7 e-06 Torr
TGHT = 373.7 A, 6.3V
TBHT = 232.9 A, 4.1 V
OMEGA = 1752 C
Sunday, March 07, 2021, 08:53
IGP1= 1.7e-06 Torr
TGHT = 400 A, 6.8 V
TBHT = 232.8 A, 4.1 V
OMEGA= 1842
Ramp TGHT @ 2A/min to 420 A as per attached current approximation
Sunday, March 07, 2021, 09:25
OMEGA=1915 C
TGHT = 420A, 7.2V
TBHT= 232.8 A, 4.1V
IGP1= 1.6 e-06 Torr
Tap down manually to approx 1900 C
TGHT = 412.9 A, 7.0 V and OMEGA=1900 C
Will leave for about 4 hours at this temperature
Sunday, March 07, 2021, 13:05
IGP1= 1.1 e-06 Torr
TGHT = 415 A, 7.2 V
TBHT = 232.8 A, 4.1 V
OMEGA = 1880C
Start cool down at -2A/min on TGHT and -1A/min TBHT
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Attachment 1: 2021-03-07_090107-44691-1_Tac_Sintering.png
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561
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Monday, November 01, 2021, 07:39 |
Darwin Ortiz Rosales | Empty | 44508-3 | LP-SIS | Done | TaC coating/sintering | Monday, November 01, 2021, 07:37
Ta tube was coated with TaC and wrapped with Ta heat-shields (3 layers)
Note* on the leading end of the assembly I placed tantalum foil heatshield similar to what I previously observed there. I believe it may impact temperature at the entrance of the container tube.
Desired temperature = 1800 C (expected TGHT ~430 A), TBHT will be set fixed at 230A (max).
Evap 2 was pumped down over the weekend
Good vacuum = 3.00 e-03Torr
Bad vacuum = 5.00 e-02 Torr
Monday, November 01, 2021, 07:39
Starting autoramp at 1 A/min to 40 A on both TGHT and TBHT
IGP1= 3.5 e-07 Torr
Monday, November 01, 2021, 09:08
IGP1= 1.6 e-06 Torr
TGHT = 40A, 0.99 V
TBHT = 39A, 1,2 V
Start autoramp @ 1A/min for both TGHT and TBHT to 400A and 230A respectively.
Monday, November 01, 2021, 14:33
OMEGA= 1545 C
TGHT = 354 A, 6.0 V
TBHT = 233 A, 4.8 V
IGP1= 1.7 e-05 Torr
increase ramp rate to 2A/min
Monday, November 01, 2021, 14:44
OMEGA= 1585C
TGHT = 367A, 6.3 V
TBHT = 233 A, 4.8 V
IGP1= 1.7 e-05 Torr
Monday, November 01, 2021, 14:49
OMEGA= 1604 C
TGHT = 377A, 6.5V
TBHT = 233 A, 4.8 V
IGP1= 2.1 e-05 Torr
Monday, November 01, 2021, 14:53
OMEGA= 1624C
TGHT = 384 A, 6.6V
TBHT = 233 A, 4.8 V
Monday, November 01, 2021, 15:00
OMEGA= 1660C
TGHT = 400 A, 6.8V
TBHT = 233 A, 4.8 V
IGP1= 2.4 e-05 Torr
Monday, November 01, 2021, 15:17
Initiate autoramp to 430A on TGHT @2A/min
Monday, November 01, 2021, 16:34
OMEGA = 1750 C
TGHT = 430 A, 7.3 V
Better heat insulation than before. Next time need to place a Ta heatshield at the other end on the copper assembly. Will raise T to 435 A and keep until 1930 hours.
Monday, November 01, 2021, 20:23
IGP1= 1.6 e-05 Torr
Omega = 1760 C
TGHT= 436 A, 7.4 V
TBHT = 232 A, 4.8 V
* Note: kept a approx 1 hour extra hoping that pressure would drop further
Started ramp down at -2A/min for TGHT and -1A/min for TBHT
Coating looks reasonably good.
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Attachment 1: 211101-TaC_coating.png
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