 Wednesday, August 12, 2020, 08:58, Aaron Schmidt, , , , In progress, Install Flex line HS
|
Flex line HS installed. New SS gaskets.
Wednesday, August 12, 2020, 08:56: Roughing (Check).
Wednesday, August 12, 2020, 09:17: Ready for turbo pump.
Wednesday, August 12, 2020, 09:20: BP1 Off. Venting. |
|
Tuesday, August 11, 2020, 10:17, Ferran Boix Pamies, Empty, 41882-1, TARGET BOAT, In progress, Contamination foils temperature test
|
The target was prepared and put under vacuum on 2020-08-10
2020-08-11 10:16am The pressure is 1e-6Torr. Leak checked performed, water on no problem. Starting to set target heating curve. 1A/10s up to 300A
2020-08-11 11:23am target at 300A-1200degC Temperatures on exposed foil show to be higher than expected. 300degC already, 70degC on covered by foil thermocouple. Putting 50 more amps at 1A/10s
2020-08-11 12:11pm target at 350A-1340degC. 350degC on exposed thermocouple. Ramping to 400A 1A/10s.
2020-08-11 12:28pm target at 400A-1420degC. 400degC on exposed thermocouple. Ramping to 450A 1A/10s. |
|
Wednesday, August 05, 2020, 19:14, Ferran Boix Pamies, Empty, 41882-1, TARGET BOAT, Done, Parasitic target cooling test
|
2020-08-05 7.13pm Roughing pump on
2020-08-06 10:48am Turbo was turned on by Marla in the morning. Vacuum IGP1 4e-6Torr. Water leak check performed, everything good to start heating up target. Waiting for Anders confirmation to start.
2020-08-06 4:38pm after changing setup to metallic connections only. Roughing on. After some minutes abnormal behavior in vacuum.
Turning water off to see if it is a small water leak.
Water purged, no change in vacuum.
IEVAP2:RV1 was closed. After opening, normal vacuum behavior recovered. The valve is automatically closing when reaching 100Torr. Wasn't doing that before. Turbo on now.
2020-08-07 9:24am pumping over night, vacuum at 8e-7torr. Everything ready for test. Ramping up target heater.Up to 50A 1A/20s
2020-08-07 9:48am all good at 50A, ramping to 250 1A/10s
2020-08-07 10:27am all good at 250A, ramping to 400 1A/10s
2020-08-07 10:57am all good at 400A, ramping to 500 1A/10s
2020-08-07 11:17am Tc type C might have been deatached at 500A, ramping to 600 1A/10s
2020-08-07 11:37am All good, ramping to 700 1A/10s
2020-08-07 11:58am 1950degC on pyrometer, 1200degC on type C TC (probably not well attached anymore), TCs on heatshield [30-40]degC. Pressure 9e-6Torr
2020-08-07 12:44pm All values stable after 45min, starting to ramp up parasitic target heating elements.
2020-08-07 1:15pm Open circuit, would seem that one of the heating elements cracked. Cooling down the target.
|
|
Wednesday, August 05, 2020, 13:38, Aaron Schmidt, , , , , RP Swap on EVAP 2
|
BP1 swapped with RP2 (TS beamline)
U-line installed.
Wednesday, August 05, 2020, 13:37: Roughing.
Wednesday, August 05, 2020, 13:39: Open RV1 to EVAP 2 chamber.
Wednesday, August 05, 2020, 14:08: Turbo pump on.
Wednesday, August 05, 2020, 14:17: Turbo pump on (green) / Shut - off.
Wednesday, August 05, 2020, 14:18: BP1 off. Runs ok. |
|
Friday, July 31, 2020, 11:16, Ferran Boix Pamies, Empty, 41882-1, TARGET BOAT, Done, Thermocouple measurent of boat temperature
|
Boat with attached thermocouple type C with AREMCO ceramabond glue installed in evap2 the 30-07-2020
Vacuum 3.2e-6torr in IGP1 after night with the roughing pump and morning with turbo.
TGHT heater on.
ramp up started
1A/20s up to 200A
Thermocouple de-attached at about 400A.
Target cooled down. 1A/10s
Turbo and roughing pump off. System left with present vacuum over night. Tomorrow inspection. |
|
Saturday, July 25, 2020, 08:58, Darwin Ortiz Rosales, ZrC, 44139-7-SK, , In progress, ZrC for Luca's experiments
|
Friday, July 24, 2020, 15:00
Ta tube cotaining 497 ZrC discs wrapped with Ta heat-shields (3 layers)
Desired temperature= 1800C (expected TGHT 410 A), TBHT will be set fixed at 230A (max).
good vacuum = 3.00 e-05 Torr
bad vacuum = 5.00 e-05 Torr
Evap 2 was left to pump down over night.
Saturday, July 25, 2020, 08:57
IGP1= 8.7 e-07 Torr
Start ramp at 0.25 A/min to 20 A on TGHT
Saturday, July 25, 2020, 10:07
IGP1= 2.7e -06 Torr
Set ramp target to 30 A
Wednesday, July 29, 2020, 13:11
OMEGA reading 1700 C at 430 A during the night. It was kept at this temperature for 3.5 hours. The OMEGA slope was not changed from 0.990
when IGP1 = 1.2 e-06 Torr and stable, cooling was started at -3A/min at 9 am on this day.
IGP1= 2.2 e-07 Torr now at time of dismounting
|
|
Monday, July 20, 2020, 19:25, Darwin Ortiz Rosales, SiC, 44139-11, LP-SIS, Done, SiC sintering for Luca 2 of 2
|
Monday, July 20, 2020, 19:27
Coated Ta tube cotaining 355 SiC disks wrapped with Ta heat-shields (3 layers)
Desired temperature= 1800C (expected TGHT 410 A), TBHT will be set fixed at 230A (max).
good vacuum = 3.00 e-05 Torr
bad vacuum = 5.00 e-05 Torr
Evap 2 was left to pump down over night.
Monday, July 20, 2020, 23:06
IPG1 = 3.1e-06 Torr
Start autoramp at .25A/min to 40A for both TGHT and TBHT
Tuesday, July 21, 2020, 08:06
TGHT = 40.3 A, 0.51 V
TBHT = 39.0 A, 0.46 V
increase auto ramp limit to 50 A for both TGHT and TBHT
IGP1=1.8e-05 Torr
Tuesday, July 21, 2020, 16:22
IGP1= 1.5 e-05 Torr
TGHT = 50.1 A, 0.65 V
TBHT = 50.0 A, 0.60 V
Change ramp target to 350 A for TGHT and 230A for TBHT
Wednesday, July 22, 2020, 13:24
Stopped autoramp. Will allow pressure to drop.
TGHT = 64.0 A, 0.86 V
TBHT = 64.5 A, 0.82 V
Thursday, July 23, 2020, 23:55
TGHT Reached 430 A, 7.7 V
OMEGA reads 1310 C but reading is not considered accurate so will leave at this current for 4 hours.
Friday, July 24, 2020, 11:31
IGP1 = 1.98e-07 Torr
Window for pyrometer was coated with condensate.
Dismounted target and cleaned two windows in line with the pyrometer.
|
|
Thursday, July 16, 2020, 11:15, Darwin Ortiz Rosales, SiC, 44139-11, LP-SIS, Done, SiC sintering for Luca 1 of 2
|
Thursday, July 16, 2020, 11:15
Coated Ta tube cotaining 233 SiC disks wrapped with Ta heat-shields (3 layers)
Desired temperature= 1800C (expected TGHT 410 A), TBHT will be set fixed at 230A (max).
Evap 2 was pumped down
Friday, July 17, 2020, 08:49
Total length packed approximately 10 cm
container has 3 Ta heat shields.
No endcaps inserted to facilitate out-gassing
Two TaC coated Ta wire springs inserted at both ends.
Initially to ramp TGHT and TBHT to 40 A at 0.5 A/min
Then heat ramping TGHT manually and automatically to reach 400 A (Omega slope set = 0.990)
Then ramp to temperature = 1800 C
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
Initial IGP1 = 6.45e-07 Torr
Friday, July 17, 2020, 20:49
TBHT = 38.9 A, 0.47 V
TGHT = 39.7 A, 0.59 V
IGP1 = 9.1e-06 Torr
Autoramp to 50 A at 0.5 A/min for both TGHT and TBHT
Saturday, July 18, 2020, 09:04
IGP1 = 1.6e-06 Torr
TGHT = 50.5 A, 0.76V
TBHT = 49.7 A, 0.62 V
Starting autoramp at 0.5 A/ min to 400 A TGHT and 230 A TBHT
Saturday, July 18, 2020, 10:17
IGP1 = 5.06e-05 torr
stopped autoramp and allow pressure to decrease and stabilize
Saturday, July 18, 2020, 10:47
IGP1 = 6.65 e-06 Torr and trending down
TGHT = 55.4 A, 0.83 V
TBHT= 54.6 A, 0.68 V
Change autoramp to 0.25 A/min for both heaters (.05 increments and 120s wait)
Sunday, July 19, 2020, 08:46
IGP1= 2.2 e-05 Torr
TBHT = 109.5 A, 1.6 V
TGHT = 106.6 A, 1.7 V
increased ramping rate to .5A/min by decreasing wait intervals to 60 s
Sunday, July 19, 2020, 14:55
IGP1 = 7.1 e -06 Torr
TGHT = 271.8 A, 4.7 V
TBHT = 233.1 A, 4.1 V
Increasing ramping rate to 1 A/min
Sunday, July 19, 2020, 17:35
IGP1 = 2.6e-06 Torr
TGHT = 400 A, 7.2 V
TBHT = 233 A, 4.1 V
Tap manually to 410 (expected 1800 C )
Note* OMEGA reading cannot be obtained.
Leave at 410 A on TGHT for 4 hours.
Sunday, July 19, 2020, 22:57
IGP1 = 7.0 e-07 Torr
TGHT= 410 A , 7.2 V
TBHT = 233 A, 4.2 V
Start cool down at -2A/min for TGHT and -1A/min for TBHT
Monday, July 20, 2020, 12:20
IGP1 = 2.2e-07 Torr
Unloading target |
|
Monday, July 13, 2020, 11:03, Aaron Schmidt, , , , , Pump down / leak / vacuum check.
|
Darwin reported that he was unable to achieve vacuum of 150mTorr. The flex-line HS had been removed last week for modifications. SS gaskets received today. Replaced HS gaskets (Cu).
Monday, July 13, 2020, 11:00: Roughing.
Monday, July 13, 2020, 11:44: Vacuum to 200mTorr. Venting.
Monday, July 13, 2020, 11:55: Roughing. HS waterlines were opened. No visible leak detected.
Monday, July 13, 2020, 12:32: Venting. Vacuum to 175mTorr.
Monday, July 13, 2020, 12:34: Roughing.
Monday, July 13, 2020, 15:21: Turn off the roughing pump. Vent in the am & plan to remove the HS to leak check the HS & EVAP 2.
Tuesday, July 14, 2020, 07:42: Venting.
Tuesday, July 14, 2020, 08:23: Flexible line HS removed. U-Line installed. Roughing.
Tuesday, July 14, 2020, 08:54: Turbo pump on.
Tuesday, July 14, 2020, 11:15: Vacuum @ 3.14e-06T. Turbo & Roughing pump off.
Tuesday, July 14, 2020, 11:25:
HS leak checks:
0.0e-08 atm-cc/sec
0.0e-07 atm-cc/sec @ 75 PSI He w/ sniffer.
0.0e-07 atm-cc/sec @ 120 PSI He w/ sniffer. (Note HS is very dirty inside)
Tuesday, July 14, 2020, 11:35: Venting EVAP 2. He bottle connected on "Air-In" on the HS water supply line.
Tuesday, July 14, 2020, 13:50:
Pressurized the HS lines on EVAP 2 w/ 30 PSI He for 10 minutes. Remained @ 0.0e-07 atm-cc/sec.
Tuesday, July 14, 2020, 13:53: Roughing.
Tuesday, July 14, 2020, 17:33: Turbo pump on.
Wednesday, July 15, 2020, 10:31: Turbo pump off.
Wednesday, July 15, 2020, 12:02: HS Leak checked in the cold lab: 0.0e-07 atm-cc/sec @ 120 PSI He w/ sniffer.
Wednesday, July 15, 2020, 12:34: Venting.
Wednesday, July 15, 2020, 13:37: Installed flex-line HS. Pressurized the HS lines on EVAP 2 w/ 30 PSI He for 10 minutes. Remained @ 0.0e-07 atm-cc/sec.
Wednesday, July 15, 2020, 13:42: Roughing.
Wednesday, July 15, 2020, 14:16: Turbo pump on.
Wednesday, July 15, 2020, 15:59: Vacuum @ 3.85e-06T
Wednesday, July 15, 2020, 16:00: Waterline opened. No immediate response on Vacuum.
Wednesday, July 15, 2020, 16:03: Vacuum @ 3.69e-06T and continuing to drop. |
|
Monday, June 15, 2020, 14:28, Darwin Ortiz Rosales, Empty, 42218-7, HP-SIS, Done, TaC coating/sintering
|
Monday, June 15, 2020, 13:30
Container coated with TaC and wrapped with 3 Ta heat shields.
Desired temperature= 1900 C, Omega Slope set = 0.990, Auto TGHT at 0.2A/min to reach 400A, TGHT will be tapped up accordingly to reach desired Temp.
TBHT will be set fixed at 230 A max).
Good vac at 3.00e -5 Torr
Bad vac at 5.00e-5 Torr
Chamber pump down
Tuesday, June 16, 2020, 08:55
IGP1= 4.2e-7 Torr
Starting ramp to 50A at 0.2A/min for both TGHT and TBHT. Observing pressure behaviour.
Tuesday, June 16, 2020, 14:14
IGP1 = 9.0e-7 Torr
TGHT = 50.3 A, 0.6 V
TBHT = 49.4 A, 0.54 V
Set TGHT to 400A and TBHT to 230A
Tuesday, June 16, 2020, 16:58
IGP1 = 7.32e-7 Torr
TGHT = 82.3A, 1.0 V
TBHT = 81.8 A, 0.96V
Will try to increase ramp rate to 2 A/min for both TGHT and TBHT
Tuesday, June 16, 2020, 17:30
Pressure spike.
IGP1 = 2.5e-5Torr
TGHT = 44.1 A, 0.57 V
TBHT = 43.0 A, 0.49 V
Will return to 0.2A/ min ramp rate for both heaters
Thursday, June 18, 2020, 20:26
Autoramped to 720A , 11.6V on TGHT at 0.2A/min
OMEGA = 1850C
Manually ramped to 740 A , on TGHT while TBHT remains at 230A
OMEGA= 1885 C
IGP1=4.6e-06 Torr trending down
Will remain at this temperature for next 4 hours
NOTE* Current on TGHT very unstable (oscillates)
Friday, June 19, 2020, 11:31
Last night at 00:15 am started cooling TGHT at -2A/min and TBHT at -0.2 A/min
(The elog entry was not submitted and computer restarted overnight so notes were lost).
at 6:30 am Friday June 19, 2020
Increased TBHT cooling to -2A/min and decreased THGT cooling to -1A/min
Monday, June 22, 2020, 13:54
IGP1= 8.1e-8 Torr
Evaporator vented and container pulled out. There is slight peeling near one end of the container. This area should be on the outside of the end-caps so the container should be usable.
Files to be uploaded later.
|
Thursday, June 11, 2020, 13:01, Darwin Ortiz Rosales, Empty, 44139-12, LP-SIS, Done, 
|
Thursday, June 11, 2020, 09:56
Previous day (Wednesday June 10, 2020)
Container coated with TaC and wrapped with 3 Ta heat shields.
Desired temperature= 1900 C, Omega Slope set = 0.990, Auto TGHT at 0.2A/min to reach 400A, TGHT will be tapped up accordingly to reach desired Temp.
TBHT will be set fixed at 230 A (max).
Good vac at 3.00e -5 Torr
Bad vac at 5.00e-5 Torr
Chamber pump down
Thursday, June 11, 2020, 10:19
IEVAP2:IGP1=1.06e-6 Torr
ramping to 40A (TGHT and TBHT) at 1A/min
Thursday, June 11, 2020, 12:35
IEVAP2:IGP1=1.8e-6 Torr
TGHT = 39.8 A, 0.45V
TBHT=38.5 A, 0.48V
Manually rampted to 45A on both TGHT and TBHT
Thursday, June 11, 2020, 12:58
IEVAP2:IGP1=1.6e-6 Torr
TGHT = 34.8 A, 0.52V
TBHT=44.2A, 0.55V
Start Autoramp at .5A/min to 400A on TGHT and 230A on TBHT
Thursday, June 11, 2020, 17:14
Irregular pressure profile. Cooling . Need to check for leak.
TGHT = 99 A 1.3 V
TBHT = 99 A 1.4 V
Friday, June 12, 2020, 12:59
Restarting ramping
IGP1= 4.98e7 Torr
Autoramp at 1A/min to 400A on TGHT and 230A on TBHT
(pressure and TGHT current and voltage profile seem normal compared to previous coating sintering with the same power supply)
Friday, June 12, 2020, 14:40
Paused ramping
TGHT = 90A
After a few minutes the profile (noise) was still there. Continue autoramp at 0.5A/min to 400 A on TGHT and 230A on TBHT
Friday, June 12, 2020, 15:21
IGP1= 1.97e-06 Torr trending down
TGHT = 111.5 A , 1.5 V
TBHT = 112.9 A, 1.9 V
Increase ramping speed to 1A/min to 400A on TGHT and 230A on TBHT
Friday, June 12, 2020, 20:50
OMEGA = 1754 C
IGP1= 2.5e-6 Torr
TGHT = 394.1 A, 6.6 V
TBHT = 232.8 A, 4.0 V
Tapping to 1900 C
Friday, June 12, 2020, 21:00
OMEGA =1901 C
IGP1= 5.6e-6 Torr
TGHT = 448.3 A, 7.5 V
TBHT = 232.8 A, 4.1 V
Saturday, June 13, 2020, 00:51
OMEGA = 1898 C
IGP1 = 2.0e-6 Torr
TGHT = 447.2 A, 7.5 V
TBHT = 232.9 A, 4.1 V
Start cooling at -2A/ min for TGHT and -1A/min for TBHT
|
|
Monday, June 01, 2020, 12:03, Aaron Schmidt, Ta, 44139-13, LP-SIS, In progress, Ta#60 Conditioning
|
Ta#60 LP-SIS target description:
Total Ta foils = 470 [6x20 packs + 350 single discs]
Foil Thickness = 0.025mm
Target density = 14.081 g/cm3
Target length = 3.33 cm
Total Mass = 46.891 g [Incl foils + Ta wire on 6 packs]
Total mass w/ Target oven= 445g w/ end caps)
Discs in target are arranged as follows: 1pack / 75singles / 1pack / 100singles / 2packs / 100singles / 1pack / 75singles / 1pack
End caps installed (Expanded). No Ta heat shield added.
https://elog.triumf.ca/TIS/Target+Production/98
Monday, June 01, 2020, 11:38: Roughing.
Monday, June 01, 2020, 12:03: Turbo pump on.
TBHT will be ramped up to 230A at 1.0A/min.
TGHT will be ramped up to 600A + at 2.0A/min.
Final desired temperature = 1900C.
OMEGA slope = 0.98.
Tuesday, June 02, 2020, 07:13: Omega slope set to 0.98. Power supplies / sources on. vacuum@ 5.13e-07T.
Tuesday, June 02, 2020, 07:16: Manually tap up TGHT / TBHT to 40 / 5 A. Vacuum @ 5.08e-07T.
Tuesday, June 02, 2020, 07:19: Auto-ramping TGHT / TBHT @ 2 A per min to 350 / 150 A.
Tuesday, June 02, 2020, 10:02: Auto-ramping TGHT / TBHT @ 2 / 1 A per min to 450 / 200 A. Vacuum @ 1.39e-06T. TGHT Voltage= 5.955V. Omega: 1288 deg C.
Tuesday, June 02, 2020, 11:54: Auto-ramping TGHT / TBHT @ 2 / 1 A per min to 500 / 230 A. Vacuum @ 1.85e-06T. TGHT Voltage= 7.998V. Omega: 1528 deg C.
Tuesday, June 02, 2020, 13:16: Auto-ramping TGHT @ 2 A per min to 550 A. Vacuum @ 2.51e-06T. TGHT Voltage= 9.060V. Omega: 1625 deg C.
Tuesday, June 02, 2020, 13:58: Auto-ramping TGHT @ 2 A per min to 600 A. Vacuum @ 3.53e-06T. TGHT Voltage= 9.060V. Omega: 1728 deg C.
Tuesday, June 02, 2020, 14:23: Auto-ramping TGHT @ 2 A per min to 625 A. Vacuum @ 5.56e-06T. TGHT Voltage= 11.236V. Omega: 1821 deg C.
Tuesday, June 02, 2020, 14:36: TGHT / TBHT 625 / 230 A. Vacuum @ 6.65e-06T. TGHT Voltage= 11.724V. Omega: 1865 deg C.
Tap up TGHT manually.
Tuesday, June 02, 2020, 14:48: TGHT / TBHT 643 / 230 A. Vacuum @ 7.24e-06T. TGHT Voltage= 12.129V. Omega: 1901-1903 deg C.
Desired temperature = 1900C reached.
Tuesday, June 02, 2020, 22:20: TGHT / TBHT 643 / 230 A. Vacuum @ 2.05e-06T. TGHT Voltage= 12.212V. Omega: 1901-1903 deg C.
Tuesday, June 02, 2020, 22:22: Auto-Cooling @ 1 A per min.
Wednesday, June 03, 2020, 06:08: TBHT @ 0. TGHT set for Auto-Cooling @ 2 A per min.
Wednesday, June 03, 2020, 11:38: PS off. Turbo pump off.
Wednesday, June 03, 2020, 12:40: Venting. |
|
Friday, May 29, 2020, 10:26, Marla Cervantes, Empty, 43044-8, LP-SIS, Done, TaC coating/sintering
|
Friday, May 29, 2020, 08:52
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
Good vacuum= 3.00 e-5 Torr
Bad vacuum = 5.00 e-5 Torr
Ramped TGHT and TBHT to 40A at 0.5A/min
Initial IGP1 = 3.7e-7 Torr
Friday, May 29, 2020, 10:23
Autoramp deliver 40 A
TGHT = 0.47 V, 40.72 A
TBHT = 0.5 V, 38.78 A
IGP1 = 4.5 e-6 Torr and going down
Autoramp TGHT and TBHT at 1A/min to 400A and 230A respectively.
Friday, May 29, 2020, 11:27
Autoramp was stopped at 70 A, since pressure kept increasing, current was manually decreased to 65 A in both TGHT and TBHT.
The system will remain at current conditions until pressure reduce.
Friday, May 29, 2020, 12:44
Autoramp TGHT and TBHT at 1A/min to 400A and 230A respectively.
Saturday, May 30, 2020, 00:23
Autoramp deliver 400 A at TGHT and 230 A at TBHT
TGHT = 7.8 V, 453.9 A
TBHT = 4.21 V, 232.9 A
IGP1 = 9.7 e-6 Torr and going down
Omega = 1893 degC
Autoramp TGHT and TBHT at -1A/min to 400 A
Initiating auto-cool at -2.0A/min and -1.0A/min for the TGHT and TBHT respectively
|
|
Wednesday, May 27, 2020, 13:04, Marla Cervantes, , 44139-7-SK, , Done, Conditioning graphite target #2
|
Wednesday, May 27, 2020, 10:22
IGP1 = 3.2e-7 Torr
TGHT = 0.186 V, 0.028 A
The autoramp is set to 50A:
1 A each 10 s with a good vacuum of 3e-2 Torr and a bad vacuum 5e-2 Torr
Wednesday, May 27, 2020, 10:40
TGHT = 1.17 V, 50.9 A
PS = 1.21 V, 50 A
IGP1 = 8e-4 Torr and going down
Autoramp is set to 80 A same conditions
1 A each 10 s with a good vacuum of 3e-2 Torr and a bad vacuum 5e-2 Torr
Wednesday, May 27, 2020, 12:29
TGHT = 1.59 V, 80.04 A
PS = 1.58 V, 80 A
IGP1 = 2e-4 Torr and going down
Autoramp is set to 100 A,conditions:
1 A each 20 s with a good vacuum of 3e-2 Torr and a bad vacuum 5e-2 Torr
Wednesday, May 27, 2020, 12:38
TGHT = 1.97 V, 100.35 A
IGP1 = 4e-4 Torr
Autoramp is set to 120 A,conditions:
1 A each 20 s with a good vacuum of 3e-2 Torr and a bad vacuum 5e-2 Torr
Wednesday, May 27, 2020, 12:48
TGHT = 2.27 V, 119.1 A
IGP1 = 4e-4 Torr
Autoramp is set to 190 A,conditions:
1 A each 10 s with a good vacuum of 3e-2 Torr and a bad vacuum 5e-2 Torr
Wednesday, May 27, 2020, 13:03
TGHT = 3.4 V, 191.25 A
IGP1 = 3e-4 Torr
Autoramp is set to 190 A,conditions:
2 A each 10 s with a good vacuum of 3e-2 Torr and a bad vacuum 5e-2 Torr
Wednesday, May 27, 2020, 13:36
TGHT = 7.8 V, 423 A
IGP1 = 3e-4 Torr
Autoramp is set to 450 A,conditions:
2 A each 10 s with a good vacuum of 3e-2 Torr and a bad vacuum 5e-2 Torr
Wednesday, May 27, 2020, 13:43
TGHT = 8.5 V, 451.6 A
IGP1 = 2e-4 Torr
Autoramp is set to 520 A,conditions:
2 A each 10 s with a good vacuum of 3e-2 Torr and a bad vacuum 5e-2 Torr
Wednesday, May 27, 2020, 14:02
TGHT = 10.3 V, 508.16 A
Power supply = 10.39 V, 506 A
Omega = 2000 degC
AP = 2046.4 degC
After 3 hours at 2000 degC, the autoramp was set to 0 A,
conditions: -2 A each 10 s.
Note: There was a voltage drop of 0.6 V (fig. elog-484-fig2) |
|
Sunday, May 24, 2020, 13:39, Marla Cervantes, Empty, 44139-11, LP-SIS, Done, TaC coating/sintering
|
Sunday, May 24, 2020, 06:54
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
Good vacuum= 3.00 e-5 Torr
Bad vacuum = 5.00 e-5 Torr
Ramped TGHT and TBHT to 40A at 0.5A/min
Initial IGP1 = 2.5e-7 Torr
Sunday, May 24, 2020, 08:24
Autoramp deliver 40 A
TGHT = 0.58 V, 39.6 A
TBHT = 0.46 V, 39.81 A
IGP1 = 2.9 e-7 Torr and increasing
Heater conditions will be hold for 15 min to account for pressure changes.
Sunday, May 24, 2020, 08:39
IGP1 = 2.7e-7 Torr and decreasing
Autoramp TGHT and TBHT at 1A/min to 400A and 230A respectively.
Sunday, May 24, 2020, 14:57
After 15 min the autoramp stopped
TGHT = 6.8 V, 394.65 A
TBHT =4 V, 232.9 A
IGP1 = 2.2e-6 Torr and going down
Omega = 1747 degC
Autoramp set to TGHT 1A/min to 450A
Sunday, May 24, 2020, 16:07
After 15 min the autoramp stopped
TGHT = 7.7 V, 448 A
IGP1 = 2.88e-6 Torr
Omega = 1886 degC
The current will be increased manually to reach 1900 deg C
Final TGHT = 7.9 V, 453.15 A (455 A input)
Omega = 1899 degC
The TGHT and TBHT will leave at current conditions until pressure reduce (approx 4 hours)
Sunday, May 24, 2020, 20:01
TGHT = 7.9 V, 456 A
TBHT = 4 V, 232.9 A
IGP1 = 1.8e-6 Torr
Omega = 1893 degC
Initiating auto-cool at -2.0A/min and -1.0A/min for the TGHT and TBHT respectively. |
|
Monday, March 23, 2020, 07:50, Marla Cervantes, , 41882-1, TARGET BOAT, Done, Conditioning graphite target #1 (T2)
|
Friday, March 20, 2020, 19:39
The target material is loaded in a graphite cartridge.
The graphite cartridge is placed in a new tantalum boat previously without TaC,
the Ta boat was wrapped with three new Ta heat shields.
The system is currently pumping down.
Monday, March 23, 2020, 07:49
IGP1 = 2.2e-7 Torr
Good vacuum= 3.00 e-5 Torr
Bad vacuum = 5.00 e-5 Torr
Ramping TGHT to 40A at 0.5A/min
Monday, March 23, 2020, 10:35
Due to the COVID-19, non-essential activities are wrapped up,
the conditioning of the carbon target will be postponed until further notice |
 Wednesday, May 20, 2020, 12:54, Marla Cervantes, , 41882-1, TARGET BOAT, Done, Conditioning graphite target #1 (T2)
|
| Marla Cervantes wrote: |
|
Friday, March 20, 2020, 19:39
The target material is loaded in a graphite cartridge.
The graphite cartridge is placed in a new tantalum boat previously without TaC,
the Ta boat was wrapped with three new Ta heat shields.
The system is currently pumping down.
Monday, March 23, 2020, 07:49
IGP1 = 2.2e-7 Torr
Good vacuum= 3.00 e-5 Torr
Bad vacuum = 5.00 e-5 Torr
Ramping TGHT to 40A at 0.5A/min
Monday, March 23, 2020, 10:35
Due to the COVID-19, non-essential activities are wrapped up,
the conditioning of the carbon target will be postponed until further notice
|
Wednesday, May 20, 2020, 12:50
On May 19 the pumps of EVAP2 were turned on to purge the system
Today Aaron made a leak check, for details, visit elog-481
Currently IGP1 = 8.17e-7 Torr
Thursday, May 21, 2020, 09:41
IGP1 = 4.5e-7 Torr
TGHT = 0.03 V, 0.028 A
Current will be increased manually to 10 A, and then it will be autoramp to 500 A
Whit this power supply the current increments are register since the beging
TGHT = 0.145 V, 10.35 A
During the input of the 10 A there was no anomaly with the pressure and the autoramp was set to 50A:
1 A each 10 s with a good vacuum of 3e-2 Torr and a bad vacuum 5e-2 Torr
Thursday, May 21, 2020, 10:39
The autoramp reached the 50 A set
TGHT = 0.65 V, 49.05 A
Power supply = 0.64 V, 50 A
IGP1 = 4.7e-7 Torr
Everything looks good, autoramp is set to 80 A same conditions
1 A each 10 s with a good vacuum of 3e-2 Torr and a bad vacuum 5e-2 Torr
Thursday, May 21, 2020, 10:49
The autoramp reached the 80 A set
TGHT = 1.075 V, 79.36 A
Power supply = 1.07 V, 80 A
IGP1 = 1.7e-6 Torr and increasing
Autoramp is set to 100 A,conditions:
1 A each 20 s with a good vacuum of 3e-2 Torr and a bad vacuum 5e-2 Torr
There was a jump in the vacuum e-log-482-fig-1.
Thursday, May 21, 2020, 11:01
The autoramp reached the 100 A set
TGHT = 1.4V, 99.9 A
Power supply = 1.4V, 100 A
IGP1 = 0.001 Torr and increasing
Autoramp is set to 120 A,conditions:
1 A each 20 s with a good vacuum of 3e-2 Torr and a bad vacuum 5e-2 Torr
Thursday, May 21, 2020, 11:12
TGHT = 1.75 V, 120.6 A
Power supply = 1.74 V, 120 A
IGP1 = 0.0018 Torr
The current will be hold and to let the vacuum reduce
Thursday, May 21, 2020, 11:34
TGHT = 1.8 V, 120.825 A
Power supply = 1.74 V, 120 A
IGP1 = 9.8e-5 Torr
Thursday, May 21, 2020, 11:37
Autoramp is set to 300 A,conditions:
2 A each 10 s with a good vacuum of 3e-2 Torr and a bad vacuum 5e-2 Torr
Thursday, May 21, 2020, 12:21
TGHT = 5.015 V, 298.125 A
Power supply = 5 V, 300 A
IGP1 = 4.77e-5 Torr
Omega = 1130 degC
Note: Measurments will be taken with ARIEL's pyrometer (I will call it AP in this elog).
The emmisivity this pyrometer accounts for is 0.91 for the range of 1000 C to 1800 C
Above 01800 it will use 0.93 as the emissivity
AP = 977.7 degC
|
|
Wednesday, May 20, 2020, 07:18, Aaron Schmidt, , , , , Check Evap 2
|
Gradually open waterlines under vacuum after period of no use.
Wednesday, May 20, 2020, 07:17: Vacuum @ 1.13e-06T
Wednesday, May 20, 2020, 07:19: Hot lab cooling water return opened. Vacuum @ 1.13e-06T.
Wednesday, May 20, 2020, 07:22: Hot lab cooling water supply opened. Vacuum @ 1.11e-06T.
Wednesday, May 20, 2020, 07:29: Vacuum remains stable @ 1.11e-06T.
|
|
Wednesday, March 18, 2020, 07:21, Marla Cervantes, TaC, 44139-11, LP-SIS, Done, TaC coating/sintering
|
Wednesday, March 18, 2020, 07:10
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 on the previous night.
Good vacuum= 3.00 e-5 Torr
Bad vacuum = 5.00 e-5 Torr
Ramped TGHT and TBHT to 40A at 0.5A/min
Initial pressure IGP1 = 4.8e-7Torr
Wednesday, March 18, 2020, 09:29
After an hour pressure reduced to 5.45e-6 Torr
TGHT; 0.518 V, 40.5 A
TBHT: 0.41 V, 38.6 A
Autoramp TGHT and TBHT at 1A/min to 400A and 230A respectively.
Wednesday, March 18, 2020, 18:29
TGHT = 400A, 6.6V, TBHT= 232.9, 3.9V
OMEGA = 1240 C, this is 500 degC lower than previous LP-SIS at same conditions
https://elog.triumf.ca/TIS/Evaporator_2/464
Start autoramp to 460A on TGHT at 1A/min
Wednesday, March 18, 2020, 20:51
TGHT: 464 A, 7.75 V
Temperature 1328, I won't increase the temperature because there is a chance that the reading is 500 degC off and the target is sitting at 1828 degC instead of 1328 degC
Wednesday, March 18, 2020, 23:17
After ~4 hours at 1317 degC according to the pyrometer:
TGHT = 7.7 V, 457.8 A,
TBHT = 3.9 V, 232.9 A,
IGP1 = 1.16e-6
Commence cooling at -2A/min for TGHT and -1A/min for TBHT
Thursday, March 19, 2020, 15:53
Venting and dismounting.
The coating does not have the quality to be used online, another LP-SIS will be coated and sinter |
|
Monday, March 16, 2020, 13:47, Marla Cervantes, , 40282-5, TARGET BOAT, Done, Conditioning graphite target #1
|
Monday, March 16, 2020, 13:47
Target material characteristics: Graphite cast of 0.965g/cm3, 287 D-shaped discs, disc area 0.969cm2, total mass of 9.972g, length 10.657cm.
The target material is loaded in a graphite cartridge.
The graphite cartridge is placed in a tantalum boat previously coated with TaC,
the Ta boat was wrapped with two used Ta heat shields.
The system is currently pumping down.
Tuesday, March 17, 2020, 08:11
IGP1 = 3.18e-7 Torr
Current will be increased manually to 10 A, and then it will be autoramp to 500 A
During the input of the 10 A there was no anomaly with the pressure and the autoramp was set to:
1 A each 10 s with a good vacuum of 3e-2 Torr and a bad vacuum 5e-2 Torr
Tuesday, March 17, 2020, 09:03
After 30 min:
TGHT: 98.1 A, 1.48 V (the voltage is increasing)
IGP1 = 3e-4 Torr
The autoramp is set to 2 A each 10 s to 500 A
Tuesday, March 17, 2020, 09:52
At 500 A the temperature was ~1243 C
So, the autoramp was re started 2 A each 10 s to 520 A
Tuesday, March 17, 2020, 09:56
TGHT= 510 A, 9.18 V
IGP1= 8.2e-5 Torr
Pressure decreasing.
Temperature register in iR2C: 1272 C
The target will stay at 520 A for 15 min to account for thermal equilibrium, and then the current will be increased to go to 1800 C
Tuesday, March 17, 2020, 10:11
The temperature stayed at 1270 C,
The autoramp is re started: 2 A each 10 s to 600 A
Tuesday, March 17, 2020, 10:24
TGHT: 10.693 V, 588.5 A
IGP1 max 7.4e-5 Torr
Temperature after 3 min at 588.5 A: 1368 C
Tuesday, March 17, 2020, 10:34
The autoramp is re started: 2 A each 10 s to 650 A
Tuesday, March 17, 2020, 10:46
TGHT=11.99 V, 637.6 A
IGP1=5.5e-5 Torr (8e-5 Torr max)
Temperature 1459 C
The current and voltage drop 10 A and 0.3 V respectively when the autoramp is stopped
Tuesday, March 17, 2020, 10:53
The autoramp is re started: 2 A each 10 s to 700A
Tuesday, March 17, 2020, 11:04
TGHT: 13 V, 686.59 A
IGP1: 6.2e-5 Torr (Max 8.7e-5Torr)
Temperature: 1507 C
Tuesday, March 17, 2020, 11:05
The autoramp is re started: 2 A each 10 s to 800A
Tuesday, March 17, 2020, 11:16
TGHT=14.29 V, 759 A
IGP1: 8.6e-5 Torr (Max 1e-4 Torr)
Temperature 1527 C
There is a current discrepancy in EPICs (see current discrepancy picture),
the autoramp stopped at 761 A because EPICS? reads 800 A
Increasing current manually.
Increasing the current manually did not work, because set current is at fake maximum
Tuesday, March 17, 2020, 13:43
The temperature stabilized to 1567 C. The current however was not stable ( look at the CarbonTarget - Max current)
an autoramp is set to -2 A each 10 s to 0A
The set current is going down but not the epics reading current neither the temperature. I assume the current will star going down when the set and the reading current from epics are the same.
Tuesday, March 17, 2020, 13:50
Autoramp was stopped, and current was reduced manually, at around 652 A (set current) the reading current started going down (639.5 A)
Autoramp is set to -2 A each 10s to 0 A
The tantalum boat deformed and the graphite cartridge rim broke |
|
Friday, March 13, 2020, 14:21, Darwin Ortiz Rosales, SiC, 42218-8 , HP-SIS, Done, Conditioning of SiC discs (sintering) (RUSH)
|
Friday, March 13, 2020, 13:52
Total number of foils: 493
Total length packed 17.4 cm
container has 3 Ta heat shields.
No endcaps inserted to facilitate out-gassing
Two TaC coated Ta wire springs inserted at both ends.
Initially to ramp TGHT and TBHT to 50A at 1A/min
Then heat manually to OMEGA ~1400 C , ramping TGHT manually and automatically to reach 530A A (Omega slope set = 0.990)
Then temperature = 1800 (C using slope 1.08 at after 1700C manually and automatically ramp to 700A then TGHT will be tapped up accordingly to reach desired Temp).
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
Evaluation discs not included because no space.
Total Green disc mass measured = 58.78 g
Friday, March 13, 2020, 14:22
Container loaded and pressuring down started without any pump issues.
Friday, March 13, 2020, 23:26
IGP1= 9.1e-07 Torr
Start auto tap at .25A/min to 50A on both TBHT and TGHT
Saturday, March 14, 2020, 07:09
IGP1=6.9e-6 Torr
TGHT = 49.1 A, 0.58V
TBHT = 49.2A, .49V
Continue ramp to 80 A on both heaters at .0.25A/min (good vacuum 3.0 e-04 Torr, bad vaccum 5.0 e-04 Torr
Saturday, March 14, 2020, 08:22
IGP1=6.8 e-05 Torr
Pressure spike TGHT =63.7 A, 0.77 V; TBHT = 60.0 A , 0.62 V
Aborted ramp alow to stabilize (Tapped TBHT to 63.8 A
Saturday, March 14, 2020, 12:16
IGP1= 8.1e-05 Torr
start autoramp at 0.25A/min
Saturday, March 14, 2020, 17:47
IGP1= 2.9e-05 Torr
TGHT= 78.4A, 1.0 V
TBHT = 79.4A, .88 V
manual and automatic tap up to 740A TGHT and 230A TBHT then tap manually to 1800 C (mostly at .075 A/min and increasing to 1A /min as pressure stabilizes)
Sunday, March 15, 2020, 22:40
OMEGA = 1711 C
TGHT = 784,6 A, 12.9V (readback)
TBHT = 232 A, 3.5 V
Tap TGHT to 800 A readback set to 815A
Sunday, March 15, 2020, 23:20
OMEGA =1801 C
TGHT = 799.2 A, 13.3 V, TBHT = 232.9, 3.6V
Start gradual tap-down as temperature rising (1810 C at end of this note)
Sunday, March 15, 2020, 23:49
OMEGAA = 1818 C
TGHT = 769.9A, 12.6 V; TBHT = 232.9 A, 3.6 V
Temperature dropping tapped back up to 799 A on TGHT read back (set to 815 A)
Monday, March 16, 2020, 04:10
OMEGA = 1395 C (not reliable)
TGHT = 799.2 A, 13.2 V
TBHT = 232.9 A, 3.6 V
IGP1 = 2.2 e-06 Torr
Initiate cooling at -1.5 A/min on TGHT to 600A (at 600 A increase cooling rate to 3 A/min ; at 300 A increase cooling to 4 A/min and start TBHT cooling at 1 A/min; at `200 A on TGHT increase cooling to 4 A/min and TBHT 2 A/min)
Monday, March 16, 2020, 09:43
TGHT = 0 A , 0.02V
TBHT = 53,2 A, .56 V (increase cooling to 4 A/min)
IGP1= 1.12e-07 Torr
Monday, March 16, 2020, 10:37
IGP1= 9.5 e -8 Torr
TGHT and TBHT = 0A, 0V
Will unload container
Monday, March 16, 2020, 12:40
Ten discs removed for evaluation (6 from left side and 4 from right side)
two graphite discs placed at each end as well as two TaC coated and sintered end-caps
total length after sintering = 17.8 cm
|
|