Tuesday, February 10, 2015, 14:00

Container loaded into EVAP2 at noon.

no heat shields.

Chamber currently being pumped down.

TGHT/ TBHT will be ramped up to 580A/ 230A, tapped up manually.

 Tuesday, February 10, 2015, 14:39

HS water valves opened, no leaks detected.

Tapping up manually / recording data in excel

 Wednesday, February 11, 2015, 11:24

Reached max set points yesterday early evening.

Tapped down manually this a.m.

Will vent and open this afternoon.

 Wednesday, February 11, 2015, 15:54

Took out this afternoon.

container looks good.

graphite insert removed/ inspected - not much change, slightly lighter in colour.

[see attachments for graphs/ table]

 Wednesday, December 16, 2015, 10:09

Target consists of 505 discs.

Total packed length 3.4cm.

*same parameters at Ta#46*

Total mass of target materials 53.9381g [4 packs of 20 with Ta wire + 425 single discs].

3 x Ta Heat shields.

No Re foil inserted.

No endcaps inserted.

Chamber pumped down overnight.

IGP1 = 5.1e-7 Torr.

Tapped up manually to 35A.

IGP1 = 5.2e-7 Torr.

Vacuum stable, initiating auto-ramp.

TBHT will be ramped up to 230A at 1.0A/min.

TGHT will be ramped up to 1800C, auto ramp to 600A at 2.0A/min [estimated final value of 720A according to elog ID 239]

 Wednesday, December 16, 2015, 15:08

TBHT reached max setpoint of 230A, 3.3V

TGHT = 600A, 8.9V

IGP1 = 1.1e-6 Torr.

OMEGA = 1543C

Increasing final setpoint of TGHT to 700A and re-initiating auto-ramp.

 Wednesday, December 16, 2015, 16:02

TGHT = 700A, 10.6V

IGP1 = 2.1e-6 Torr.

OMEGA = 1740C

Tapping up manually to 1800C.

 Wednesday, December 16, 2015, 16:28

TGHT = 730A, 11.2V

Vacuum is coming down from IGP1 = 2.6e-6 Torr.

OMEGA = 1800C

Will condition the target at 1800C overnight and ramp down in the morning.

 Thursday, December 17, 2015, 09:31

OMEGA = 1802C on right side

Temp on leg of left side = 2150C, the hottest point - measured with the Mikron pyrometer.

 Friday, December 18, 2015, 08:53

Evap2 remained at 1800C for ~26.5hrs

Auto-ramped down to TGHT = 300A and TBHT = 90A at a rate of 2.0A/min and 1.0A/min respectively.

Conditioning complete.

TGHT will be ramped up later today for emissivity measurements.

 Monday, January 04, 2016, 11:21

the following was performed by aurelia.

emissivity measurements were taken late december.

evap2 was cooled down and left under vacuum over the xmas break.

currently ramping back up for more emissivity measurements.

 Friday, January 08, 2016, 10:47

Aurelia done measurements.

vented and opened this morning.

 Friday, May 29, 2015, 11:21

Total number of foils: 425 discs

Total mass of materials [incl graphite foils]: 44.41g

Total length packed: 12.3cm

Container has no heat shields.

No endcaps inserted to allow outgassing.

Currently being pumped down.

 Friday, May 29, 2015, 14:13

HS water valves opened, no leaks detected.

IGP1 = 5.4e-6 Torr.

Tapping up manually.

Friday, May 29, 2015, 16:48

Tapped up manually to 20A.

IGP1 = 5.9e-6 Torr.

Initiating auto-ramp at 0.2A/min for the TGHT and 0.1A/min for the TBHT.

Max setpoints set to 580A and 230A for the TGHT and TBHT respectively.

Good Vacuum = 3.0e-5 Torr. Bad Vacuum = 4.0e-5 Torr.

 Monday, June 01, 2015, 09:17

IGP1 = 3.8e-6 Torr.

TGHT = 478A.

TBHT reached max setpoint of 230A.

Increasing ramping rate to 0.5A/min.

 Monday, June 01, 2015, 13:15

Checked window for temperature readings, good visibility, no coating on window. 

IGP1 = 9.1e-6 Torr.

TGHT reached max setpoint of 580A 30min ago.

Stepping up manually to a target temperature of 2000C...

 Monday, June 01, 2015, 16:25

IGP1 = 6.5e-6 Torr.

TGHT = 870A, 17.90V

OMEGA = 1948C

Laura Lambert wrote:

Friday, May 29, 2015, 11:21 Total number of foils: 425 discs Total mass of materials [incl graphite foils]: 44.41g Total length packed: 12.3cm Container has no heat shields. No endcaps inserted to allow outgassing. Currently being pumped down.  Friday, May 29, 2015, 14:13 HS water valves opened, no leaks detected. IGP1 = 5.4e-6 Torr. Tapping up manually. Friday, May 29, 2015, 16:48 Tapped up manually to 20A. IGP1 = 5.9e-6 Torr. Initiating auto-ramp at 0.2A/min for the TGHT and 0.1A/min for the TBHT. Max setpoints set to 580A and 230A for the TGHT and TBHT respectively. Good Vacuum = 3.0e-5 Torr. Bad Vacuum = 4.0e-5 Torr.  Monday, June 01, 2015, 09:17 IGP1 = 3.8e-6 Torr. TGHT = 478A. TBHT reached max setpoint of 230A. Increasing ramping rate to 0.5A/min.  Monday, June 01, 2015, 13:15 Checked window for temperature readings, good visibility, no coating on window.  IGP1 = 9.1e-6 Torr. TGHT reached max setpoint of 580A 30min ago. Stepping up manually to a target temperature of 2000C...  Monday, June 01, 2015, 16:25 IGP1 = 6.5e-6 Torr. TGHT = 870A, 17.90V OMEGA = 1948C

 Monday, June 01, 2015, 17:59

After almost an hour at 870A, the temperature went up from 1948C to 1980C; however temperature around the target container/legs are >2000C.  The voltage on the power supply also went up slightly. 

There is a film coated on the window port and that could affect the temp reading.

To be safe, I lowered the TGHT to 830A/17.38V, temp at 1930C. 

Will keep at 830A for 4 hours and cool down this evening. 

Recommend: Using Ta-heat shields for sintering next time.

 Monday, June 01, 2015, 22:55

TGHT at 830A for almost 5 hours.  

TEMP has gone up to 1994C.  Voltage has also gone up to 19V.  

Cooling down at 2A/min for TGHT and 1A/min for TBHT. 

John Wong wrote:

Laura Lambert wrote:  Friday, May 29, 2015, 11:21 Total number of foils: 425 discs Total mass of materials [incl graphite foils]: 44.41g Total length packed: 12.3cm Container has no heat shields. No endcaps inserted to allow outgassing. Currently being pumped down.  Friday, May 29, 2015, 14:13 HS water valves opened, no leaks detected. IGP1 = 5.4e-6 Torr. Tapping up manually. Friday, May 29, 2015, 16:48 Tapped up manually to 20A. IGP1 = 5.9e-6 Torr. Initiating auto-ramp at 0.2A/min for the TGHT and 0.1A/min for the TBHT. Max setpoints set to 580A and 230A for the TGHT and TBHT respectively. Good Vacuum = 3.0e-5 Torr. Bad Vacuum = 4.0e-5 Torr.  Monday, June 01, 2015, 09:17 IGP1 = 3.8e-6 Torr. TGHT = 478A. TBHT reached max setpoint of 230A. Increasing ramping rate to 0.5A/min.  Monday, June 01, 2015, 13:15 Checked window for temperature readings, good visibility, no coating on window.  IGP1 = 9.1e-6 Torr. TGHT reached max setpoint of 580A 30min ago. Stepping up manually to a target temperature of 2000C...  Monday, June 01, 2015, 16:25 IGP1 = 6.5e-6 Torr. TGHT = 870A, 17.90V OMEGA = 1948C    Monday, June 01, 2015, 17:59 After almost an hour at 870A, the temperature went up from 1948C to 1980C; however temperature around the target container/legs are >2000C.  The voltage on the power supply also went up slightly.  There is a film coated on the window port and that could affect the temp reading. To be safe, I lowered the TGHT to 830A/17.38V, temp at 1930C.  Will keep at 830A for 4 hours and cool down this evening.  Recommend: Using Ta-heat shields for sintering next time.  Monday, June 01, 2015, 22:55 TGHT at 830A for almost 5 hours.   TEMP has gone up to 1994C.  Voltage has also gone up to 19V.   Cooling down at 2A/min for TGHT and 1A/min for TBHT.

 Tuesday, June 02, 2015, 12:37

Chamber was vented and the target was inspected. 

Some stressed marks on the target container can be observed.

The container is also slightly curved but otherwise it's fine. 

The materials packed length has expended outward so 3 discs were removed in order to insert the end caps. 

The packed length is now 16cm.

Two extra graphite foils were inserted on both ends, and previously coated/sintered TaC-end caps are inserted and expended. 

Rn foil is inserted & Std solutions are added. 

Ready for test-stand.

Link to photos for more details:

https://www.dropbox.com/sh/0cra7viqs9ro8q3/AADEGk8goGI4c-uzRQSGwWmxa?dl=0

John Wong wrote:

John Wong wrote: Laura Lambert wrote:  Friday, May 29, 2015, 11:21 Total number of foils: 425 discs Total mass of materials [incl graphite foils]: 44.41g Total length packed: 12.3cm Container has no heat shields. No endcaps inserted to allow outgassing. Currently being pumped down.  Friday, May 29, 2015, 14:13 HS water valves opened, no leaks detected. IGP1 = 5.4e-6 Torr. Tapping up manually. Friday, May 29, 2015, 16:48 Tapped up manually to 20A. IGP1 = 5.9e-6 Torr. Initiating auto-ramp at 0.2A/min for the TGHT and 0.1A/min for the TBHT. Max setpoints set to 580A and 230A for the TGHT and TBHT respectively. Good Vacuum = 3.0e-5 Torr. Bad Vacuum = 4.0e-5 Torr.  Monday, June 01, 2015, 09:17 IGP1 = 3.8e-6 Torr. TGHT = 478A. TBHT reached max setpoint of 230A. Increasing ramping rate to 0.5A/min.  Monday, June 01, 2015, 13:15 Checked window for temperature readings, good visibility, no coating on window.  IGP1 = 9.1e-6 Torr. TGHT reached max setpoint of 580A 30min ago. Stepping up manually to a target temperature of 2000C...  Monday, June 01, 2015, 16:25 IGP1 = 6.5e-6 Torr. TGHT = 870A, 17.90V OMEGA = 1948C    Monday, June 01, 2015, 17:59 After almost an hour at 870A, the temperature went up from 1948C to 1980C; however temperature around the target container/legs are >2000C.  The voltage on the power supply also went up slightly.  There is a film coated on the window port and that could affect the temp reading. To be safe, I lowered the TGHT to 830A/17.38V, temp at 1930C.  Will keep at 830A for 4 hours and cool down this evening.  Recommend: Using Ta-heat shields for sintering next time.  Monday, June 01, 2015, 22:55 TGHT at 830A for almost 5 hours.   TEMP has gone up to 1994C.  Voltage has also gone up to 19V.   Cooling down at 2A/min for TGHT and 1A/min for TBHT.     Tuesday, June 02, 2015, 12:37 Chamber was vented and the target was inspected.  Some stressed marks on the target container can be observed. The container is also slightly curved but otherwise it's fine.  The materials packed length has expended outward so 3 discs were removed in order to insert the end caps.  The packed length is now 16cm. Two extra graphite foils were inserted on both ends, and previously coated/sintered TaC-end caps are inserted and expended.  Rn foil is inserted & Std solutions are added.  Ready for test-stand. Link to photos for more details: https://www.dropbox.com/sh/0cra7viqs9ro8q3/AADEGk8goGI4c-uzRQSGwWmxa?dl=0

 see attachment for data recorded during ZrC conditioning 

Ta#(Spare) LP-SIS target description: 

Total Ta foils = 470 [6x20 packs + 350 single discs]

Foil Thickness = 0.033mm (0.0013") avg Measured. 

Target material batch: Ta 2023-1  Mt'l PO# TR-2022-03028

Target density = 12.515 g/cm3

Target length = 4.97 cm

Total Mass = 62.202 g [Incl foils + Ta wire on 6 packs]

Total mass w/ Target oven =  461g (w/ end caps)

Discs in target are arranged as follows: 1pack / 75 singles / 1pack / 100 singles / 2packs / 100 singles / 1pack / 75 singles / 1pack

Dimpling direction on foils/ Packs.                                                               --> Center <--

End caps installed (Not expanded). No Ta foil heat shield added

Was labelled Ta#67 until the Thin foil target 45447-14 became so.

Thursday, October 05, 2023, 12:44: Roughing. 

Thursday, October 05, 2023, 13:10; TP1 on.  

Thursday, October 05, 2023, 13:11: TGHT / TBHT test. Tap up to 5 / 5 A & back to 0 A. Ok.

Thursday, October 05, 2023, 13:13: Slope Set @ 0.98 

Friday, October 06, 2023, 05:54: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min. 

Friday, October 06, 2023, 11:50: TGHT / TBHT @ 580 / 230 A (568 / 233 A). Auto-ramping TGHT to 630 A @ 2 A per min (640 A w/ offset). Temperature @ 1716 C. Vacuum @ 2.76e-06T.

Friday, October 06, 2023, 12:20: TGHT / TBHT @ 630 / 230 A (618 / 233 A). Auto-ramping TGHT to 650 A @ 2 A per min (640 A w/ offset). Temperature @ 1809 C. Vacuum @ 3.77e-06T.

Friday, October 06, 2023, 12:37: TGHT / TBHT @ 650 / 230 A (638 / 233 A). Auto-ramping TGHT to 665 A @ 2 A per min (650 A w/ offset). Temperature @ 1844 C. 

Friday, October 06, 2023, 12:53: Tapped up to TGHT / TBHT @ 670/ 230 A (657 / 233 A). Temperature @ 1880 C. Vacuum @ 4.94e-06T. 

Friday, October 06, 2023, 12:57: Tapped TGHT to 675.  TGHT / TBHT @ 675 / 230 A (662 / 233 A). Temperature @ 1889 C. Vacuum @ 5.03e-06T. 

Friday, October 06, 2023, 13:00: Tapped TGHT to 682.  TGHT / TBHT @ 682 / 230 A (669 / 233 A). Temperature @ 1901 C. Vacuum @ 5.46e-06T. Desired Temperature reached.

Friday, October 06, 2023, 13:01: Auto-cooling @ 2 A per min.

Tuesday, October 10, 2023, 08:37: PS & TP off. 

 Ta#67 Thin foil LP-SIS target description: 

Total Ta foils = 470 loaded into 2 packs of 235 foils each.

Foil Thickness = 0.010mm (0.0004") avg Measured. 

Target material batch:  https://elog.triumf.ca/TIS/Target+Production/143

Target density = 4.498 g/cm3

Target length = 3.7465 cm

Total Mass = 16.8509 g [Incl foils + Ta wire on 2 packs]

Total mass w/ Target oven =  415g (No end caps)

Discs in target are arranged as follows: 2packs

Dimpling direction on foils/ Packs.                                                               --> Center <--

No Ta foil heat shield added

Monday, July 22, 2024, 14:53: Roughing. 

Halt roughing. Install heat plates.

Monday, July 22, 2024, 15:06: Roughing.

Monday, July 22, 2024, 15:26: TP On.

Monday, July 22, 2024, 15:34: TP Timeout. Restart. 

Monday, July 22, 2024, 15:35: TP at speed (Green) 

Monday, July 22, 2024, 15:36: PS On. TGHT / TBHT to 5/5 A manually. OK. Tap down. 

Tuesday, July 23, 2024, 07:03: Auto-ramping TGHT / TBHT to 120 / 60 A @ 2 A per min. Desired temperature 1900 C.

Tuesday, July 23, 2024, 08:02: OMEGA IR2C Laser off. Slope set to 0.98. 

Tuesday, July 23, 2024, 08:06: Auto-ramping TGHT / TBHT to 300 / 150 A @ 2 A per min. 

Tuesday, July 23, 2024, 09:57: Auto-ramping TGHT / TBHT to 500 / 200 A @ 2 A per min. Temperature @ 1022 C. 

Tuesday, July 23, 2024, 11:59: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min. Temperature @ 1538 C.

Tuesday, July 23, 2024, 12:46: TGHT / TBHT @ 580 / 230 A (569 / 233 A). Temperature @ 1710 C. Vacuum @ 7.44e-06T. 

Tuesday, July 23, 2024, 14:23: TGHT / TBHT @ 580 / 230 A (568 / 233 A). Auto-ramping TGHT to 620 A @ 2 A per min. Temperature @ 1721 C. Vacuum @ 5.06e-06T. 

Tuesday, July 23, 2024, 14:48: TGHT / TBHT @ 620 / 230 A 609 / 233 A). Auto-ramping TGHT to 630 A @ 2 A per min. Temperature @ 1799 C. Vacuum @ 6.76e-06T.  

Tuesday, July 23, 2024, 14:56:  TGHT / TBHT @ 630 / 230 A 618 / 233 A). Temperature @ 1816 C. Vacuum @ 7.14e-06T. Tapping up manually TGHT to get to 1900degC 

Tuesday, July 23, 2024, 15:23:  TGHT / TBHT @ 670 / 230 A 657 / 233 A).  Temperature @ 1890 C. Vacuum @ 9.94e-06T.  Stopping and waiting for 5min.

Tuesday, July 23, 2024, 15:39: Target ramp down 2A/min to 0 both TGHT and TBHT. 

Wednesday, July 24, 2024, 08:50: TP off.

Wednesday, July 24, 2024, 09:18: Venting.

Wednesday, July 24, 2024, 10:28: Target removed. EVAP2 clear. 

 Ta#66 LP-SIS target description: 

Total Ta foils = 470 [6x20 packs + 350 single discs]

Foil Thickness = 0.033mm (0.0013") avg Measured. 

Target material batch: Ta 2023-1  Mt'l PO# TR-2022-03028

Target density = 12.446 g/cm3

Target length = 5.0 cm

Total Mass = 62.230 g [Incl foils + Ta wire on 6 packs]

Total mass w/ Target oven=  g (w/ end caps)

Discs in target are arranged as follows: 1pack / 75 singles / 1pack / 100 singles / 2packs / 100 singles / 1pack / 75 singles / 1pack

Dimpling direction on foils/ Packs.                                                               --> Center <--

End caps installed (Not expanded). No Ta foil heat shield added

Desired temperature 1900C

Wednesday, September 20, 2023, 14:18: Roughing. 

Wednesday, September 20, 2023, 14:35: TP Started. 

Wednesday, September 20, 2023, 14:43: TP on. 

Wednesday, September 20, 2023, 14:45: TGHT / TBHT raised to 5 / 5 A & lowered. Quick check ok. 

Thursday, September 21, 2023, 07:47: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min. Vacuum @ 8.30e-07T.

Thursday, September 21, 2023, 09:54: Slope set to 0.98 

Thursday, September 21, 2023, 13:42: TGHT / TBHT @ 580 / 230 A (568 / 233 A). Auto-ramping TGHT to 630 A @ 2 A per min (640 A w/ offset). Temperature @ 1748 C. Vacuum @ 2.47e-06T.

Thursday, September 21, 2023, 14:10: TGHT / TBHT @ 630 / 230 A (618 / 233 A). Auto-ramping TGHT to 650 A @ 2 A per min (640 A w/ offset). Temperature @ 1843 C. Vacuum @ 3.30e-06T.

Thursday, September 21, 2023, 14:23: TGHT / TBHT @ 650 / 230 A (638 / 233 A). Auto-ramping TGHT to 660 A @ 2 A per min (648 A w/ offset). Temperature @ 1879 C. Vacuum @ 3.77e-06T.

Thursday, September 21, 2023, 14:29: Tapped TGHT to 662.  TGHT / TBHT @ 662 / 230 A (649 / 233 A). Temperature @ 1903 C. Vacuum @ 4.08e-06T. Desired Temperature reached.

Thursday, September 21, 2023, 14:33: Auto-cooling started @ 1 A per min.

Monday, September 25, 2023, 08:09: Turbo pump off. 

Thursday, March 30, 2023, 12:27: 

Ta#65 LP-SIS target description: 

Total Ta foils = 470 [6x20 packs + 350 single discs]

Foil Thickness = 0.033mm (0.0013") avg Measured. 

Target material batch: Ta 2023-1  Mt'l PO# TR-2022-03028

Target density = 18.2685 g/cm3

Target length = 3.40 cm

Total Mass = 62.113 g [Incl foils + Ta wire on 6 packs]

Total mass w/ Target oven= 460.8 g (w/ end caps)

Discs in target are arranged as follows: 1pack / 75 singles / 1pack / 100 singles / 2packs / 100 singles / 1pack / 75 singles / 1pack

Dimpling direction on foils/ Packs.                                                               --> Center <--

End caps installed (Not expanded). No Ta foil heat shield added

Tuesday, May 16, 2023, 10:44: End cap removed post conditioning to remove the rhenium foil. End cap replaced, & weight updated. Length remains the same.

Final desired temperature = 1900C.

Thursday, March 30, 2023, 12:41: RP on. 

Thursday, March 30, 2023, 12:42: Roughing 

Thursday, March 30, 2023, 12:44: OMEGA slope = 0.98. 

Thursday, March 30, 2023, 12:59: TP1 on. 

Thursday, March 30, 2023, 13:00: TP1 off.

Thursday, March 30, 2023, 13:03: Venting. (Steel pair of shields req'd - Install)

Thursday, March 30, 2023, 13:05: Roughing.

Thursday, March 30, 2023, 13:20: TP1 on. 

Thursday, March 30, 2023, 13:29: TP1 trip @ 38 krpm. Quick Reset. Fully "green". OK.

Thursday, March 30, 2023, 13:31: Vacuum @ 5.84e-05T. TGHT / TBHT PS on.

Thursday, March 30, 2023, 13:32: Operation Check. TGHT / TBHT tapped up to 5 / 5 A. Ok. Back to 0A. 

Friday, March 31, 2023, 06:32: Auto-ramping TGHT / TBHT to 500 / 200 A @ 2 A per minute. Vacuum @ 6.52e-07T.

Friday, March 31, 2023, 12:08: TGHT / TBHT @ 500 / 200 A. Vacuum @ 2.24e-06T. Temperature @ 1575 C. Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min

Friday, March 31, 2023, 13:05: TGHT / TBHT @ 580 / 230 A. Vacuum @ 3.69e-06T. Temperature @ 1748 C. Auto-ramping TGHT to 600 @ 2 A per min

Friday, March 31, 2023, 13:27: TGHT / TBHT @ 600 / 230 A. Vacuum @ 3.83e-06T. Temperature @ 1790 C. Auto-ramping TGHT to 620 @ 2 A per min

Friday, March 31, 2023, 13:42: TGHT / TBHT @ 620 / 230 A. Vacuum @ 4.34e-06T. Temperature @ 1820 C. Auto-ramping TGHT to 640 @ 2 A per min    

Friday, March 31, 2023, 13:51: TGHT / TBHT @ 640 / 230 A. Vacuum @ 5.51e-06T. Temperature @ 1858 C. Tap up TGHT to 650 A

Friday, March 31, 2023, 13:54: Vacuum @ 6.03e-06T. Temp @ 1902 C. Tapped up TGHT to 660 manually. Desired temperature reached. 

Friday, March 31, 2023, 13:57: Auto-cooling @ 2 A per minute.

Friday, March 31, 2023, 17:31:

Monday, April 03, 2023, 07:35: PS off. TP off. 

 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. 

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. 

 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. 

 Ta#62 LP-SIS target description:

Total Ta foils = 470 [6x20 packs + 350 single discs]

Foil Thickness = 0.025mm

Target density = 13.96 g/cm3

Target length = 3.4 cm

Total Mass = 47.461 g [Incl foils + Ta wire on 6 packs]

Total mass w/ Target oven= 445 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 (expanded). No Ta foil heat shield added

TBHT will be ramped up to 230A 

TGHT will be ramped up to 600A +

Final desired temperature = 1900C.

OMEGA slope = 0.98.

Thursday, April 08, 2021, 08:24: Roughing.

Thursday, April 08, 2021, 09:06: Vent & check. Roughed to only 20 T. 

Thursday, April 08, 2021, 09:18: Roughing. Loose flange found. Left side wall / upper right. 

Thursday, April 08, 2021, 09:34: TP1 on. 

Thursday, April 08, 2021, 14:41: Vacuum @ 1.65e-06T. Waterline opened.

Thursday, April 08, 2021, 14:46: Vacuum ok. Power on. TGHT / TBHT to 20 / 15 A. Ok.

Thursday, April 08, 2021, 14:50: Auto-ramping TGHT / TBHT to 300 / 100 A @ 2 A per min.

Friday, April 09, 2021, 05:08: Vacuum @ 6.23e-07T. Temp @ 1195 C. Auto-ramping TGHT / TBHT to 400 / 150 A @ 2 A per min.

Friday, April 09, 2021, 06:01: Vacuum @ 9.64e-07T. Temp @ 1447 C. Auto-ramping TGHT / TBHT to 500 / 200 A @ 2 A per min.

Friday, April 09, 2021, 07:23: Vacuum @ 1.92e-06T. Temp @ 1671 C. Auto-ramping TGHT / TBHT to 600 / 230 A @ 2 / 1 A per min.  

Friday, April 09, 2021, 08:40: Vacuum @ 3.96e-06T. Temp @ 1877 C. Auto-ramping TGHT / TBHT to 620 A @ 1 A per min.   

Friday, April 09, 2021, 09:10: Vacuum @ 3.60e-06T. Temp @ 1915 C. Drop TGHT from 620 A to 610 A manually.

TGHT to 613 A manually.

Friday, April 09, 2021, 09:15: Vacuum @ 3.60e-06T. Temp @ 1902 C. TGHT / TBHT @ 613 A / 230 A. Desired temperature reached.

Friday, April 09, 2021, 12:08: Auto-cooling @ 1 A per min initiated. 

Monday, April 12, 2021, 07:23: PS / Turbo pump / roughing pump off. 

Monday, April 12, 2021, 08:03: Vented. 

Ta#61 LP-SIS target description:

Total Ta foils = 470 [6x20 packs + 350 single discs]

Foil Thickness = 0.025mm

Target density =  12.76 g/cm3

Target length = 3.4 cm

Total Mass = 43.388 g [Incl foils + Ta wire on 6 packs]

Total mass w/ Target oven=  464 g (w/ end caps)

Discs in target are arranged as follows: 1pack / 100 singles / 1pack / 75 singles / 2packs / 75 singles / 1pack / 100 singles / 1pack

End caps installed (not yet expanded). No Ta foil heat shield added 

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, October 06, 2020, 14:17: Roughing.

Tuesday, October 06, 2020, 14:36: Turbo pump on.

Tuesday, October 06, 2020, 14:43: Turbo pump not spinning up. Holding at 4 krpm. Will need to vent and Troubleshoot in the am.  

Attempted to run the turbo pump again. Only runs to 4 krpm. Shut down to avoid trip. Vent & remove Flex-line HS. Change all the SS gaskets. Re-install Flex-line HS w/ Ta#61.

Wednesday, October 07, 2020, 09:16: Roughing. 

Wednesday, October 07, 2020, 09:32: Turbo pump on. 

Wednesday, October 07, 2020, 10:05: Multiple attempts made to spin up the turbo pump. TP1 holds at 4 krpm, occasionally to 5 krpm, times out & trips. 

Wednesday, October 07, 2020, 10:08: Shut off TP1 & backing pump. 

Replaced TP1. https://elog.triumf.ca/TIS/Evaporator_2/514

Wednesday, October 07, 2020, 13:45: TP1 off. Soft start function off. Remote start configuration initiated. TP1 on @ 38krpm. OK. 

Wednesday, October 07, 2020, 13:47: Vacuum @ 1.31e-05T.

Wednesday, October 07, 2020, 13:49: Waterlines opened. Vacuum ok @ 1.27e-05T.

Wednesday, October 07, 2020, 13:50: PS switched on. 

Wednesday, October 07, 2020, 15:24: Slope set @ 0.98. Vacuum @ 3.30e-06T.

Wednesday, October 07, 2020, 15:26: TGHT / TBHT on. Manually tap up to 10 / 10 A.

Wednesday, October 07, 2020, 15:28: Auto-ramping TGHT / TBHT to 300 / 150 A @ 2 / 1 A per min. 

Thursday, October 08, 2020, 05:23: Vacuum @ 7.00e-07T. 

Thursday, October 08, 2020, 05:25: Auto-ramping TGHT / TBHT to 450 / 200 A @ 2 / 1 A per min. Temp @ 996 C

Thursday, October 08, 2020, 06:44: Auto-ramping TGHT / TBHT to 550 / 230 A @ 2 / 1 A per min. Temp @ 1426 C

Thursday, October 08, 2020, 07:43: Vacuum @ 3.88e-06T. Temp @ 1685 C. 

Thursday, October 08, 2020, 07:45: Auto-ramping TGHT to 600 A @ 2 A per min.

Thursday, October 08, 2020, 08:42: Auto-ramping TGHT to 630 A @ 2 A per min. Vacuum @ 4.01e-06T. Temp @ 1800 C. 

Thursday, October 08, 2020, 09:07: Auto-ramping TGHT to 645 A @ 2 A per min. Vacuum @ 4.91e-06T. Temp @ 1851 C.  

Thursday, October 08, 2020, 09:19: Auto-ramping TGHT to 655 A @ 2 A per min. Vacuum @ 5.37e-06T. Temp @ 1879 C.   

Thursday, October 08, 2020, 09:28: TGHT @ 650-657 A. Vacuum @ 5.70e-06T. Temp @ 1901 C. Desired temperature reached*

Thursday, October 08, 2020, 09:59: TGHT @ 650-657 A. Vacuum @ 4.64e-06T. Temp @ 1903 C.

Thursday, October 08, 2020, 10:01:  Auto-cooling TGHT / TBHT @ -3 / -2 A per min. 

Thursday, October 08, 2020, 13:57: TP1 / PS off.

Thursday, October 08, 2020, 14:08: Venting. 

Thursday, October 08, 2020, 14:15: Flex-Line HS removed w/ Ta#61. 

 Ta#59 LP-SIS target description:

Total Ta foils = 470 [6x20 packs + 350 single discs]

Foil Thickness = 0.025mm

Target density =  13.74 g/cm3

Target length = 3.4 cm

Total Mass =  46.7314 g [Incl foils + Ta wire on 6 packs]

Total mass w/ Target oven=  436 g (440 g w/ end caps)

Discs in target are arranged as follows: 1pack / 75singles / 1pack / 100singles / 2packs / 100singles / 1pack / 75singles / 1pack

End caps installed (not yet expanded). No Ta heat shield added.

Monday, September 16, 2019, 14:47: Roughing. 

Monday, September 16, 2019, 14:55: Turbo pump on. 

Monday, September 16, 2019, 15:04: Timed out. Open RV1

Monday, September 16, 2019, 15:05: Restart Turbo pump.

Monday, September 16, 2019, 15:14: Attempt stop / restart before timeout. 

Monday, September 16, 2019, 15:21: Turbo pump unable to pass 4krpm. Close for re-attempt tomorrow am.

Tuesday, September 17, 2019, 12:33: Venting. Sort out pump down issues.

TBHT will be ramped up to 230A at 1.0A/min.

TGHT will be ramped up to 650A at 2.0A/min.

Final desired temperature = 1900C.

OMEGA slope = 0.98.

Wednesday, September 18, 2019, 08:50: Omega slope set to 0.98. Power supplies / sources on. vacuum@ 3.34e-05T & dropping. 

Wednesday, September 18, 2019, 08:25: Roughing.

Wednesday, September 18, 2019, 08:34: Turbo pump on. 

Wednesday, September 18, 2019, 10:22: TGHT manually to 40A. Vacuum @ 3.18e-06T.

Wednesday, September 18, 2019, 10:25: Auto-ramping TGHT / TBHT @ 2 / 1 A per min to 350 / 180 A. 

Wednesday, September 18, 2019, 13:43: Vacuum @ 2.30e-06T. Temp @ 1120 deg C. TGHT / TBHT @ 350 / 180 A. 

Wednesday, September 18, 2019, 13:45: Auto-ramping TGHT / TBHT @ 2 / 1 A per min to 550 / 215 A.  

Thursday, September 19, 2019, 06:39: Vacuum @ 8.79e-07T. Temp @ 1722 deg C. TGHT / TBHT @ 550 / 215 A.  

Thursday, September 19, 2019, 06:42: Auto-ramping TGHT / TBHT @ 2 / 1 A per min to 600 / 230 A.   

Thursday, September 19, 2019, 08:18: Auto-ramping TGHT to 630A @ 2 A per min

Step up to desired temp

Thursday, September 19, 2019, 08:49: Vacuum @ 3.22e-06T. TGHT / TBHT 645 (642.7) / 230 (233.44) A. TGHT Voltage= 12.501V. Omega: 1902-1903 deg C. Desired temperature = 1900C reached. 

Thursday, September 19, 2019, 14:17: Vacuum @ 1.45e-06T. Begin auto-cooling TGHT / TBHT @ -1 / -1 A per min. 

Friday, September 20, 2019, 07:59: Turbo pump off. PS / Sources off. 

Friday, September 20, 2019, 08:42: Venting. 

Ta#58 LP-SIS target description:

Total Ta foils = 470 [6x20 packs + 350 single discs]

Foil Thickness = 0.025mm

Target density =  14.16 g/cm3

Target length = 3.4 cm

Total Mass =  48.138 g [Incl foils + Ta wire on 6 packs]

Total mass w/ Target oven=  464 g

Discs in target are arranged as follows: 1pack / 75singles / 1pack / 100singles / 2packs / 100singles / 1pack / 75singles / 1pack

End caps installed (not yet expanded). No Ta heat shield added.

Tuesday, April 23, 2019, 13:54: Roughing. 

Tuesday, April 23, 2019, 14:01: Turbo pump started. 

Tuesday, April 23, 2019, 14:09: Turbo pump at speed. 

TBHT will be ramped up to 230A at 1.0A/min.

TGHT will be ramped up to 650A at 2.0A/min.

Final desired temperature = 1900C.

OMEGA slope = 0.98.

Wednesday, April 24, 2019, 08:38: Power / sources on. 

Wednesday, April 24, 2019, 08:43: TGHT manually to 40A. Vacuum @ 1.87e-07T.

Wednesday, April 24, 2019, 08:45: Auto-ramping TGHT / TBHT @ 2 / 1 A per min to 350 / 180 A. 

Slope found / set. Slope = 0.98. Laser on target, OK.

Wednesday, April 24, 2019, 11:58: Vacuum @ 4.45e-07T. Temp @ 1120 deg C. TGHT / TBHT @ 350 / 180 A.

Wednesday, April 24, 2019, 12:02: Auto-ramping TGHT / TBHT @ 2 / 1 A per min to 650 / 230 A.   

Wednesday, April 24, 2019, 14:27: Halted auto ramping briefly. Set auto-ramping TGHT @ 2 A per min to 630 A .

Wednesday, April 24, 2019, 14:32:  TGHT / TBHT @ 630 (627.9) / 230 (233.3) A.

Vacuum @ 1.15e-06T. Temp @ 1840 deg C. Hold.

Thursday, April 25, 2019, 06:59: Vacuum @ 2.74e-07T. Temp @ 1860 deg C. Hold. 

Thursday, April 25, 2019, 08:05: Auto-ramping TGHT @ 2 A per min to 640 A.

Thursday, April 25, 2019, 08:13: TGHT / TBHT @ 640 (636.9) / 230 (233.16) A.

Vacuum @ 9.96e-07T. Temp @ 1878 deg C.

Thursday, April 25, 2019, 08:15: Auto-ramping TGHT @ 2 A per min to 645 A.  

Thursday, April 25, 2019, 08:20: Auto-ramping TGHT @ 2 A per min to 650 A.   

Thursday, April 25, 2019, 08:24: Vacuum @ 9.96e-07T. TGHT / TBHT 653 (650.3) / 230 (233.16) A. TGHT Voltage= 12.760V. Omega: 1902-1903 deg C. Desired temperature = 1900C reached. 

Thursday, April 25, 2019, 14:00: Begin auto-cooling TGHT / TBHT @ -2 / -1 A per min.

Friday, April 26, 2019, 10:29: Power/heaters off. Turbo pumps off. 

Friday, April 26, 2019, 10:42: Venting. 

 Tuesday, April 17, 2018, 10:20

Target consists of 470 discs.

Total packed length 3.4cm [exactly 7.8cm space on both sides]

Total mass g [Incl foils + Ta wire on 6 packs]

Target consists of 350 single discs and 6x20 packs of Ta discs

Discs in target are arranged as follows: 1pack / 75singles / 1pack / 100singles / 2packs / 100singles / 1pack / 75singles / 1pack

No Heat shields.

No endcaps inserted, no Rh foil inserted.

Chamber pumped down over night.

TGHT will be ramped up to 300A at 1.0A/min.

Aurelia will take over for temp measurements.

Final desired temperature = 1900C

Vacuum limit stop at 3.0e-5 Torr, backing off at 8.0e-5 Torr.

 Thursday, April 19, 2018, 08:39

First round of temperature measurements complete.

Reached a max current of 600A, ~1700C

Cooled down overnight.

Will remove from evap2, insert endcaps, and load back in for more measurements.

 Thursday, April 19, 2018, 12:35

Vented in air and removed from evap2.

See next elog for follow up temperature measurements.

 Ta#56 HP-SIS target description:

Total Ta foils = 470 [6x20 packs + 350 single discs]

Foil Thickness = 0.025mm

Target density = 14.01 g/cm3

Target length = 3.4 cm

Total Mass = 47.374 g [Incl foils + Ta wire on 6 packs]

Total mass w/ Target oven= 1469 g

Discs in target are arranged as follows: 1pack / 75singles / 1pack / 100singles / 2packs / 100singles / 1pack / 75singles / 1pack

Thursday, June 21, 2018, 11:430: Ta#56 loaded into Evap 2 

Thursday, June 21, 2018, 11:37: Roughing

Thursday, June 21, 2018, 11:48 : Turbo pump started.

Thursday, June 21, 2018, 11:56 : Turbo pump at speed

Monday, June 25, 2018, 08:00: Vacuum @ 3.35e-07T

Monday, June 25, 2018, 08:05: TGHT/TBHT Power supplies switched on.

Monday, June 25, 2018, 09:35: Vacuum @ 3.23e-07T. Manually bump up TGHT to 40A.

Slope found / set.

TBHT will be ramped up to 230A at 1.0A/min.

TGHT will be ramped up to 650A at 2.0A/min.

Final desired temperature = 1900C

OMEGA slope = 0.98

Monday, June 25, 2018, 11:41: Auto-ramping TGHT / TBHT @ 2 / 1 A per min to 300 / 180 A 

Monday, June 25, 2018, 13:28: Check: Vacuum @ 1.08e-06T. TGHT / TBHT @ 248 / 110 A

Monday, June 25, 2018, 13:50: TGHT ramping halted momentarily. Limit increased to 350 A, continue ramping.

Monday, June 25, 2018, 14:44: Check: Vacuum @ 1.08e-06T. TGHT / TBHT @ 350 / 180 A. (hold till am)

Omega: 1033 deg C

Tuesday, June 26, 2018, 08:37: Vacuum @ 3.03e-07T. Auto-ramping TGHT / TBHT @ 2 / 1 A per min to 600 / 230 A . Omega: 1010 deg C (approx)

Tuesday, June 26, 2018, 11:25: Vacuum @ 1.34e-06T. TGHT / TBHT @ 248 / 110 A. Omega: 1605 deg C (approx) 

Auto-ramping TGHT  @ 2 A per min to 650 A

Tuesday, June 26, 2018, 12:06: Limited at 608A ? Display still ramping past the auto-ramp limit. 

Tuesday, June 26, 2018, 12:24 : Auto ramp halted. Display brought to 610 A. Readback 603 A

Tuesday, June 26, 2018, 12:41: Voltage limit adjusted to 12.00V. Mnaualy increased TGHT to 620 A. Auto-ramping TGHT  @ 2 A per min to 650 A

Tuesday, June 26, 2018, 12:59: Check: Vacuum @ 1.53e-06T. TGHT / TBHT @ 650 / 230 A. 

Omega: 1747 deg C

Tuesday, June 26, 2018, 15:07: Check: Vacuum @ 9.73e-07T. TGHT / TBHT @ 650 / 230 A. (hold till am)

Omega: 1760 deg C

Wednesday, June 27, 2018, 07:49: Check: Vacuum @ 5.06e-07T. TGHT / TBHT @ 650 / 230 A.

Omega: 1796 deg C. Begin auto-ramping TGHT to 700 A @ 2 A per min with pause at 675 A. Monitor.

Wednesday, June 27, 2018, 08:00: Check: Vacuum @ 5.80e-07T. TGHT / TBHT @ 675 / 230 A.

Omega: 1843 deg C. Begin auto-ramping TGHT to 700 A @ 2 A per min. Monitor.

Wednesday, June 27, 2018, 08:16: Vacuum @ 7.45e-07T. TGHT / TBHT @ 700 / 230 A. Omega: 1890 deg C (approx). 

Wednesday, June 27, 2018, 08:23: Vacuum @ 8.53e-07T. TGHT / TBHT @ 707 / 230 A. TGHT Voltage= 10.783V. Omega: 1906-1913 deg C. Desired temperature = 1900C reached.

Wednesday, June 27, 2018, 13:11: Vacuum @ 6.77e-07T. Omega: 1902-1915 deg C

Wednesday, June 27, 2018, 14:53: Begin auto-cooling TGHT / TBHT @ - 2 / -1 A per min overnight. 

Thursday, June 28, 2018, 07:39: Power supplies off. Turbo pump off.  

Thursday, June 28, 2018, 09:38: Vented. Remove From Evap 2.

 Friday, September 15, 2017, 09:44

Target consists of 470 discs.

Total packed length 3.4cm [exactly 7.8cm space on both sides]

Total mass g [Incl foils + Ta wire on 6 packs]

Target consists of 350 single discs and 6x20 packs of Ta discs

Discs in target are arranged as follows: 1pack / 75singles / 1pack / 100singles / 2packs / 100singles / 1pack / 75singles / 1pack

1 long Ta Heat shield on each side, not incl center block.

No endcaps inserted, no Rh foil inserted.

Loaded into evap2 yesterday.

Chamber pumped down overnight.

TBHT will be ramped up to 230A at 1.0A/min.

TGHT will be ramped up to 650A at 2.0A/min.

Final desired temperature = 1900C

OMEGA slope = 0.98

HS water valves were already open.

Tapped up manually to 40A, vacuum stable.

IGP1 = 1.1e-6 Torr

IGP2 = 7.8e-7 Torr

Initiating auto-ramp.

Vacuum limit stop at 3.0e-5 Torr, backing off at 4.0e-5 Torr.

 Monday, September 18, 2017, 08:38

TGHT = 647A, 10.04V

TBHT = 233A, 3.51V

IGP1 = 4.65e-7 Torr

IGP2 = 3.78e-7 Torr

OMEGA = 1700C

Increasing max setpoint of TGHT to 750A

 Monday, September 18, 2017, 14:49

TGHT = 760A, 11.96V

TBHT = 233A, 3.54V

IGP1 = 8.9e-7 Torr

IGP2 = 8.6e-7 Torr

OMEGA = 1905C

Conditioning process complete.

Initiating auto-cool at 2.0A/min for the TGHT and 1.0A/min for the TBHT.

 Tuesday, September 19, 2017, 10:38

Target was cooled down in sections so Yasser could take some temperature measurements with his thermocouples.

Vented in air and removed from evap2 this morning.

Target looks good.

Endcaps inserted and expanded.

Inserting Rh foil this afternoon.

 Tuesday, September 26, 2017, 10:53

Tapped up manually to 230A over the course of ~35min.

TBHT striptool = 228A, 0.33V

TBHT direct readout = 230.4A, 0.33V

Vacuum good/ stable.

Minor spike to IGP1 = 1.5e-5 Torr ~5min after reached max setpoint of 230A.

IGP1 striptool = 3e-6 Torr

IGP1 direct readout = 3.79e-6 mBar

Initiating auto-cool at 2.0A/min.