The purpose of this experiment is to improve the TaC coating mixed with other metals as additives.  The coating solution will be sprayed on Ta metal (0.015" thick, same thickness as the target container).

The samples will be sintered at ~ 1800C.  Once the process is completed, a graphite tube will be inserted into the tube, and then re-heated it up to 1800C. 

This test will show how good the protective layer to prevent the graphite to react with the Ta metal.

Wednesday, November 06, 2013, 17:11

Step #1

Two samples: 

1.  A short tube (same diameter as the usual container)

2.  A cross section of the tube.

Both samples are coated with the TaC matrix spray: 

0.05 moles TaC

0.005 moles of Mo2C, VC, Cr3C2, NbC 

A Rh foil is used as a protective under layer.

see links for pictures:  https://www.dropbox.com/sh/866zsp44nnjeg2z/LqCThu-G_0

The target boat is wrapped with 3 layers of heat shields. 

Samples will be heated up to 600A ~1800C

Chamber is currently being pumped down.

 Friday, November 08, 2013, 17:13

Chamber was pumped down to ~2e-6 Torr.  HS water valve is opened and no leaks were detected. 

TGHT will be ramped up to 580A at 1A/min. 

Monday, November 11, 2013, 08:10  

TGHT has reached to 580A; samples has been heated at that current for over the weekend. 

IGP2 currently at 3.5e-7 Torr.

Auto cooling initiated, ramping rate at -2.0A/min.

 Step 2:

The coated tube is sintered with TaC-matrix.

The graphite tube is inserted in the tube and will be heated back up; see link for details:

https://www.dropbox.com/sh/ji0rhlj0v1tfj1w/cRv1I3VJXE

Chamber is currently pumped down to 1.8e-6 Torr.

TGHT will first be ramped up to 450A (1A/min) to see how the reaction behaves, then a caution ramp up to 600A will take place. 

 Friday, November 15, 2013, 11:04

TGHT reached to 450A.  Cooling down to 0A.  Chamber will be vented for inspection.

 Monday, November 18, 2013, 17:22

Continue Step#2:

The sample looks ok after heating at 450A.

Re-heating it to 500A. 

Chamber has been pumped down to 4.0e-6 Torr. 

Initiated auto-ramping...

 Friday, January 11, 2013, 13:52

TEST#1

A new target boat is coated with TaC and will go through the sintering process at 580A (max).  Ramping rate 5A/20min.

For this test, two thermocouples are installed to measure the temperature of the container.  The QMS is also operating to analyze the gases. 

See attachment#1 for the thermocouple setup.  Note:  No Ta heat shield is used to wrap around the target container.  

See attachment#2 for an example of the QMS and temperature measurements.  

More details about the results later...  

Tuesday, January 22, 2013, 12:19  

The test was successfully complete. 

Short summary of the results: 

1.  A significant difference in the temperature dependence on the heater current could be found when ramping up/down (see attachment #3). 

2.  A difference of 200 C at the highest temperature was between the two thermocouples were measured. 

3.  The measured temperatures are lower than previous measurements with a pyrometer on an empty LP target container (see attachment#3).

4.  RGA spectra show most of the higher mass organic molecules are gone after initial heating at low temperature.  

5.  Above 560A, CO2 shows up again and decreases up to about 680A heating current. (see attachment #4).

6.  After running at high temperature for some time, only H2O & CO and their constituents are left.  (see attachment #5).

Data can be found on my dropbox, folder "RFQ-test\Test#1-ver1.0"

Next:  Re-heating the target

Tuesday, February 12, 2013, 17:10 

TEST#2: Re-heating the target again.  See if it fit the curves. Measuring concentrations of 14N, 16O, 18H2O, 28CO, 32 CH3OH, 40Ar, 44C02. 

Ramping rate 1A/min

Wednesday, March 06, 2013, 18:14 

Test#2 complete.  Data can be found on my dropbox, folder "RFQ-test\Test#2-ver1.0"

Wednesday, March 06, 2013, 18:14 

Test#3:  RFQ target container_version 2.0, thermal test.

Measuring back block temperature & analyze gases.  

Data can be found on my dropbox, folder "RFQ-test\Test#3-ver2.0"

 Monday, March 04, 2013, 17:39

This is the 2nd modified target container for RFQ LPSIS.  The container will be heated up to 650A TGHT and 150A on TBHT.  No Ta-heat shield is being used.  

Heating rate at 1A/min for both TGHT & TBHT.  Once the target is at the currents, TBHT will be further ramped up to 300A.  

Temperatures are being measured by two thermocouples (one on RFQ component and the other on the Cu heat-shield).  

Gases are being analyzed using the RGA. 

Thursday, March 24, 2016, 11:37  

SiC powder (<1um) [10%] was mixed with PAN solution [10%].  Solution was sonicated before e-spinning.  

Fiber mat was binded to graphite foil and heat treated to 250C in air for 1 hour.  

Samples were cut in pieces and rolled up and inserted in Ta target container (TaC coated).  Heat shield was added.

Heat Treatment #1:  

Temperature:  1600C (~350A)

Ramping up TGHT to 300A at 1A/min.  

 Tuesday, March 29, 2016, 11:11

TGHT was maintained at 410A for 1600C for 2 days (see attachment 1).  However at around 22:30 on March 28, there was a sudden increase in voltage.

Temperature raised up to 1750C.  Not sure there was a fault with the control system and it was caused by the Ta-heat shield. (see attachment #2).

 Target was cooled down around 2am on March 29. 

Samples will be removed from the chamber.

John Wong wrote:

John Wong wrote: Laura Lambert wrote: Thursday, September 24, 2015, 08:39 IGP1 = 6.5e-7Torr HS water valves opened, no leaks detected. Tapped up manually to 35A. Waited ~20min. Vacuum stable, IGP1 = 1.5e-6 Torr. Initiated auto-ramp at 0.2A/min and 0.1A/min for the TGHT and TBHT respectively with final setpoints of 250A and 230A. Final temp of 1200C on auto-ramp in order to initiate temperature measurements starting at ~1200C. Thursday, September 24, 2015, 10:24   IGP1 = 8.7e-7 Torr TGHT = 44A, TBHT = 38A Increasing auto-ramp to 0.5A/min and 0.2A/min for the TGHT and TBHT respectively.      Thursday, September 24, 2015, 12:04  A few notes about the target container:The Ta-foil is cut in a full length of the target container, and that also covers up the back block, and the container is wrapped with 3 sheets (see attachment)  The inner tube is coated with TaC, using the "flushing technique" - the coating looks much better; will see how it turns out after the sintering process The target will be heated up to 1900C .  Due to the new wrapping of the Ta-heat shield, the heat distribution may be different.  So the target heater will be ramped up to achieve the desired temperature.   Thursday, September 24, 2015, 18:45   TGHT reached to 250A3.6V, TGHT at 230A and stayed for 1.5 hours.  Temp-L = 1280C, Temp-R = 1360C.   Auto-ramp TGHT to 500A at 1A/min and heat at that current for overnight.  Will take temp reading tomorrow.   Thursday, September 24, 2015, 23:08   TGHT has reached to 500A/8.57V.  Temp-L = 1895C, Temp-R = 2073C. (Not sure why the temperature is real, will need to investigate more to get an absolute temp) Just to be safe… Ramping down TGHT to 425A (according to e-log id 216, Temp-R reached to 1800C with TGHT at 425A/6.84V, but no temp measured for the left at that time) Will check again later. Friday, September 25, 2015, 11:52   The target has been heated at 420A for ~12hours; temp measured ~1900C, slightly higher than the previous target container (W.O#40860-1); the Ta-wraping could affect the heat distribution.   The temperature is also confirmed by using the 2-C digital pyrometer.  The tube inner surface is measured about 1900C, and the ionizer tube is about 2400C.  (see attachment #2). Initiating auto-cooling at 2A/min for TGHT and 1A/min for TBHT. The target will be inspected next Monday  Wednesday, September 30, 2015, 16:01 The target container is fully sintered (see attachment#3)  It is still in the discussion where this container will be used online for the UCx.  Nevertheless, the target contain is ready and it looks pretty good.     Tuesday, October 06, 2015, 15:09 After further discussion, we are going to reheat this container to 420A.  The temperature will be measured with the thermocouple - probe inside the centre of the tube - and the 2C-IR for comparison.  This test is to ensure that the container is actually heated to 1900C before the UCx material can be loaded The chamber has been pumped down to 1.92e-6 Torr.  Heat shield valve is open and no leaks are detected.  Ramping up TBHT to 230A max and TGHT to achieve ~1900C  Wednesday, October 07, 2015, 11:12 Yesterday... TBHT ramped up to 230A and TGHT was at 160A before taking temperature readings.  TGHT from 160A to 423A, IR2C temp reading increases linearly from 1138C to 1900C, whereas the thermocouple readouts are not quite linear, 1040C to 1748C (see attachment) After 18 hours, both temp reader dropped about 45C.  Increased TGHT to 440C, IR2C & thermocouple currently read 1912C & 1762C, respectively.   Wednesday, October 07, 2015, 12:28 Lowered TBHT to 200A and TGHT remained at 440A.  IR2C = 1900C, TypeC = 1745C.  Not much affect from TBHT.  Will increase TBHT back to 230A, then start ramping down TGHT and taking temp readings.   Wednesday, October 07, 2015, 17:49 Stepped down TGHT to 160A and TBHT stayed at 230A.  Cooling down temp is generated.  See attachment.  Notice the overall temp during cooling is lower than that during heating.  TGHT and TBHT will be ramped down to 0A.  Chamber will be vented tomorrow.  More details later...

Thursday, October 08, 2015, 12:01  

Test 2: To heat the target container back to ~440A and measure the temperature with the type C thermocouple (inside the tube, away from the centre block) and compared the temp reading with the 2C-IR.   

Chamber is currently being pump down, vac at 9e-6 Torr.  

Will ramp up TGHT to 160A and TBHT to 230A at 2A/min.

 Thursday, October 08, 2015, 17:01

TGHT is now at 440A, TBHT is constant at 230A - IR2C is reading the same as before, 1910C, but Type C is reading lower at 1770C.  (see attachment)

Will keep the current at 440A overnight. 

 Friday, October 09, 2015, 10:06

TGHT has stayed at 440A, TBHT at 230A for ~18hours.  R-temp dropped slightly from 1910C to 1890C and typeC dropped from 1770 to 1756; otherwise the measurements are reproducible. 

After the group discussion, the online heating curve will be re-calculated based on the temp reading from the IR2C curve. 

Next, the target container will be filled with UCx material and the conditioning current for Evap#1 will only go up to 440A (or at least the required current to reach the end of the re-carbonization step). 

So pay attention to the current when heating the target up in EVAP#1.

Initiate cooling at 2A/min for TGHT and 1A/min TBHT

 Friday, October 09, 2015, 11:35

A note about the voltage that may explain the change in the temperature: 

See attachment #2: 

Left plot = Test #1:

Initially TGHT ramped up to 423A and temp measured at 1900C.  Notice, about an hour later, there was a sudden drop in the voltage, and from thereon, the temp was measured at 1860C.  About 18 hours later, TGHT was increased to 440A to achieve 1910C.  

Right plot = Test #2 
Ramped up TGHT to 440A, temp measured 1910C.  At that constant current over the 6 hours period, the voltage slowly increased, and the temperature slightly dropped to 1895C.  

 Data from thermocouple attached. Raw data and Excel sheet with plot.

Friday, February 26, 2016, 15:44

5 samples were prepared at UBC MTRL using Sol-gel tetraethyl orthosilicate (TEOS) coated on electrospun polyacrylonitrate (PAN). 

Each sample is sandwiched in between graphite foils. 

Sample labeling:

Direct, 0.2358g

Mix, 0.3486g

3X, 0.2273g

5x, 0.2079g

7x, 0.1735g

All samples are loaded in the target boat, stacking on each other.  The Container is wrapped with 2X- Ta shields.

Chamber is pumping down. 

Step#1 Carbonization temperature: 1600C

 Saturday, February 27, 2016, 10:07

Vac at 2.5e-7 torr.

Ramping up TGHT to 300A at 1A/min. monitoring temp.

Saturday, February 27, 2016, 17:38

TGHT at 400A, temp at 1600C. Vac 1.34e-6 Torr.

 Monday, February 29, 2016, 13:04

Samples have been heated at 1635C for almost 2 days. 

Pressure at 2.1e-7 Torr.

Initiated cooling at 2A/min.

 Thursday, March 24, 2016, 11:26

Samples were analyzed for Si using EDX.  Unfortunately, no Si was found.  The vapour pressure of SiO was too high for it to react with PAN to carbonize in a vacuum environment.  

Will look into a different technique.

John Wong wrote:

Laura Lambert wrote: Thursday, September 24, 2015, 08:39 IGP1 = 6.5e-7Torr HS water valves opened, no leaks detected. Tapped up manually to 35A. Waited ~20min. Vacuum stable, IGP1 = 1.5e-6 Torr. Initiated auto-ramp at 0.2A/min and 0.1A/min for the TGHT and TBHT respectively with final setpoints of 250A and 230A. Final temp of 1200C on auto-ramp in order to initiate temperature measurements starting at ~1200C. Thursday, September 24, 2015, 10:24   IGP1 = 8.7e-7 Torr TGHT = 44A, TBHT = 38A Increasing auto-ramp to 0.5A/min and 0.2A/min for the TGHT and TBHT respectively.      Thursday, September 24, 2015, 12:04  A few notes about the target container:The Ta-foil is cut in a full length of the target container, and that also covers up the back block, and the container is wrapped with 3 sheets (see attachment)  The inner tube is coated with TaC, using the "flushing technique" - the coating looks much better; will see how it turns out after the sintering process The target will be heated up to 1900C .  Due to the new wrapping of the Ta-heat shield, the heat distribution may be different.  So the target heater will be ramped up to achieve the desired temperature.   Thursday, September 24, 2015, 18:45   TGHT reached to 250A3.6V, TGHT at 230A and stayed for 1.5 hours.  Temp-L = 1280C, Temp-R = 1360C.   Auto-ramp TGHT to 500A at 1A/min and heat at that current for overnight.  Will take temp reading tomorrow.   Thursday, September 24, 2015, 23:08   TGHT has reached to 500A/8.57V.  Temp-L = 1895C, Temp-R = 2073C. (Not sure why the temperature is real, will need to investigate more to get an absolute temp) Just to be safe… Ramping down TGHT to 425A (according to e-log id 216, Temp-R reached to 1800C with TGHT at 425A/6.84V, but no temp measured for the left at that time) Will check again later. Friday, September 25, 2015, 11:52   The target has been heated at 420A for ~12hours; temp measured ~1900C, slightly higher than the previous target container (W.O#40860-1); the Ta-wraping could affect the heat distribution.   The temperature is also confirmed by using the 2-C digital pyrometer.  The tube inner surface is measured about 1900C, and the ionizer tube is about 2400C.  (see attachment #2). Initiating auto-cooling at 2A/min for TGHT and 1A/min for TBHT. The target will be inspected next Monday  Wednesday, September 30, 2015, 16:01 The target container is fully sintered (see attachment#3)  It is still in the discussion where this container will be used online for the UCx.  Nevertheless, the target contain is ready and it looks pretty good.

 Tuesday, October 06, 2015, 15:09

After further discussion, we are going to reheat this container to 420A.  The temperature will be measured with the thermocouple - probe inside the centre of the tube - and the 2C-IR for comparison. 

This test is to ensure that the container is actually heated to 1900C before the UCx material can be loaded

The chamber has been pumped down to 1.92e-6 Torr.  Heat shield valve is open and no leaks are detected. 

Ramping up TBHT to 230A max and TGHT to achieve ~1900C

 Wednesday, October 07, 2015, 11:12

Yesterday...

TBHT ramped up to 230A and TGHT was at 160A before taking temperature readings. 

TGHT from 160A to 423A, IR2C temp reading increases linearly from 1138C to 1900C, whereas the thermocouple readouts are not quite linear, 1040C to 1748C (see attachment)

After 18 hours, both temp reader dropped about 45C. 

Increased TGHT to 440C, IR2C & thermocouple currently read 1912C & 1762C, respectively. 

 Wednesday, October 07, 2015, 12:28

Lowered TBHT to 200A and TGHT remained at 440A.  IR2C = 1900C, TypeC = 1745C.  Not much affect from TBHT. 

Will increase TBHT back to 230A, then start ramping down TGHT and taking temp readings. 

 Wednesday, October 07, 2015, 17:49

Stepped down TGHT to 160A and TBHT stayed at 230A.  Cooling down temp is generated.  See attachment. 

Notice the overall temp during cooling is lower than that during heating. 

TGHT and TBHT will be ramped down to 0A. 

Chamber will be vented tomorrow. 

More details later...

 Friday, July 31, 2015, 15:39

A Ta tube was coated with TaC.  The inner of the tube was filled with TaC solution and the excess was drained out to give a homogenous coating.  The outer layer of the tube was brushed with TaC. 

The tube is installed in a target boat and wrapped with 3 layers of heat shields.  

Chamber is currently pumped down and the target heater will be ramped up after the long weekend (Tue)

A new window port is installed (see photo).  TGHT will need to be ramped up slowly to make sure the new window can sustain the heat shine from the target - local check on the Evap is required to make sure it's safe to keep ramping up the heater.     

John Wong wrote:

Friday, July 31, 2015, 15:39 A Ta tube was coated with TaC.  The inner of the tube was filled with TaC solution and the excess was drained out to give a homogenous coating.  The outer layer of the tube was brushed with TaC.  The tube is installed in a target boat and wrapped with 3 layers of heat shields.   Chamber is currently pumped down and the target heater will be ramped up after the long weekend (Tue) A new window port is installed (see photo).  TGHT will need to be ramped up slowly to make sure the new window can sustain the heat shine from the target - local check on the Evap is required to make sure it's safe to keep ramping up the heater.

Tuesday, August 04, 2015, 11:26

HS water valves opened, no leaks detected.

IGP1 = 2.2e-7 Torr.

Tapped up manually to 30A.

IGP1 = 2.7e-7 Torr.

Initiating auto-ramp at 0.2A/min with a final value of 350A.

 Tuesday, August 04, 2015, 15:30

IGP1 = 2.8e-6 Torr.

TGHT = 79A.

Increasing ramping rate to 0.5A/min

 Wednesday, August 05, 2015, 15:25

EVAP2 reached 350A this morning, OMEGA = 1414C

Temperature measurements were taken using the FLUKE IR camera of the new window port to be used for the second OMEGA camera.

Measurements were taken of both the Cu seal on the inside of the window and in the centre of the window [the hottest point].

TGHT was ramped up at 2.0A/min from 1414C --> 1800C with auto ramp paused at each measurement reading taken.

See attachment for raw data.

TGHT remained at 500A/1800C for 4hrs and will be cooled down at a rate of 2.0A/min.

 Thursday, August 06, 2015, 15:32

Vented and opened today.

New window port passed inspection, max temperature reached = 32.4C

Coating on tube looks good, partial sintering. Internal sintered better than outside of tube.

See attached photos.

 Tuesday, May 14, 2019, 13:56: Removed old HS w/ flexible lines & swapped in the FEBIAD. (HS waterlines are still purged.) Roughing.

Tuesday, May 14, 2019, 14:06: Turbo pump on. 

Tuesday, May 14, 2019, 14:22: Waterlines opened. Vacuum ok @ 5.34e-05T & dropping. 

Wednesday, May 15, 2019, 06:21

IGP1 = 5.99e-7 Torr,

manually tapping to 40 A.

Autoramp set to 2A/min to TGHT=580 A and TBHT=290 A

Tuesday, May 21, 2019, 08:13

IGP1= 1.43e-7 Torr

TGHT = 580.875 A, 11.22 V

TBHT =  4.45 V, 309.219 A

Temperature 1004 C measured at Ta foil

Ramp-down was initiated with IGP1 = 1.423e-07 Torr

Ramp rate = 2A/min for TGHT and 1/min for TBHT

EVAP2 was vented with air

 Tuesday, May 21, 2019, 14:20 Test FEBIAD removed - AS.

Thursday, October 13, 2016, 18:04

Target loaded into evap2

No heat shields.

Both endcaps inserted and expanded.

Rh foil inserted [when inserting, the Ta rod used to expand the Rh foil inside the ionizer tube snapped off inside the container - this piece was able to be shaken out and is no longer inside]

Chamber pumped down.

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

TGHT will be ramped up to 300A at 2.0A/min.

Final desired temperature = 1900C

Friday, October 14, 2016, 13:28

TGHT and TBHT had reached 300A/ 230A respectively.

Power bump ~10min ago caused evap2 to trip off.

Tapped back up manually to 35A.

Re-initiating auto ramp now.

Laura Lambert wrote:

Thursday, October 13, 2016, 18:04 Target loaded into evap2 No heat shields. Both endcaps inserted and expanded. Rh foil inserted [when inserting, the Ta rod used to expand the Rh foil inside the ionizer tube snapped off inside the container - this piece was able to be shaken out and is no longer inside] Chamber pumped down. HS water valves opened, no leaks detected   Tapped up manually to 35A   Vacuum stable, IGP1 = 5e-7 Torr   Initiating auto-ramp.   OMEGA slope = 0.98 TBHT will be ramped up to 230A at 1.0A/min. TGHT will be ramped up to 300A at 2.0A/min. Final desired temperature = 1900C Friday, October 14, 2016, 13:28 TGHT and TBHT had reached 300A/ 230A respectively. Power bump ~10min ago caused evap2 to trip off. Tapped back up manually to 35A. Re-initiating auto ramp now.

Friday October 14: the target was ramp up to 300A/230A after Laura started it. Then, I cooled down at 6pm before leaving TRIUMF. <br>

Saturday October 15: restated the auto-ramp for Ta#50 in EVAP2. It's currently set to go to 300A/230A.

Aurelia Laxdal wrote:

Laura Lambert wrote: Thursday, October 13, 2016, 18:04 Target loaded into evap2 No heat shields. Both endcaps inserted and expanded. Rh foil inserted [when inserting, the Ta rod used to expand the Rh foil inside the ionizer tube snapped off inside the container - this piece was able to be shaken out and is no longer inside] Chamber pumped down. HS water valves opened, no leaks detected   Tapped up manually to 35A   Vacuum stable, IGP1 = 5e-7 Torr   Initiating auto-ramp.   OMEGA slope = 0.98 TBHT will be ramped up to 230A at 1.0A/min. TGHT will be ramped up to 300A at 2.0A/min. Final desired temperature = 1900C Friday, October 14, 2016, 13:28 TGHT and TBHT had reached 300A/ 230A respectively. Power bump ~10min ago caused evap2 to trip off. Tapped back up manually to 35A. Re-initiating auto ramp now.   Friday October 14: the target was ramp up to 300A/230A after Laura started it. Then, I cooled down at 6pm before leaving TRIUMF. <br> Saturday October 15: restated the auto-ramp for Ta#50 in EVAP2. It's currently set to go to 300A/230A.

 Sunday October 16: the target temperature measurements up to 620A/230A were performed today not on October 15 (yesterday, it was cooled down before reaching 300A/230A). Currently the target is cooling down, to be ready tomorrow morning for the Test Stand. 

Aurelia Laxdal wrote:

Aurelia Laxdal wrote: Laura Lambert wrote: Thursday, October 13, 2016, 18:04 Target loaded into evap2 No heat shields. Both endcaps inserted and expanded. Rh foil inserted [when inserting, the Ta rod used to expand the Rh foil inside the ionizer tube snapped off inside the container - this piece was able to be shaken out and is no longer inside] Chamber pumped down. HS water valves opened, no leaks detected   Tapped up manually to 35A   Vacuum stable, IGP1 = 5e-7 Torr   Initiating auto-ramp.   OMEGA slope = 0.98 TBHT will be ramped up to 230A at 1.0A/min. TGHT will be ramped up to 300A at 2.0A/min. Final desired temperature = 1900C Friday, October 14, 2016, 13:28 TGHT and TBHT had reached 300A/ 230A respectively. Power bump ~10min ago caused evap2 to trip off. Tapped back up manually to 35A. Re-initiating auto ramp now.   Friday October 14: the target was ramp up to 300A/230A after Laura started it. Then, I cooled down at 6pm before leaving TRIUMF. <br> Saturday October 15: restated the auto-ramp for Ta#50 in EVAP2. It's currently set to go to 300A/230A.  Sunday October 16: the target temperature measurements up to 620A/230A were performed today not on October 15 (yesterday, it was cooled down before reaching 300A/230A). Currently the target is cooling down, to be ready tomorrow morning for the Test Stand.

 Monday, October 17, 2016, 09:21

Vented in air and taken out this morning.

Target looks good!

Monday, February 19, 2018, 13:39

LP-FEBIAD loaded into evap2 this morning and pumped down.

Temperature measurements of the ionizer will be done by Fernando for ARIEL development.

Ta foil covering side holes on heat shield so no temp measurements can be done using OMEGA on side ports of evaporator as per request of Fernando

No Ta heat shields on container.

HS water valves opened, no leaks detected.

IGP1 = 2.75e-6 Torr

IGP2 = 1.42e-6 Torr

Tapped up to TGHT = 50A, 0.53V; TBHT = 50A, 0.56V

IGP1 = 2.64e-6 Torr

IGP2 = 1.35e-6 Torr

Initiating auto ramp for TGHT at 2.0A/min up to 350A and TBHT at 1.0A/min up to 210A

 Tuesday, February 20, 2018, 09:15

IGP1 = 6.9e-7 Torr

IGP2 = 3.8e-7 Torr

TGHT = 350A, 5.98V

TBHT = 210A, 3.02V

TGHT and TBHT will be adjusted accordingly for temperature measurements...

 Tuesday, February 27, 2018, 14:55

Temperature measurements done.

Initiated auto-cool.

TGHT cooling at 2.0A/min and TBHT at 1.0A/min.

 Wednesday, February 28, 2018, 10:39

Tuesday, December 19, 2017, 11:40

Vented in air and removed from evap2 today.

 Friday, March 09, 2018, 11:03

LP-FEBIAD loaded into evap2 and pumped down.

Temperature measurements of the ionizer will be done by Fernando for ARIEL development.

Ta foil covering side holes on heat shield so no temp measurements can be done using OMEGA on side ports of evaporator as per request of Fernando

No Ta heat shields on container.

HS water valves opened, no leaks detected.

Tapped up to TGHT = 50 A, 0.54 V; TBHT = 50 A, 0.45 V

IGP1 = 1.8e-6 Torr

IGP2 = 1.4e-6 Torr

Initiating auto ramp for TGHT at 2.0A/min up to 310A and TBHT at 1.0A/min up to 210A

Monday, March 12, 2018, 10:16 

IGP1 = 8.8e-8 Torr

IGP2 = 6.6e-8 Torr

TGHT = 310A, 5.06V

TBHT = 210A, 2.98 V

TGHT and TBHT will be adjusted accordingly for temperature measurements

Tuesday, March 13, 2018, 16:00 

Temperature measurements done.

Initiated auto-cool.

TGHT cooling at 2.0A/min and TBHT at 1.0A/min.

Wednesday, March 14, 2018, 16:03

Removed from evap2.

 Wednesday, November 29, 2017, 16:17

LP-FEBIAD loaded into evap2 today and currently pumping down.

Temperature measurements of the ionizer will be done by Fernando for ARIEL development.

Ta foil covering side holes on heat shield so no temp measurements can be done using OMEGA on side ports of evaporator as per request of Fernando

No Ta heat shields on container.

Final desired temperature of ionizer = 2000C

 Thursday, November 30, 2017, 09:51

HS water valves opened, no leaks detected.

IGP1 = 2.1e-7 Torr

IGP2 = 1.7e-7 Torr

Tapped up to TGHT = 350A, 5.83V; TBHT = 230A, 3.31V

IGP1 = 6.3e-7 Torr

IGP2 = 3.7e-7 Torr

Will check temp measurements in lab after lunch before proceeding...

 Friday, December 01, 2017, 11:04

Temperature measurements done.

Initiated auto-cool this morning.

TGHT cooling at 2.0A/min and TBHT at 1.0A/min.

Monday, December 04, 2017, 11:04

Removed from evap2 this morning.

 Wednesday, December 13, 2017, 10:36

LP-FEBIAD loaded into evap2 this morning and pumped down.

Temperature measurements of the ionizer will be done by Fernando for ARIEL development.

Ta foil covering side holes on heat shield so no temp measurements can be done using OMEGA on side ports of evaporator as per request of Fernando

No Ta heat shields on container.

HS water valves opened, no leaks detected.

IGP1 = 2.3e-6 Torr

IGP2 = 1.7e-6 Torr

Tapped up to TGHT = 50A, 0.30V; TBHT = 50A, 0.59V

IGP1 = 1.8e-6 Torr

IGP2 = 1.4e-6 Torr

Initiating auto ramp for TGHT at 2.0A/min up to 350A and TBHT at 1.0A/min up to 210A

 Wednesday, December 13, 2017, 14:53

IGP1 = 7.6e-7 Torr

IGP2 = 6.4e-7 Torr

TGHT = 350A, 5.85V

TBHT = 210A, 3.02V

TGHT and TBHT will be adjusted accordingly for temperature measurements...

Thursday, December 14, 2017, 09:16 

IGP1 = 2.1e-7 Torr

IGP2 = 1.7e-7 Torr

TGHT = 385A, 6.80V

TBHT = 210A, 3.01V

Tapped up to TGHT = 400A, 7.11V

Stopped for temperature measurements.

Tapped up to TGHT = 450A, 8.20V

 Friday, December 15, 2017, 09:50

IGP1 = 1.2e-7 Torr

IGP2 = 9.6e-8 Torr

TGHT = 350A, 5.82V

TBHT = 210A, 2.94V

Initiating auto-ramp to TGHT = 650A

Monday, December 18, 2017, 10:43

Temperature measurements done.

Initiated auto-cool.

TGHT cooling at 2.0A/min and TBHT at 1.0A/min.

 Tuesday, December 19, 2017, 11:40

Vented in air and removed from evap2 today.

Temperature measurements in progress this week for Ta HP-SIS.

See attachment for the current settings and rampings of the TGHT/TBHT  for the temperature measurements taken on  Jan. 9-10, 2016 .

Note: TBHT PS tripped off on Jan. 9, 2016 (see first page of the attached file) and couldn't turn it ON again over the week-end.