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  Evaporator_2, Page 34 of 34  Not logged in ELOG logo
Entry  Monday, March 01, 2021, 13:58, Aaron Schmidt, , , , , Flex - line HS installed 
Flex-Line HS had been fully scrubbed out earlier. All gaskets replaced.
Empty. Quick check for leaks.
Monday, March 01, 2021, 13:57: Roughing.
Entry  Tuesday, March 23, 2021, 08:07, Aaron Schmidt, , , , , Re - Ta test. Leak check. 
 Modified HS installed with new brackets as per Marla.
Tuesday, March 23, 2021, 08:02: Vacuum @ 3.64e-07T. Waterlines opened.
Tuesday, March 23, 2021, 08:06: Vacuum @ 3.60e-07T. Stable.
Entry  Tuesday, March 23, 2021, 11:28, Marla Cervantes, Empty, 44489-6, , Done, Re-coating test 3 
Objective: Coating the inner surface of a short tantalum boat with rhenium.
Result:

    The wire snnaped around 376 W (53 A, and 7.09 V) and 2170 °C (measured with filament pyrometer)
    The tube does not
Entry  Thursday, March 25, 2021, 07:57, Aaron Schmidt, , , , , Re - Ta test. Leak check. 
Thursday, March 25, 2021, 07:55: Vacuum @ 5.12e-07T. Waterlines opened.
Thursday, March 25, 2021, 07:55: Vacuum @ 5.09e-07T. Stable.
Entry  Thursday, March 25, 2021, 11:24, Marla Cervantes, Empty, NA (Cu-Tube, , Done, Re-coat test 4 
Objective: Coating the inner surface of a short tantalum tube with rhenium.
Result:

    The wire snnaped around 376 W (53 A, and 7.09 V) and 2170 °C (measured with filament pyrometer)
    The tube is coated

Entry  Friday, March 26, 2021, 13:58, Marla Cervantes, Empty, 44489-6, , Done, Re-coat 1 
Friday, March 26, 2021, 13:55
Yesterday a heat shield was installed in the EVAP2.
A 1mm thick rhenium wire was held within two copper brackets to pass    through a Cu tube with the intention of coating its inside face.
Entry  Friday, March 26, 2021, 16:23, Marla Cervantes, Empty, 44489-7, , Done, Re-coat 2 
Objective: Coating the inner surface of a tantalum tube to make a destructive test and use a reference for the tantalum boats coatings
Results: 

Sunday, March 27, 2021, 11:23
Entry  Sunday, March 28, 2021, 11:24, Marla Cervantes, , NA (Ta-tube), , Done, Re-coat 3 
Objective: Coating the inner surface of a tantalum tube to make a destructive test and use a reference for the tantalum boats coatings
Results: The tube was coated

Sunday, March 28, 2021, 11:23
Entry  Tuesday, March 30, 2021, 19:49, Ferran Boix Pamies, Empty, 44139-7-SK , , Done, Parasitic target thermal tests 20210403_174815.jpg20210403_183102.jpg
 2021-03-30 7:48 Target loaded with parasitic target only. No container. Leaving under vacuum over night.
 2021-03-31 13:43 Leak check performed. Water on. Need to vent system, electric connection disconnected.
 2021-03-31 15:02 First test successfully finished. Venting to introduce container with radiating heating gun.
Entry  Tuesday, April 13, 2021, 10:44, Marla Cervantes, Empty, NA (Ta- tube Eagle Alloys), , Done, Re-coat 4 voltage-increment-Re-coating.JPG
 Tuesday, April 13, 2021, 09:51
IGP1 = 2.5e-7 Torr

Tuesday, April 13, 2021, 10:17 
Entry  Wednesday, October 13, 2021, 08:35, Aaron Schmidt, , , , Problems, Troubleshoot - Pump down issues. 
Swapped out the Cu gaskets for SS gaskets in the HS top lines. (x2)
Wednesday, October 13, 2021, 08:35: Roughing.
Wednesday, October 13, 2021, 08:50: Turbo pump on. TP Current 6.06-6.10A.
Entry  Thursday, November 25, 2021, 14:00, Aaron Schmidt, , , , , Lower insulator replaced 
 The Helicoil had mostly pulled out of the old one.
Entry  Tuesday, April 12, 2022, 13:41, Aaron Schmidt, , , , Maintenance, New Flex - line HS installed 
Old HS sprang a leak in the copper tubing.  
HS#44378-15
Tuesday, April 12, 2022, 13:35: Roughing. 
Entry  Tuesday, May 10, 2022, 14:43, Aaron Schmidt, , , , Maintenance, Active TP removed / Swap / Slow start TP 
 Tuesday, May 10, 2022, 14:42: TV551 Varian. SN: 202311 (Slightly active from BL1A
- will not cross contaminate. Field only - Tagged) was removed as it was meant to be a temporary fix. Replacement (Refurbished) pump is to be installed.
(Tomorrow - Use slow start function as per vacuum group) 
Entry  Wednesday, June 08, 2022, 10:00, Flora Wu, , boat, , Done, carbonize PAN 10% discs 
Thursday, June 09, 2022, 11:25
Total number of foils: 14 electrospun fiber pellets 
Total weight = 208.3 g
    Reply  Thursday, June 09, 2022, 19:20, John Wong, , boat, , Done, carbonize PAN 10% discs evap2-screenshot_01.PNGevap2-screenshot_02.pngevap2-screenshot_3.pngtemp-current-plot.xlsxevap2-screenshot_04.PNG


    
        
            Flora Wu wrote:
        
        
            
            Thursday, June 09, 2022, 11:25
Entry  Monday, June 20, 2022, 14:52, Darwin Ortiz Rosales, Empty, , , Done, softstart of new TP 
Monday, June 20, 2022, 14:50 
A new Turbo pump was installed this morning and it was soft started.  It has operated correctly and it is ready for use.  Derek O. 
installed it.
Entry  Monday, June 05, 2023, 14:52, Aaron Schmidt, , , , , Swapped turbo pumps. 
 Previous TP would only spin up to 4KRPM. New TP installed.
Monday, June 05, 2023, 14:50: Roughing. 
Monday, June 05, 2023, 15:10: Controller reset. TP on. 
Entry  Wednesday, August 07, 2024, 15:37, Aaron Schmidt, , , , , Turning on EVAP2's turbo pump 
Wednesday, August 07, 2024, 15:36: Roughing. Had initially been roughed & TP started w/ Marla CS, however it timed out. Restarting.
Wednesday, August 07, 2024, 15:37: TP on.
Wednesday, August 07, 2024, 15:46: Tripped at 4 KRPM. Restarted. Up to 5 KRPM.
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