 Tuesday, October 27, 2020, 10:25, Ferran Boix Pamies, Empty, 44139-7-SK, TARGET BOAT, Done, parasitic target commissioning
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2020-10-27 10:24 setup introduced yesterday. Pumping over night IGP1: 5.7e-7T. Water leak check ok. Performing heating elements check.
2020-10-27 10:43 Heating elements check show low cooling. Ramping up target 1A/15s to 200A.
2020-10-27 11:54 all ok 200A, thermocouples show room temperature on cartridge and heat shield. Ramping up target 2A/10s to 300A. |
Monday, November 02, 2020, 18:32, Ferran Boix Pamies, Empty, 44139-7-SK, TARGET BOAT, Done, HEA heat treatment 
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2020-11-02 6:32: roughing on
2020-11-02 7:21: Turbo on for a while, IGP1:1.8e-5T . water leak check ok.
2020-11-02 7:47: IGP1:1e-5T . Ramping up target heater to 200A, 1A/10s. |
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Wednesday, November 04, 2020, 17:31, Ferran Boix Pamies, Empty, 41882-2, TARGET BOAT, Done, Parasitic target graphite outgassing.
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2020-11-04 17:31: target installed with boat containing graphite container for outgassing. Roughing pump on.
2020-11-04 17:49 turbo on, leaving it pumping over night.
2020-11-05 11:32 leak check ok. Ramping up target to 200A 2A/10s. |
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Thursday, November 05, 2020, 15:13, Ferran Boix Pamies, Empty, 41882-2, TARGET BOAT, Done, cleaning treatment.
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2020-11-05 15:44 empty and naked boat in for heating up system and clean up. Turbo on.
2020-11-06 16:58 IGP1:4e-7T leak check ok. Ramping up target to 500A. 1A/10s.
2020-11-09 12:43 The target was left at 1500degC during the weekend. |
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Tuesday, November 24, 2020, 12:56, Marla Cervantes, , 44139-8-SK , TARGET BOAT, Done, Graphite casting conditioning
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Tuesday, November 24, 2020, 09:23
A batch of 60 discs of 18 mm diameter were loaded in a tantalum tube. The tantalum tube was wrapped with 3 layers of Ta foil for heat shielding
and mounted in the EVAP2. EVAP2 pumped down overnight and Aaron made a leak test this morning (elog 524). |
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Monday, February 01, 2021, 13:57, Darwin Ortiz Rosales, SiC, 40282-4, TARGET BOAT, Done, Sintering of SiC discs for SEM
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Monday, February 01, 2021, 13:52
Ta boat loaded with 20 Disc on either end capped with Ta springs to prevent overexpansion.
discs wrapped Graphite foil and boat wrapped in Ta heat-shields (3 layers). |
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Tuesday, February 09, 2021, 06:48, Aaron Schmidt, , NA, , Done, Ta coating test
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Monday, February 08, 2021, 17:00: Installed brackets w/ Ta wire and a small piece of Re to test voltage drop.
Rough down, TP on. Waterlines open.
Tuesday, February 09, 2021, 06:44: Vacuum @ 8.63e-07T. |
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Thursday, February 11, 2021, 10:57, Marla Cervantes, , NA, , Done, Re coating Test 1
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Thursday, February 10, 2021, 12:00
Objective: Heat a Re wire to evaporate it and deposit a layer of Re on the inner surface of a Ta tube.
A Re wire of 1mm diameter was clamped with Cu brackets in EVAP2, the wire is partially enclosed in a Ta tube. EVAP2 pumping down |
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Saturday, February 13, 2021, 08:14, Darwin Ortiz Rosales, SiC, 41992-1, TARGET BOAT, Done, Sintering of SiC discs for SEM
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Saturday, February 13, 2021, 08:10
Ta boat loaded with 80 discs enclosed in graphite foil in pockets of 20. Sample A at both
ends and sample B in the middle spaced out. Boat wrapped in Ta heat-shields (3 layers). |
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Tuesday, February 23, 2021, 08:59, Marla Cervantes, , NA (Cu-tube), , Done, Re coating Test 2
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Tuesday, February 23, 2021, 08:49
Yesterday a heat shield was washed and when dry it 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 |
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Friday, February 26, 2021, 09:28, Ferran Boix Pamies, Empty, none, , Done, Parasitic target thermal tests
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Tests were performed with external power supply. No target boat or container.
Small power on heating small heating elements on parasitic target attached on isac heatshield with water cooling on.
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Tuesday, March 02, 2021, 11:32, Darwin Ortiz Rosales, TaC, 44691-5, LP-SIS, Done, TaC coating/sintering
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Tuesday, March 02, 2021, 11:26
Ta tube was coated with TaC and wrapped with Ta heat-shields (3 layers)
Initial weight including heat-shields = 433.8 g |
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Friday, March 05, 2021, 10:48, Darwin Ortiz Rosales, TaC, 44691-1, LP-SIS, Done, TaC coating/sintering
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Friday, March 05, 2021, 10:47
Ta tube was coated with TaC and wrapped with Ta heat-shields (3 layers)
Initial weight including heat-shields = 431.0 g |
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Tuesday, March 09, 2021, 11:54, Darwin Ortiz Rosales, TaC, 42464-1, HP-FEBIAD, Done, TaC coating/sintering
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Tuesday, March 09, 2021, 11:54
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 |
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Tuesday, March 16, 2021, 08:29, Darwin Ortiz Rosales, TaC, , TARGET BOAT, Done, sintering of TaC on Caps and springs
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Tuesday, March 16, 2021, 08:28
Each endcap is separated with a disc of graphite foil and rolled into packs of 5 within a foil
envelope in a target boat. |
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Tuesday, March 23, 2021, 11:28, Marla Cervantes, Empty, 44489-6, , Done, Re-coating test 3
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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 |
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Thursday, March 25, 2021, 11:24, Marla Cervantes, Empty, NA (Cu-Tube, , Done, Re-coat test 4
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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
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Friday, March 26, 2021, 13:58, Marla Cervantes, Empty, 44489-6, , Done, Re-coat 1
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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. |
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Friday, March 26, 2021, 16:23, Marla Cervantes, Empty, 44489-7, , Done, Re-coat 2
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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 |
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Sunday, March 28, 2021, 11:24, Marla Cervantes, , NA (Ta-tube), , Done, Re-coat 3
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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 |
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