Friday, December 16, 2016, 14:08
Target consists of 470 discs.
Total packed length 3.4cm [exactly 7.8cm space on both sides]
Total mass 45.9091g [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
3x Ta Heat shields.
LP-FEBIAD container with large center block.
No endcaps inserted, no Rh foil inserted.
Chamber currently pumping down.
TBHT will be ramped up to 230A at 1.0A/min.
TGHT will be ramped up to 350A at 2.0A/min.
Final desired temperature = 1900C
Friday, December 16, 2016, 14:32
HS water valves opened, no leaks detected
Tapped up manually to 35A
Vacuum stable, IGP1 = 2.1e-6 Torr
Initiating auto-ramp.
OMEGA slope = 0.98
Monday, December 19, 2016, 11:52
Tapped up manually to ~1900C [see attached excel for details on data collected - interesting temperature fluctuations]
Will remain at max setpoints for min 4hrs then auto-cool
Monday, December 19, 2016, 15:20
Target has remained at max setpoints for just over 4hrs
TGHT = 520A, 8.67V
OMEGA = 1820C
IGP1 = 5.2e-7 Torr
Initiating auto-cool at 2.0A/min and 1.0A/min for the TGHT and TBHT respectively.
Tuesday, December 20, 2016, 11:52
Vented in air and opened up this morning.
Looks like the windows was coated in evap2, unsure if this was missed and coated before conditioning target or if this is from materials coming out during conditioning process...
Target looks good.
Endcaps inserted but not expanded.
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