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.
HS water valves opened, no leaks detected
Tapped up manually to 35A
Vacuum stable, IGP1 = 6.5e-7 Torr
Initiating auto-ramp.
OMEGA slope = 0.98
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.
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