Friday, March 10, 2017, 17:29
Three B3 pellets are loaded into the container for thermo test.
(see lab book1 Pg 26, 28-30 for more detail about the materials)
Desired temp ~1500C; one long-sheet of Ta foil is used, est 400A.
Auto ramping 0.5A/min to 300A first. Check later...
Saturday, March 11, 2017, 11:58
Increased TGHT from 300A to 350A last night at ramping rate of 0.5A/min.
Tapped up further from 350A to 400A, 6.92V (2.8kW), Temp measured at ~1550C.
Pressure peaked at 1.5e-6 Torr and coming down when ramping TGHT from 350A to 400A. (see attachment1)
Will remain at the current. Continue monitoring..
Monday, March 13, 2017, 01:14
Temp was held at 1550C for about 1.5days. Vac stabilized at 3.08e-7 torr. TGHT 400A/6.94V.
Initiated cooling at 1A/min.
Next, Materials inspection.
Monday, March 13, 2017, 11:24
Target has been at room temp for about 4 hours. Venting chamber.
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