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Wednesday, August 06, 2014, 15:59
Target consists of 400 Ta discs.
Total packed length 4.5cm
Total mass 47.490g.
Re foil inserted.
Wednesday, August 06, 2014, 16:07
Chamber is currently being pumped down.
No Ta heat-shield wrapped (Want to check the temperature without it)
One end-cap inserted on left (wrt ionizer into the page).
TGHT and TBHT will be ramped up to 820A/230A at 2A/min.
Wednesday, August 06, 2014, 18:07
Vacuum at 2.3e-6 Torr. HS water valve opened. No leaks.
Initiated auto-ramping.
Thursday, August 07, 2014, 11:39
Target has been heated for 11hrs at TGHT/TBHT = 820A/230A.
Temperature measured with pyrometer:
Target leg = 1600C + (250 correction for e=0.25) = 1850C
Inside target material = dark, temp can't be measured.
Cooling down at 2A/min for TGHT and 1A/min TBHT.
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