Wednesday, October 09, 2024, 11:28   Target loaded, remote power supply added for mass marker, negative channel on pin 5, positive channel on pin 7.

Wednesday, October 09, 2024, 11:50   roughing

 Wednesday, October 09, 2024, 12:51   Turbo pumps TP1A TP1B on

 Thursday, October 10, 2024, 09:27:   Water cooling turned on. no effect on vacuum (2.6e-6T)

Thursday, October 10, 2024, 09:45:   Increasing TGHT TBHT to 150/150A at 1A/30s

Thursday, October 10, 2024, 11:07    TGHT TBHT at 120/120A  .   increasing TGHT TBHT to 580/230 at 1A/10s 

Thursday, October 10, 2024, 12:29   during the current increase, when TBHT was at 230 and TGHT reached ~460, the TBHT current began decreasing. Upon inspection, the TBHT voltage is higher than normal and hitting its limit. It may be that there is another current path. that is, it may be shorted. 

as TGHT increases, TBHT voltage continues to increase.   TGHT voltage is similarly higher than usual, at 6V to deliver 500A.

on another note, the vacuum value has been increasing slowly throughout heating, possibly due to the presence of indium within the mass marker reservoir, or simply because this target has not been hot for some time. Leaving TGHT at 502A for the time being.

Thursday, October 10, 2024, 13:34    Increasing BIAS/EE/EZL to 30/2.5/13 kV. 

Thursday, October 10, 2024, 14:27  beginning mass scan - reservoir at 0 A. (reservoir contains solid Indium)    - mass scan res In 0A

 Thursday, October 10, 2024, 15:19   increased current through reservoir with magnet sitting at mass 115 - noticeable increase in Indium presence in beam beginning at ~2.5A. Brought res current to 3.0A, waited for FC6 current to plateau.- at 5e-10A

Thursday, October 10, 2024, 15:27   mass scan run again

Thursday, October 10, 2024, 15:57   res current decreased to 0A

Thursday, October 10, 2024, 15:57  dropping voltages to 0V 

Thursday, October 10, 2024, 16:12  voltages at 0, decreasing TGHT TBHT at 1A/30s