https://elog.triumf.ca/TIS/Target+Production/146

Has not run through EVAP2.

Friday, September 20, 2024, 14:04: Roughing.

Friday, September 20, 2024, 14:39: TP1B on

Friday, September 20, 2024, 14:45: TP1A on. 

Friday, September 20, 2024, 14:54: TP1A at speed. IG1 on. 

Monday, September 23, 2024, 16:38   Water cooling on. no effect on vacuum pressure. Pressure at 6.0e-7T

Monday, September 23, 2024, 17:00  Ramping TGHT and TBHT to 580/230A at 1A/30s 

Tuesday, September 24, 2024, 08:58 TGHT at 502A. Ramping program preventing further ramp up do to 'good vacuum' restriction at 1e-6T as outgassing is pushing up the chamber pressure. Increased good vacuum parameter to 5e-6T, resuming ramp up to 580A at 1A/30s.

 Tuesday, September 24, 2024, 11:12:   TGHT TBHT at 580/230A. Increasing BIAS/EZL/EE to 30/13/2.5 kV slowly.

Tuesday, September 24, 2024, 14:16:   mass scan at high voltage completed - 2024-09-24--14-11 LP-Ta-24C - scan 1

Tuesday, September 24, 2024, 14:17     background signal recording problem persists, despite channel change conducted with controls team and Keiko - will continue to investigate switching to current integrators

Tuesday, September 24, 2024, 14:17  ramping up HV BIAS to 50kV for conditioning, alongside increased EZL voltage

Tuesday, September 24, 2024, 17:00  BIAS was stable at 50kV for 30min. no noticeable sparking.   

also noted that the mass scan data was saved incorrectly. however, there are multiple screen captures of the mass scan which clearly detail which peaks are present.

HV elements decreased to zero and target was left hot overnight for outgassing and so beam content can be re-evaluated

Wednesday, September 25, 2024, 10:24    increasing BIAS/EZL/EE to 30/13/2.5 kV slowly.

Wednesday, September 25, 2024, 13:25    two mass scans conducted:  2024-09-25--12-39 LP-Ta-24C - scan 2,   2024-09-25--13-22 LP-Ta-24C - scan 3

Wednesday, September 25, 2024, 13:26   ramping down high voltages.