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Message ID: 864     Entry time: Monday, March 15, 2021, 16:10
Author: Carla Babcock 
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Subject: TISA emittance meter testing with new FEBIAD source 

Monday, March 15, 2021, 16:09 Target and ion source ramped to 400A/330A this afternoon

Monday, March 15, 2021, 18:53 : Tune through to final RPMs but not optimized. 5e-8 on FC0. Will turn down target and ion source values to TGHT/TBHT 350/250 until tomorrow. BIAS/EZL/COIL/ANODE all off.

 

Tuesday, March 16, 2021, 15:04  Mike is finished with emittance meter controls so ramping everything back up and trying to get beam through.

 

Thursday, March 18, 2021, 18:06 : Vacuum has been rising slowly over the past 20hrs from 9.3e-7 to 9.9e-7. Everything has been up since Tuesday. No beam through emittance meter, though beam can be found on the regular test stand emittance meter. Just discovered that both voltage plates are plugged into positive power supplies so waiting for a controls fix on that then will retry.

 

Friday, March 19, 2021, 17:08 : Finally success. New emittance meter shows same results as the standard test stand emittance rig. Will continue testing new controls next week

Attachment 1: Carla_tune_tracking.docx  401 kB  Uploaded Friday, March 19, 2021, 18:09
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