After being down since July 4th weekend, we turned the injector segment back ON today. The photocathode SLSP-5756-4 has since been heated/activated resulting in good QE ~1%, we chose a similar location corresponding to 11500/9250 (vs. 12000/9000). Restore BPM offsets and magnets from #17718 and then centered on lenses up to the PCup.
Next, used IHA1I06 to measure beam size vs. MFG1I04A (and sometimes w/ MFG1I04B). We intended to do this w/ qsUtility however there is some bug associated with a harp motor offset that needs to be resolved.
I talked to Adam in RADCON and explained what I am going to
do. He stated there was no contamination when they (RADCON)
did surveys back in April.
He was ok with my plan. I will wear gloves and dsipose of
old filters in waste can. I will stor removed fan tray on
"RADCON's rack" in the Hall for survey.