Vped Scan 2018 Take 2
Since some boards had been swapped since the last vped scan, the procedure was repeated.
The runs are:
19068022 CAMAC OFF EPD_TUFFmap.txt
19068023 CAMAC ON EPD_TUFFmap.txt
19068024 CAMAC ON Epd_vped0.txt
19068025 CAMAC ON Epd_vped-10.txt
19068026 CAMAC ON Epd_vped10.txt
19068027 CAMAC ON Epd_vped-20.txt
19068028 CAMAC ON Epd_vped20.txt
19068029 CAMAC ON EPD_TUFFmap.txt
The summaries are:
Small Size: drupal.star.bnl.gov/STAR/system/files/VpedScan_small_19068.pdf
Comparison: drupal.star.bnl.gov/STAR/system/files/Vped2files_Compare19068.pdf
Most channels were quite close, however a few failed, such as:
Figure 1: Crate 1 Board 9 - Failed fitting (ch 0 on the right)
I do not know why we seemed to get no value for the different vped settings, other than to believe that perhaps they are zero? I saw this before but didn't point it out. In any case, assuming a linear relationship, I would set this channel to vped = 10. I will try tomorrow. (Note: all the channels seem to be low here...)
Figure 2: Crate 1 Board 9 Ch 19
This one will also be adjusted to Vped = 30
- rjreed's blog
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