Extracting hit pulse height from 4 ADC samples

From the Aug 15 workshop (Hugo):
To examine this problem, we looked at 4 pp runs, with increasing BBC raw rates: 
run 8 pp:
/phenix/u/hpereira/data/run8_pp/prdf/EVENTDATA_P00-0000258496-0000.PRDFF
run9:
/phenix/subsys/mutr/hubert/data/EVENTDATA_P00-0000289687-0000.PRDFF  330kHz BBC
/phenix/subsys/mutr/hubert/data/EVENTDATA_P00-0000289702-0000.PRDFF  680kHz BBC
/phenix/subsys/mutr/hubert/data/EVENTDATA_P00-0000279236-0000.PRDFF  900kHz BBC
Run # 258496 289687 289702 279236
BBC rate << 330 kHz 330 kHz 680 kHz ~900 kHz
Raw samples, 0 and 1,2,3, taken at the times indicated by the figure above.

You can click on any of the figures to get the full-size version.

The 'old' method calculated total charge as (q1+q2+q3)/3, and this is compared with 'new', which is (q1+q2+q3)/3 -q0.

The effect of increasing background can be seen by the progressive dimming of the signal band at @0.3 slope.

Same, but require the hit to be on a track, and part of a <6-hit cluster.
old/new. The FWHM increases with increasing BC rate, by 50% from left to right.
xxx In [xxx] change AVERAGE to TEST

old [AVERAGE] new [TEST]
South Station 1:
South Station 1:
South Station 2:
South Station 2:
South Station 3:
South Station 3:
North Station 1:
North Station 1:
North Station 2:
North Station 2:
North Station 3:
North Station 3:
Hubert van Hecke
Last modified: Fri Aug 27 11:23:14 MDT 2010