CDC tracked cosmics
From GlueXWiki
At 1950V, 50/50 gas:
Tracked cosmics - amplitude spectra for channel 7. In software, threshold = pedestal-mean + n * pedestal-width. n=10. Chamber is horizontal (left) and then tilted at 45 degrees (right).
Old preamp, n=10
New preamp, n=10, ADC range halved (scale doubled)
Zoom in on first pic (old preamp, n=10)
Repeat with n=8 Old preamp, n=8
New preamp, n=8, ADC range halved (scale doubled)