well, I meant no elastic protons. But I stand corrected: you can get
n-delta and wall protons of course. So an ADC cut could be useful for LC1
and RC1, not needed for LC0 and RC0 ? That is actually something I
neglected in my on-shift analysis, where I was more focussed on background
and timing,
any takers ?
-- ________________________________________________________________________________ Tancredi Botto, phone: +1-617-253-9204 mobile: +1-978-490-4124 research scientist MIT/Bates, 21 Manning Av Middleton MA, 01949 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^On Sun, 27 Oct 2002, Adrian T Sindile wrote:
> A few answers to Tancredi's comments (to Chi's message): > > > It is electrons and not protons that fire the cerenkov!! Also, there are > > no elastic protons more forward than TOF #6. I am confused: the cut <5000 > > is on the TDC (right ??) and it actually selects those events for which the > > paddle TDC is a self-timed peak. For those events, presumably, a particle > > went through a paddle scint after hitting the start counter, so they come > > from the target. > > I think I actually saw protons as forward as TOF4 - please look at the ADC > plots in logbook - it is probably because now we are gain-matched a lot > better? Chi was refering to ADCs, not TDCs... (< 5000). > > Adrian >
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