User name A. Camsonne
Log entry time 21:48:47 on June 07, 2007
Entry number 204603
keyword=Helicity signalI checked if we saw the helicity now it is supposed to be in time, I modified the parameters for to use ROC10 since TS is on right arm as mentioned in http://www.jlab.org/~rom/helicity_podd.html :
THaApparatus* BEAM = new THaIdealBeam("Beam","Simple ideal beamline"); THaHelicityDet *hright = new THaHelicityDet("HR","Beam helicity R-arm"); hright->SetState (0, 0, -1, 1, 0); // In time; no delay; sign -1; right arm; no redunduncy hright->SetROC (1,10, 0, 3, 0, 4); // "Right arm" is ROC 10 BEAM->AddDetector(hright); gHaApps->Add( BEAM );
The helicity signal seems to be there, I also have one ADC channel on
ROC3 ( I have to replug the others they seem to have been unplugged )
which put helicity into ADC. One can see the correlation between ADC and
helicity in the next plots. I need to double check ADC signal since
helicity negative is a bit noisy, but helicity signal is there on both
ADC and TS.
A copy of this log entry has been emailed to: gilman@jlab.org,rom@jlab.org,ipom@jlab.org
Figure 1
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