BT2015 Analysis meeting

mercredi 17 févr. 2016, 10:30 → 12:25 Europe/Paris

https://vidyoportal.cern.ch/flex.html?roomdirect.html&key=56nCEXSe449N

Andreas has implemented a full GEANT4 simulation of CERN TB setup and tested its digitization.
1) the x,y,z coordinates of hits are as expected
2) the 15 GeV muon energy deposition of 0.095 MeV is slightly larger than 0.087 MeV for a MIP, which may be explained by a relativistic rise in Bethe-Bloch dE/dx forumula.
3) a very low trigger threshold at 10 ADC counts is applied. For a realistic study one has a freedom to take digi's with random probability which reflects the desired S-curve of the trigger efficiency as measured in data (even at MIP level the efficiency was not exactly 100%, may be around 96%, to be confirmed in the study of muon efficiency).
The saturation is implemented now in a simple way: the response is linear until 2000 ADC counts. More realistic parameterization with some variation may be used in the future, or this might also be left  to be implemented by the "user" (to give him more flexibility).
4) Noise at  sigma=1/18 MIP is added.
5) visualized GEANT4 geometry is consistent

Last Friday, on Feb 19, there was an ILD ECAL meeting in LLR, please, see
https://agenda.linearcollider.org/event/6973/
The talks summarize the recent activity on ILD ECAL.

10:30 → 10:50 Testing digitization

Orateur: Andreas Psallidas

Slides Testing_Digitization.pdf