After the implementation of the MainMagnet structure I ran Geant4 with 10k events and calculated the VDC rates
depending on particle type (electron or photon).
The photon rate is the incident rate, it is *not* the VDC signal rate. For that I need to weight the photons with the absorbtion coeff. for Ar-C2H6 (or just simply Argon), which is not done yet.
Results for Front VDC, rates are per 1uA beam current:
(I was using DeltaOmega_x_Luminosity_1nA = 1143.3; // Luminosity*DeltaOmega for 1nA)
1.63 MHz : All electrons hitting the Front VDC
1.59 MHz : Coincidence of GEM,HDC,VDC,TS,CD for electrons
1.24 MHz : Total photon rate hitting the Front VDC
0.59 MHz : Photon rate with E < 1 MeV
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