Int_t Diffusion(Float_t vdrift, Double_t absdriftlength
, Double_t &lRow, Double_t &lCol, Double_t &lTime);
Int_t ExB(Float_t vdrift, Double_t driftlength, Double_t &lRow);
Int_t Diffusion(Float_t vdrift, Double_t absdriftlength
, Double_t &lRow, Double_t &lCol, Double_t &lTime);
Int_t ExB(Float_t vdrift, Double_t driftlength, Double_t &lRow);