struct dMvddNdEtaPar { float AvgMip; /* AVeraGe signal of a Minimum Ionizing Particle at normal incidence angle in chan. This should be about 32chan, but it might be necessary to adjust this parameter upwards a little since the average energy loss should be greater than the average for a mip. The value is calculated from the scale parameters given in dMvdPar table. */ short nBunch; /* Used to control the number of channels which are grouped together in the dN/dEta calculation */ float tooClose;/* parameter which prevents the calculation of dN/deta from a pad plane when the calculated vertex is too close to the pad plane. */ };