Measurements of Induced Charge Profile in RPC With Submilli-Strips

It is necessary to understand the spread and spatial distribution of charge induced on readout strips or pad in RPC to utilize it for a tracking/imaging device. We have measured the profile of induced charge on submilli-size strips for cosmic ray events. The spatial spread of the charge was measured to be about 10 mm in the configuration of our study. The result was verified measuring the lateral size of the streamer using the associated optical images.