Calculated dose rates in halls using CASIM

The first part of this document shows the results of a series of CASIM runs designed to optimize the size of a steel cylinder so as to produce the highest density of stars at any given radius perpendicular to beam direction. For the next set of runs the length of the cylinder is now fixed at three meters and the authors vary the radius. These runs show that a cylinder with a radius of seven centimeters produces the highest dose rate. For the rest of the CASIM runs a cylinder three meters long with a radius of seven centimeters will be used. Using the optimized cylinder they now make runs using geometries more closely representing real experimental hall geometries in an attempt to predict possibly dose rates.