Measurement of Curvature, Length, and Spatial Direction of Cloud‐Chamber Tracks

摘要

This method of obtaining information from stereoptic pictures of events in cloud chambers holds several advantages over methods currently in use. It permits the measurement of tracks which make large angles with the plane of the chamber. The equipment required is simple to construct. Errors involved in the measurements are small. About ten minutes are required to measure the energy and angular direction of a helical track. A disadvantage of this method is that the operator must have some experience in order to work effectively.