Development and Demonstration of a Cylindrical GLANC Code

A numerical approach for determining the current on an wire in an ionizing radiation environment has been developed. This algorithm integrates Maxwell´s equations along with Newton´s Law for the primary electrons and the air chemistry equations for the secondary electrons in a one-dimensional cylindrical retarded time coordinate system. The algorithm is then used to predict the fields and air conductivities near a thin wire illuminated by a transient radiation pulse. It is shown that the air conductivity and radial electric field near the wire are significantly changed when the primary Compton ionization electrons are treated self-consistently as opposed to a prescribed source approach.