Abstract:
We present two software packages developed to support detector R&D studies for the International Linear Collider.
LCDG4 is a full-detector simulator that provides energy deposits from particles traversing the sensitive volumes of the
detector. It has been extensively used within the American ILC community, providing data for algorithm development
and detector optimization studies. DigiSim models real-life digitization effects, converting the idealized response into
simulated detector readout. It has many useful features to improve the realism in modeling detector response. The
main characteristics of these two complementary packages are discussed.