The aim of this work is to describe method of modeling straw signal using
Garfield++ interface to LTspice. Straw Tube Trackers will be use in the SPD experiment.
When designing such large scale and complex detector it is of extreme importance to run precise
simulations. The physical task of this research is to reliably predict drift time and shape signal,
which is important for further modeling of electronics for SPD Straw Trackers
