Simulating Neutron Interaction with Cryogenic Dark Matter Detectors*

The Super Cryogenic Dark Matter Search (SuperCDMS) is one of the experiments designed to directly detect dark matter in the form of weakly-interacting massive particles, or ``WIMPS''. The detectors used in this experiment are very sensitive at cryogenic temperatures and are designed to measure the recoil energy imparted to a nucleus in the detector due to collisions with WIMPs. These detectors have already achieved progressive improvements in detection technology; however, it remains unclear how the detectors will register interactions with WIMPS. Here we report on the use of Geant4, a Monte-Carlo framework, to simulate the SuperCDMS setup and its interaction with low-energy neutrons, which should closely approximate the response of the detector to WIMPs. Preliminary results of this simulation indicate a close match of the simulation to already-established physics for neutrons interactions with the materials in the simulation. This matching of the simulation to actual results suggests the future usefulness of the simulation for enabling a calibration of the detector with low-energy neutrons.