a1 Department of Physics and Astronomy, University of Hawaii, 2505 Correa Rd., Honolulu, HI 96822, USA. e-mail: firstname.lastname@example.org ;
Preliminary simulation and optimization studies of the Directional Dark Matter Detector and the Directional Neutron Observer are presented. These studies show that the neutron interaction with the gas-target in these detectors is treated correctly by GEANT4 and that by lowering the pressure, the sensitivity to low-mass WIMP candidates is increased. The use of negative ion drift might allow us to search the WIMP mass region suggested by the results of the non-directional experiments DAMA/LIBRA, CoGeNT and CRESST-II.
(Online publication February 15 2012)