MARTINS , R. C.

The application of Superheated Droplet Detectors in dark matter searches by the SIMPLE project uses an acoustic instrumentation sensitive to the shock wave generated by the bubble nucleation of the refrigerant droplets. Previous instrumentation has been unable to distinguish between true nucleation and background noise events in the device, in...

Recent activity in the SIMPLE dark matter search program is described, to include the recent development of a ``heavy'' detector for application in spin-independent searches.

The application of superheated droplet detectors (SDDs) to dark matter searches has so far been confined to the light nuclei refrigerants C2CIF5 and C4F10 (SIMPLE and PICASSO, respectively), with a principle sensitivity to spin-dependent interactions. Given the competitive results of these devices, as a result of their intrinsic insensitivity...