Abstract

We describe the construction status of the ZEPLIN II detector, a 30-kg two-phase discriminating xenon detector to be installed in the Boulby Mine, UK, for the direct detection of WIMP dark matter. Both scintillation and ionization will be measured in order to discriminate the radioactive backgrounds. The ZEPLIN II detector will have very high radioactive-background rejection efficiency. The ZEPLIN program is a collaborative work of TAMU, UKDMC, CNR Torino, and UCLA.

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