Measurement of the bulk radioactive contamination of detector-grade silicon with DAMIC at SNOLAB

We present measurements of bulk radiocontaminants in the high-resistivity silicon CCDs from the DAMIC at SNOLAB experiment. We utilize the exquisite spatial resolution of CCDs to discriminate between \alpha and \beta decays, and to search with high efficiency for the spatially-correlated decays of various radioisotope sequences. Using spatially-correlated \beta decays,... Show more