{"paper":{"title":"Naturally occurring $^{32}$Si and low-background silicon dark matter detectors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"physics.ins-det","authors_text":"I.J. Arnquist, J.L. Orrell, M. Bliss, R. Bunker, Z.S. Finch","submitted_at":"2017-08-01T00:15:30Z","abstract_excerpt":"The naturally occurring radioisotope $^{32}$Si represents a potentially limiting background in future dark matter direct-detection experiments. We investigate sources of $^{32}$Si and the vectors by which it comes to reside in silicon crystals used for fabrication of radiation detectors. We infer that the $^{32}$Si concentration in commercial single-crystal silicon is likely variable, dependent upon the specific geologic and hydrologic history of the source (or sources) of silicon \"ore\" and the details of the silicon-refinement process. The silicon production industry is large, highly segmente"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.00110","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}