{"paper":{"title":"A compact ultra-clean system for deploying radioactive sources inside the KamLAND detector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-ex"],"primary_cat":"physics.ins-det","authors_text":"A. Gando, A. Kozlov, A. Piepke, A. Suzuki, B.D. Xu, B.E. Berger, B.K. Fujikawa, C.E. Lane, C. Grant, C. Zhang, D.A. Dwyer, D.M. Markoff, G.A. Horton-Smith, G. Gratta, G. Keefer, H. Ikeda, H.J. Karwowski, H.M. Steiner, H. Murayama, H. Watanabe, H. Yoshida, I. Shimizu, J.A. Detwiler, J.G. Learned, J. Maricic, J. Shirai, J. Wallig, K.E. Downum, K. Han, K. Ichimura, K. Inoue, K.M. Heeger, K. Nakamura, K. Tamae, K. Ueshima, L.A. Winslow, M. Batygov, M. Koga, M.P. Decowski, M. Sakai, N. Ybarrolaza, O. Perevozchikov, R.D. McKeown, S. Enomoto, S.J. Freedman, S. Matsuno, S. Yoshida, T. Bloxham, T.I. Banks, T. Miletic, T. Mitsui, T. O'Donnell, W. Tornow, Y. Efremenko, Y. Gando, Y. Kishimoto, Y. Takemoto","submitted_at":"2014-07-01T21:29:42Z","abstract_excerpt":"We describe a compact, ultra-clean device used to deploy radioactive sources along the vertical axis of the KamLAND liquid-scintillator neutrino detector for purposes of calibration. The device worked by paying out and reeling in precise lengths of a hanging, small-gauge wire rope (cable); an assortment of interchangeable radioactive sources could be attached to a weight at the end of the cable. All components exposed to the radiopure liquid scintillator were made of chemically compatible UHV-cleaned materials, primarily stainless steel, in order to avoid contaminating or degrading the scintil"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.0413","kind":"arxiv","version":2},"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"}