{"paper":{"title":"High-Resolution Laser Spectroscopy of Long-Lived Plutonium Isotopes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"nucl-ex","authors_text":"A. Voss, B. Cheal, I.D. Moore, I. Pohjalainen, K. Wendt, N. Trautmann, P. Campbell, S. Raeder, T. Kron, V. Sonnenschein","submitted_at":"2017-03-06T12:50:40Z","abstract_excerpt":"Long-lived isotopes of plutonium were studied using two complementary techniques, high-resolution resonance ionisation spectroscopy (HR-RIS) and collinear laser spectroscopy (CLS). Isotope shifts have been measured on the $5f^67s^2\\ ^7F_0 \\rightarrow 5f^56d^27s\\ (J=1)$ and $5f^67s^2\\ ^7F_1 \\rightarrow 5f^67s7p\\ (J=2)$ atomic transitions using the HR-RIS method and the hyperfine factors have been extracted for the odd mass nuclei $^{239,241}$Pu. Collinear laser spectroscopy was performed on the $5f^67s\\ ^8F_{1/2} \\rightarrow J=1/2\\; (27523.61\\text{cm}^{-1})$ ionic transition with the hyperfine "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.01845","kind":"arxiv","version":1},"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"}