{"paper":{"title":"Alpha-decay-correlated mass measurement of 206,207Ra using an $\\alpha$-TOF detector equipped MRTOF-MS system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Takamine, D. Kaji, D. Nagae, D. S. Hou, H. Haba, H. Ishiyama, H. Miyatake, H. Wollnik, J. Liu, J. Y. Moon, K. Morimoto, K. Morita, M. Rosenbusch, M. Wada, P. Brionnet, P Schury, S. D. Chen, S. Iimura, S. Ishizawa, S. Kimura, S. X. Ya, T. Hashimoto, T. Niwase, T. Tanaka, W. Xian, Y. Hirayama, Y. Ito, Y. X. Watanabe","submitted_at":"2021-08-13T13:55:03Z","abstract_excerpt":"The atomic masses of the isotopes $^{206,207}$Ra have been measured via decay-correlated mass spectroscopy using a multi-reflection time-of-flight mass spectrograph equipped with an $\\alpha$-TOF detector. The Ra isotopes were produced as fusion-evaporation products in the $^{51}$V+$^{159}$Tb reaction system and delivered by the gas-filled recoil ion separator GARIS-II at RIKEN. The $\\alpha$-TOF detector provides for high-accuracy mass measurements by correlating time-of-flight signals with subsequent $\\alpha$-decay events. The masses of $^{206}$Ra and $^{207g,m}$Ra were directly measured using"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.06245","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2108.06245/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}