{"paper":{"title":"First storage of ion beams in the Double Electrostatic Ion-Ring Experiment - DESIREE","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph","physics.ins-det"],"primary_cat":"physics.acc-ph","authors_text":"A. K\\\"allberg, A. Pa\\'al, A. Simonsson, D. Hanstorp, E. B\\\"ackstr\\\"om, F. Hellberg, G. Andler, G. K\\\"allersj\\\"o, H. Cederquist, H. Danared, H. Hartman, H. T. Schmidt, H. Zettergren, J. D. Alexander, J. Weimer, K. G. Rensfelt, K. Hansen, L. Br\\\"annholm, L. Liljeby, M. Bj\\\"orkhage, M. Blom, M. Gatchell, M. H. Stockett, M. Larsson, M. Masuda, P. Halld\\'en, P. L\\\"ofgren, P. Reinhed, R. D. Thomas, S. Leontein, S. Mannervik, S. Ros\\'en, T. Chen, W. D. Geppert","submitted_at":"2018-03-31T07:28:31Z","abstract_excerpt":"We report on the first storage of ion beams in the Double ElectroStatic Ion Ring ExpEriment; DESIREE, at Stockholm University. We have produced beams of atomic carbon anions and small carbon anion molecules (C$_n^-$, $n=1,2,3,4$) in a sputter ion source. The ion beams were accelerated to 10 keV kinetic energy and stored in an electrostatic ion storage ring enclosed in a vacuum chamber at 13 K. For 10 keV C$_2^-$ molecular anions we measure the residual-gas limited beam storage lifetime to be 448 s $\\pm$ 18 s with two independent detector systems. Using the measured storage lifetimes we estimat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.00129","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"}