{"paper":{"title":"Controlled molecule injector for cold, dense, and pure molecular beams at the European x-ray free-electron laser","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atm-clus"],"primary_cat":"physics.chem-ph","authors_text":"Alberto De Fanis, Artem Rudenko, Benjamin Erk, Daniel E. Rivas, Eckart R\\\"uhl, Florian Trinter, Hubertus Bromberger, Jochen K\\\"upper, Jolijn Onvlee, Joss Wiese, Jovana Petrovic, Karol D{\\l}ugo{\\l}\\k{e}cki, Lanhai He, Lucas Schwob, Marcello Coreno, Marc Simon, Mathieu Gisselbrecht, Melby Johny, Michael Meyer, Michele Di Fraia, Nils Rennhack, Patrik Grychtol, Per Eng-Johnsson, Rebecca Boll, Sadia Bari, Sebastian Trippel, Sergey Usenko, Thomas Kierspel, Tommaso Mazza, Yevheniy Ovcharenko","submitted_at":"2024-05-10T09:20:09Z","abstract_excerpt":"A permanently available molecular-beam injection setup for controlled molecules (COMO) was installed and commissioned at the small quantum systems (SQS) instrument at the European x-ray free-electron laser (EuXFEL). A $b$-type electrostatic deflector allows for pure state-, size-, and isomer-selected samples of polar molecules and clusters. The source provides a rotationally cold ($T\\approx1$~K) and dense ($\\rho\\approx10^8$~cm$^{-3}$) molecular beam with pulse durations up to 100~\\us generated by a new version of the Even-Lavie valve. Here, a performance overview of the COMO setup is presented"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.06344","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2405.06344/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"}