Lemmel H, Jentschel M, Abele H, Lafont F, Guerard B, Sasso C P, Mana G, Massa E
ATI - Atominstitut, TU Wien, Wien, Austria.
ILL - Institut Laue-Langevin, Grenoble, France.
J Appl Crystallogr. 2022 Jul 15;55(Pt 4):870-875. doi: 10.1107/S1600576722006082. eCollection 2022 Aug 1.
The first successful operation of a neutron interferometer with a separate beam-recombining crystal is reported. This result was achieved at the neutron interferometry setup S18 at the ILL in Grenoble by a collaboration between TU Wien, ILL, Grenoble, and INRIM, Torino. While previous interferometers have been machined out of a single-crystal block, in this work two crystals were successfully aligned on nanoradian and picometre scales, as required to obtain neutron interference. As a decisive proof-of-principle demonstration, this opens the door to a new generation of neutron interferometers and exciting applications.
报道了使用单独的光束重组晶体的中子干涉仪的首次成功运行。该成果是由维也纳工业大学、位于格勒诺布尔的劳厄-朗之万研究所（ILL）以及都灵的意大利国家计量研究院（INRIM）合作，在格勒诺布尔ILL的中子干涉测量装置S18上取得的。此前的干涉仪是由单晶块加工而成，而在这项工作中，按照获得中子干涉所需的条件，成功地将两块晶体在纳弧度和皮米尺度上进行了对准。作为一个决定性的原理验证演示，这为新一代中子干涉仪和令人兴奋的应用打开了大门。
