Controlled molecule injector for cold, dense, and pure molecular beams at the European x-ray free-electron laser

Lanhai He, Melby Johny, Thomas Kierspel, Karol Długołęcki, Sadia Bari, Rebecca Boll, Hubertus Bromberger, Marcello Coreno, Alberto De Fanis, Michele Di Fraia, Benjamin Erk, Mathieu Gisselbrecht, Patrik Grychtol, Per Eng-Johnsson, Tommaso Mazza, Jolijn Onvlee, Yevheniy Ovcharenko, Jovana Petrovic, Nils Rennhack, Daniel E RivasArtem Rudenko, Eckart Rühl, Lucas Schwob, Marc Simon, Florian Trinter, Sergey Usenko, Joss Wiese, Michael Meyer, Sebastian Trippel, Jochen Küpper

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review

Sammanfattning

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 ≈ 1 K) and dense (ρ ≈ 108 cm-3) molecular beam with pulse durations up to 100 µs generated by a new version of the Even-Lavie valve. Here, a performance overview of the COMO setup is presented along with characterization experiments performed both with an optical laser at the Center for Free-Electron-Laser Science and with x rays at EuXFEL under burst-mode operation. COMO was designed to be attached to different instruments at the EuXFEL, in particular, the SQS and single particles, clusters, and biomolecules (SPB) instruments. This advanced controlled-molecules injection setup enables x-ray free-electron laser studies using highly defined samples with soft and hard x-ray FEL radiation for applications ranging from atomic, molecular, and cluster physics to elementary processes in chemistry and biology.

Originalspråkengelska
Artikelnummer113301
Antal sidor10
TidskriftReview of Scientific Instruments
Volym95
Nummer11
DOI
StatusPublished - 2024 nov. 1

Ämnesklassifikation (UKÄ)

  • Atom- och molekylfysik och optik

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