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

He, Lanhai ; Johny, Melby ; Kierspel, Thomas ; Długołęcki, Karol ; Bari, Sadia ; Boll, Rebecca ; Bromberger, Hubertus ; Coreno, Marcello ; De Fanis, Alberto and Di Fraia, Michele , et al. (2024) In Review of Scientific Instruments 95(11).
Abstract

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... (More)

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.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Review of Scientific Instruments
volume
95
issue
11
article number
113301
pages
10 pages
publisher
American Institute of Physics (AIP)
external identifiers
  • pmid:39540812
  • scopus:85209479294
  • pmid:39540812
ISSN
1089-7623
DOI
10.1063/5.0219086
language
English
LU publication?
yes
id
a0d66605-49a8-4e47-8229-3a8c2ea4ff09
date added to LUP
2024-11-19 16:10:13
date last changed
2025-07-08 05:17:37
@article{a0d66605-49a8-4e47-8229-3a8c2ea4ff09,
  abstract     = {{<p>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.</p>}},
  author       = {{He, Lanhai and Johny, Melby and Kierspel, Thomas and Długołęcki, Karol and Bari, Sadia and Boll, Rebecca and Bromberger, Hubertus and Coreno, Marcello and De Fanis, Alberto and Di Fraia, Michele and Erk, Benjamin and Gisselbrecht, Mathieu and Grychtol, Patrik and Eng-Johnsson, Per and Mazza, Tommaso and Onvlee, Jolijn and Ovcharenko, Yevheniy and Petrovic, Jovana and Rennhack, Nils and Rivas, Daniel E and Rudenko, Artem and Rühl, Eckart and Schwob, Lucas and Simon, Marc and Trinter, Florian and Usenko, Sergey and Wiese, Joss and Meyer, Michael and Trippel, Sebastian and Küpper, Jochen}},
  issn         = {{1089-7623}},
  language     = {{eng}},
  month        = {{11}},
  number       = {{11}},
  publisher    = {{American Institute of Physics (AIP)}},
  series       = {{Review of Scientific Instruments}},
  title        = {{Controlled molecule injector for cold, dense, and pure molecular beams at the European x-ray free-electron laser}},
  url          = {{http://dx.doi.org/10.1063/5.0219086}},
  doi          = {{10.1063/5.0219086}},
  volume       = {{95}},
  year         = {{2024}},
}