Cryogenic Engineering & Neutron Moderator Development
About
The cryogenic engineering & neutron moderator group develops, among other things, cold, very cold and ultra-cold neutron moderators. This includes concept development, detail CAD design, fluid mechanics and structural mechanics simulations, prototype manufacturing and testing in ITE cryo-laboratory. The team is producing and certifying moderators used in neutron sources facilities worldwide. Examples of this are para-hydrogen moderators used at the ESS in Sweden and at SNS in the USA. In addition, in the group regularly doctoral theses are carried out addressing the issues related to moderator development. For this purpose, mobile cryostats are available with which moderators can be operated and measured at different neutron sources. Furthermore, particle image velocity measurements in cryogenic fluids and ortho-para hydrogen in-situ measurements in the liquid phase using Raman spectroscopy can be carried out in our own cryo-laboratory. In addition, superfluid helium can be investigated for the provision of ultra-cold neutrons.
Research Topics
- Neutron moderator development
- Cryogenic Engineering
- Liquid hydrogen applications
- Raman spectroscopy
Members
More information
Patent
Klaus, M. ; Haberstroh, C. ; Bessler, Y.
Verfahren und Vorrichtung zur Stabilisierung einer Gemischzusammensetzung von Ortho- und Parawasserstoff in einem Flüssigwasserstoffreservoir
Restricted: PDF
Book
INTERNATIONAL ATOMIC ENERGY AGENCY, Cold Neutron Sources: Practical Considerations and Modern Research, IAEA-TECDOC-2025, IAEA, Vienna (2023)
IAEA Publication
Report
Santoro, V. ; Kheir, O. A. E. ; Acharya, D. ; et al
HighNESS Conceptual Design Report
arXiv:2309.17333 [physics.ins-det] 346 p (2023) [10.48550/ARXIV.2309.17333]
Book
Brückel, T. ; Gutberlet, T. ; Achten, R. ; et al
Technical Design Report HBS Volume 2 – Target Stations and Moderators
Jülich: Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag, Schriften des Forschungszentrums Jülich Reihe Allgemeines / General 9-2, 118 pp. (2023) [10.34734/FZJ-2023-03723]
OpenAccess: PDF
Journal Article
Garoby, R. ; Vergara, A. ; Danared, H. ; et al
The European Spallation Source Design
Physica scripta 93(1), 014001 - (2018) [10.1088/1402-4896/aa9bff]
OpenAccess: PDF