MOSARIX: Multi-crystal spectrometer in the tender x-ray range at SOLEIL synchrotron

Iyas Ismail; Roba Moussaoui; Régis Vacheresse; Tatiana Marchenko; Oksana Travnikova; Renaud Guillemin; Abhishek Verma; Nicolas Velasquez; Dawei Peng; Hugues Ringuenet; Francis Penent; Ralph Püttner; Denis Céolin; Jean-Pascal Rueff; Marc Simon

doi:10.1063/5.0199230

MOSARIX: Multi-crystal spectrometer in the tender x-ray range at SOLEIL synchrotron

Rev Sci Instrum. 2024 May 1;95(5):053103. doi: 10.1063/5.0199230.

Authors

Affiliations

¹ Laboratoire de Chimie Physique-Matière et Rayonnement, CNRS, UMR 7614, Sorbonne Université, 4 Place Jussieu, 75252 Paris, France.
² Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany.
³ Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, F-91192 Gif-sur-Yvette Cedex, France.

PMID: 38758768
DOI: 10.1063/5.0199230

Abstract

We have built and commissioned a novel standalone multi-crystal x-ray spectrometer (MOSARIX) in the von Hamos configuration based on highly annealed pyrolytic graphite crystals. The spectrometer is optimized for the energy range of 2-5 keV, but this range can be extended up to 20 keV by using higher reflection orders. With its nine crystals and a Pilatus detector, MOSARIX achieves exceptional detection efficiency with good resolving power (better than 4000), opening the door to study small cross section phenomena and perform fast in situ measurements. The spectrometer operates under a He atmosphere, which provides a flexible sample environment for measurements in gas, liquid, and solid phases.