CAMEA ESS - The Continuous Angle Multi-Energy Analysis Indirect Geometry Spectrometer for the European Spallation Source
P. G. Freeman, J. O. Birk, M. Mark\'o, M. Bertelsen, J. Larsen, N. B., Christensen, K. Lefmann, J. Jacobsen, Ch. Niedermayer, F. Juranyi, and H. M., Ronnow
TL;DR
CAMEA ESS is an innovative neutron spectrometer designed for the European Spallation Source, utilizing multiple concentric analyser arcs to enhance detection efficiency and enable detailed energy analysis for advanced scientific research.
Contribution
The paper introduces the CAMEA ESS spectrometer concept, featuring ten concentric analyser arcs and prismatic analysis to significantly improve neutron detection and energy resolution.
Findings
High detection efficiency in horizontal scattering plane
Use of ten concentric analyser arcs for energy analysis
Potential to increase to 30 final energies with prismatic analysis
Abstract
The CAMEA ESS neutron spectrometer is designed to achieve a high detection efficiency in the horizontal scattering plane, and to maximize the use of the long pulse European Spallation Source. It is an indirect geometry time-of-flight spectrometer that uses crystal analysers to determine the final energy of neutrons scattered from the sample. Unlike other indirect gemeotry spectrometers CAMEA will use ten concentric arcs of analysers to analyse scattered neutrons at ten different final energies, which can be increased to 30 final energies by use of prismatic analysis. In this report we will outline the CAMEA instrument concept, the large performance gain, and the potential scientific advancements that can be made with this instrument.
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