The thermal triple-axis-spectrometer EIGER at the continuous spallation source SINQ

Stuhr, U.; Roessli, B.; Gvasaliya, S.; Rønnow, Henrik M.; Filges, U.; Graf, D.; Bollhalder, A.; Hohl, D.; Burge, R.; Schild, M.; Holitzner, L.; Kaegi, C.; Keller, P.; Muehlebach, T.

doi:10.1016/j.nima.2017.02.003

research article

The thermal triple-axis-spectrometer EIGER at the continuous spallation source SINQ

Stuhr, U.

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Roessli, B.

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Gvasaliya, S.

2017

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

EIGER is the new thermal triple-axis-spectrometer at the continuous spallation SINQ at PSI. The shielding of the monochromator consists only of non- or low magnetizable materials, which allows the use of strong magnetic fields with the instrument. This shielding reduces the high energy neutron contamination to a comparable level of thermal spectrometers at reactor sources. The instrument design, the performance and first results of the spectrometer are presented.