The upgraded cold neutron triple-axis spectrometer FLEXX - enhanced capabilities by new instrumental options

The upgrade of the cold neutron triple axis spectrometer FLEXX, a work-horse instrument for inelastic neutron scattering matching the sample environment capabilities at Helmholtz-Zentrum Berlin, has been successfully accomplished. Experiments confirmed an order of magnitude gain in flux now allowing for intensity demanding options to be fully exploited at FLEXX. In this article, we describe the layout and design of two newly available FLEXX instrument options in detail. The new Heusler analyzer gives an increase of the detected polarized neutron flux due to its superior focusing properties, significantly improving the feasibility of future polarized and neutron resonance spin echo experiments. The MultiFLEXX option provides simultaneous access to large regions in wavevector and energy space for inelastic excitations thus adding mapping capabilities to the spectrometer.

Frick, B
Koza, Mm
Boehm, M
Mutka, H
Published in:
Qens/Wins 2014 - 11Th International Conference On Quasielastic Neutron Scattering And 6Th International Workshop On Inelastic Neutron Spectrometers, 83
Presented at:
11th International Conference on Quasielastic Neutron Scattering / 6th International Workshop on Inelastic Neutron Spectrometers (QENS/WINS), Autrans, FRANCE, MAY 11-16, 2014
Cedex A, E D P Sciences

 Record created 2015-05-29, last modified 2018-09-13

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