CHESS: The future direct geometry spectrometer at the second target station-Reference-Cited by-同舟云学术

CHESS: The future direct geometry spectrometer at the second target station

Published:2022-06-01 Issue:6 Volume:93 Page:065109
ISSN:0034-6748
Container-title:Review of Scientific Instruments
language:en
Short-container-title:Review of Scientific Instruments

Author:

Sala G.¹^ORCID,Mourigal M.²^ORCID,Boone C.¹^ORCID,Butch N. P.³⁴^ORCID,Christianson A. D.⁵,Delaire O.⁶^ORCID,DeSantis A. J.¹^ORCID,Hart C. L.¹^ORCID,Hermann R. P.⁵^ORCID,Huegle T.⁷^ORCID,Kent D. N.¹,Lin J. Y. Y.¹^ORCID,Lumsden M. D.⁸^ORCID,Manley M. E.⁵^ORCID,Quirinale D. G.⁸^ORCID,Stone M. B.⁸^ORCID,Z Y.⁹¹⁰¹¹^ORCID

Affiliation:

1. Spallation Neutron Source, Second Target Station, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

2. School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA

3. NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA

4. Maryland Quantum Materials Center, Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA

5. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

6. Department of Physics, Duke University, Durham, North Carolina 27708, USA

7. Neutron Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

8. Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

9. Department of Nuclear, Plasma, and Radiological Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA

10. Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA

11. Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA

Abstract

CHESS, chopper spectrometer examining small samples, is a planned direct geometry neutron chopper spectrometer designed to detect and analyze weak signals intrinsic to small cross sections (e.g., small mass, small magnetic moments, or neutron absorbing materials) in powders, liquids, and crystals. CHESS is optimized to enable transformative investigations of quantum materials, spin liquids, thermoelectrics, battery materials, and liquids. The broad dynamic range of the instrument is also well suited to study relaxation processes and excitations in soft and biological matter. The 15 Hz repetition rate of the Second Target Station at the Spallation Neutron Source enables the use of multiple incident energies within a single source pulse, greatly expanding the information gained in a single measurement. Furthermore, the high flux grants an enhanced capability for polarization analysis. This enables the separation of nuclear from magnetic scattering or coherent from incoherent scattering in hydrogenous materials over a large range of energy and momentum transfer. This paper presents optimizations and technical solutions to address the key requirements envisioned in the science case and the anticipated uses of this instrument.

Publisher

AIP Publishing

Subject

Instrumentation

Link

https://aip.scitation.org/doi/pdf/10.1063/5.0089740

Reference105 articles.

1. Utilization of multiple incident energies on Cold-Neutron Disk-Chopper Spectrometer at J-PARC

2. First Demonstration of Novel Method for Inelastic Neutron Scattering Measurement Utilizing Multiple Incident Energies

3. First implementation of Repetition Rate Multiplication in neutron spectroscopy

4. Implementation of Repetition Rate Multiplication in Cold, Thermal and Hot Neutron Spectroscopy

5. Using polarization analysis to separate the coherent and incoherent scattering from protein samples

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