Time of flight modulation of intensity by zero effort on Larmor

Journal article (2019)

Authors

N. Geerits Student
S.R. Parnell RST/Neutron and Positron Methods in Materials - AS , RST/Fundamental Aspects of Materials and Energy - AS
M.A. Thijs RID/TS/Technici Pool , RST/Neutron and Positron Methods in Materials - AS
A.A. van Well RST/Neutron and Positron Methods in Materials - AS , RID/Algemeen/Bedrijfsondersteuning
C. Franz Technische Universität München
A.L. Washington ISIS Neutron and Muon Source
D. Raspino ISIS Neutron and Muon Source
Robert M. Dalgliesh ISIS Neutron and Muon Source
J. Plomp RST/Neutron and Positron Methods in Materials - AS , RID/TS/Instrumenten groep
Research Group
RST/Fundamental Aspects of Materials and Energy (AS) (TU Delft)
Copyright: © 2019 N. Geerits, S.R. Parnell, M.A. Thijs, A.A. van Well, C. Franz, A. L. Washington, D. Raspino, R. M. Dalgliesh, J. Plomp
DOI: https://doi.org/10.1063/1.5123987
More Info
expand_more

Published Date

2019

Language

English

Faculty

Applied Sciences

Department

RST/Radiation, Science and Technology

Research Group

RST/Fundamental Aspects of Materials and Energy

Abstract

A time-of-flight modulation of intensity by zero effort spectrometer mode has been developed for the Larmor instrument at the ISIS pulsed neutron source. The instrument utilizes resonant spin flippers that employ electromagnets with pole shoes, allowing the flippers to operate at frequencies up to 3 MHz. Tests were conducted at modulation frequencies of 103 kHz, 413 kHz, 826 kHz, and 1.03 MHz, resulting in a Fourier time range of ∼0.1 ns to 30 ns using a wavelength band of 4 Å-11 Å.