Abstract
We demonstrate recent developments in neutron Fourier time-of-flight in an experiment using very-cold neutrons. The implementation of a novel sinusoidal stator design eliminates a systematic effect associated with triangular modulation in existing Fourier choppers. Although transmission is inherently higher for triangular modulation, it is demonstrated that only about 3 % additional measurement time is needed with sinusoidal modulation to achieve the same statistical uncertainty. In addition, a new neutron-based technique that does not require additional instrumentation is employed to determine the chopper phase offset.
Original language | English |
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Article number | 169570 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 1066 |
DOIs | |
State | Published - Sep 2024 |
Keywords
- Fourier time-of-flight
- Time-of-flight
- Very-cold neutrons