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High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
Published on: December 22, 2015
R×B drift momentum spectrometer with high resolution and large phase space acceptance
1Technische Universität Wien, Atominstitut, Stadionallee 2, 1020 Vienna, Austria.
Nuclear Instruments & Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
|April 12, 2013
Summary
We developed a novel R×B spectrometer using magnetic field drifts for precise momentum analysis of charged particles. This instrument offers high resolution and large acceptance, ideal for low-momentum particles in the Proton and Electron Radiation Channel beam station.
Area of Science:
- Particle Physics
- Accelerator Physics
- Spectroscopy
Background:
- Momentum analysis is crucial for understanding particle decays.
- Existing spectrometers face limitations with low-momentum particles and large acceptance.
- The Proton and Electron Radiation Channel (PERC) requires advanced detection capabilities.
Purpose of the Study:
- To introduce a new R×B spectrometer design for enhanced momentum analysis.
- To leverage the R×B drift effect for particle dispersion and measurement.
- To adapt the spectrometer for use in the PERC beam station.
Main Methods:
- Utilizing the R×B drift in a uniformly curved magnetic field for particle dispersion.
- Gradually evolving the guiding magnetic field into the analyzing field for adiabatic transport.
- Designing the spectrometer for large phase space acceptance and high resolution.
Main Results:
- The R×B spectrometer achieves high resolution, reaching 14.4 keV/c with 1 mm position measurement accuracy.
- Maximum aberration is below 10⁻⁴ for particles within an 88 msr solid angle.
- Demonstrated suitability for low-momentum particles and large incident angles.
Conclusions:
- The proposed R×B spectrometer offers a significant advancement in momentum analysis.
- Its design is well-suited for the specific requirements of the PERC beam station.
- This technology enables precise measurements of decay electrons and protons.
Keywords:
Adiabatic transportLarge acceptance spectrometerMagnetic fieldNeutron decayPERCR×B drift effectMore Related Videos
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