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Proof-of-principle experiment for laser-driven cold neutron source.
S R Mirfayzi1,2, A Yogo3, Z Lan3
1Institute of Laser Engineering, Osaka University, Suita, Osaka, 565-0871, Japan. s.mirfayzi20@imperial.ac.uk.
Scientific Reports
|November 20, 2020
Summary
Scientists developed a compact, table-top laser-driven neutron source. This innovative tool provides high-brightness cold neutrons for advanced materials research, enabling new scientific insights.
Area of Science:
- Nuclear physics
- Materials science
- Laser technology
Background:
- Neutrons are crucial for probing matter's structure and properties.
- Traditional neutron sources are large and complex.
- Advancements in lasers enable novel, compact sources.
Purpose of the Study:
- To develop a compact, table-top laser-driven neutron source.
- To achieve high brightness and temporal resolution in neutron production.
- To explore the potential of laser-driven neutrons for scientific discovery.
Main Methods:
- Utilizing a pure hydrogen moderator at cryogenic temperatures.
- Employing Monte Carlo techniques to evaluate neutron energies and beam duration.
- Leveraging high repetition rate laser technology.
Main Results:
- Measured a cold neutron flux of [Formula: see text]/pulse near the moderator.
- Evaluated beam durations from hundreds of ns to tens of [Formula: see text].
- Projected cold neutron flux of [Formula: see text] with the J-EPoCH laser.
Conclusions:
- The developed table-top laser-driven neutron source shows significant promise.
- This compact source offers a new capability for materials research.
- Future upgrades will enhance cold neutron flux for broader applications.
