Ultra-cold Neutron Production in Anti-ferromagnetic Oxygen Solid

Details Ultra-cold Neutron Production in Anti-ferromagnetic Oxygen Solid Ultra-cold Neutron Production in Anti-ferromagnetic Oxygen Solid

2004-06-02

arxiv.org/abs/nucl-th/0406004v1

Physics

Nuclear Physics

Nuclear Theory

9 pages, 7 figures

Scientific paper

Spin waves, or magnons, in the anti-ferromagnetic $\alpha$ phase of solid oxygen provide a novel mechanism for ultra-cold neutron (UCN) production. Magnons dominate the energy exchange mechanisms for cold neutrons and UCN in solid $\alpha$-oxygen, much in the same way as do phonons in solid deuterium superthermal UCN sources. We present calculations of UCN production and upscattering rates in S-O$_2$. The results indicate that S-O$_2$ is potentially a much more efficient UCN source material than solid deuterium.

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