D. Budker, M. P. Ledbetter, S. Appelt, L. S. Bouchard, B. Wojtsekhowski
We discuss a novel concept of a polarized nuclear target for accelerator fixed-target scattering experiments, which is based on parahydrogen induced polarization (PHIP). One may be able to reach a 33% free-proton polarization in the ethane molecule. The potential advantages of such a target include operation at zero magnetic field, fast ($\sim$100 Hz) polarization reversal, and operation with large intensity of an electron beam.
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http://arxiv.org/abs/1203.2712
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