Highly nuclear-spin-polarized deuterium atoms from the UV photodissociation of 
deuterium iodide.

Sofikitis, D.; Glodic, P.; Koumarianou, G.; Jiang, H.; Bougas, L.; Samartzis, P. C.; Andreev, A.; Rakitzis, T. P.

doi:10.1103/PhysRevLett.118.233401

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Highly nuclear-spin-polarized deuterium atoms from the UV photodissociation of deuterium iodide.

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Jiang, H.
Department of Dynamics at Surfaces, MPI for Biophysical Chemistry, Max Planck Society;

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Citation

Sofikitis, D., Glodic, P., Koumarianou, G., Jiang, H., Bougas, L., Samartzis, P. C., et al. (2017). Highly nuclear-spin-polarized deuterium atoms from the UV photodissociation of deuterium iodide. Physical Review Letters, 118(23): 233401. doi:10.1103/PhysRevLett.118.233401.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-76D0-F

Abstract

We report a novel highly spin-polarized deuterium (SPD) source, via the photodissociation of deuterium iodide at 270 nm. I(P-2(3/2)) photofragments are ionized with m-state selectivity, and their velocity distribution measured via velocity-map slice imaging, from which the D polarization is determined. The process produces similar to 100% electronically polarized D at the time of dissociation, which is then converted to similar to 60% nuclear D polarization after similar to 1.6 ns. These production times for SPD allow collision-limited densities of similar to 10(18) cm(-3) and at production rates of similar to 10(21) s(-1) which are 10(6) and 10(4) times higher than conventional (Stern-Gerlach separation) methods, respectively. We discuss the production of SPD beams, and combining high-density SPD with laser fusion, to investigate polarized D-T, D-He-3, and D-D fusion.