期刊
出版社
ELSEVIER
DOI: 10.1016/j.nima.2020.164504
关键词
Tensor polarization; Transversity; Polarized target; Dynamic nuclear polarization; Linearly polarized target
类别
资金
- DOE, United States of America [DE-FG02-96ER40950]
- U.S. Department of Energy (DOE) [DE-FG02-96ER40950] Funding Source: U.S. Department of Energy (DOE)
We report measurements of enhanced tensor polarization on solid-state targets. The results here represent an increase in tensor polarization over that previously achieved in high energy and nuclear scattering experiments that focused on the measurement of tensor polarized observables. Enhancement techniques are used which require RF produced close to the Larmor frequency of the target spins and use selective semi-saturation resulting from two sources of irradiation, microwave for the DNP process and the additional RF used to manipulate the population of the energy levels in the target material. The spin dynamics of the solid target are used to align the spins enhancing the ensemble average to improve the figure of merit of the scattering experiment. Target rotation at an optimized rate can lead to additional enhancement by applying selective semi-saturation in polycrystalline materials that possess a Pake doublet in their NMR signal.
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