Modeling alignment enhancement for solid polarized targets
| Autor: | Keller, Dustin |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Eur. Phys. J. A (2017) 53: 155 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1140/epja/i2017-12344-0 |
| Popis: | A model of dynamic orientation using optimized radiofrequency (RF) irradiation produced perpendicular to the holding field is developed for the spin-1 system required for tensor-polarized fixed-target experiments. The derivation applies to RF produced close to the Larmor frequency of the nucleus and requires the electron spin-resonance linewidth to be much smaller than the nuclear magnetic resonance frequency. The rate equations are solved numerically to study a semi-saturated steady-state resulting from the two sources of irradiation: microwave from the DNP process and the additional RF used to manipulate the tensor polarization. The steady-state condition and continuous-wave NMR lineshape are found that optimize the spin-1 alignment in the polycrystalline materials used as solid polarized targets in charged-beam nuclear and particle physics experiments. Comment: 13 pages, 12 figures |
| Databáze: | arXiv |
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