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| Hauptseite > Online First > Current developments of polarized sources and polarimeter at FZ Jülich and further applications > print |
| Hauptseite > Online First > Current developments of polarized sources and polarimeter at FZ Jülich and further applications > print |
| 001 | 1046981 | ||
| 005 | 20251009115039.0 | ||
| 037 | _ | _ | |a FZJ-2025-04049 |
| 041 | _ | _ | |a English |
| 100 | 1 | _ | |a Engels, Ralf W. |0 P:(DE-Juel1)131141 |b 0 |e Corresponding author |u fzj |
| 111 | 2 | _ | |a 26th International Symposium on Spin Physics |g SPIN2025 |c Qingdao |d 2025-09-21 - 2025-09-26 |w Peoples R China |
| 245 | _ | _ | |a Current developments of polarized sources and polarimeter at FZ Jülich and further applications |
| 260 | _ | _ | |c 2025 |
| 336 | 7 | _ | |a Conference Paper |0 33 |2 EndNote |
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| 520 | _ | _ | |a A better theoretical understanding of the quantum mechanical processes in spin filter for the separation of metastable hydrogen atoms in individual hyperfine substates enables a number of new applications. For example, it is now possible to build a new generation of Lamb-shift polarimeter that can separate not only α but also the β states with m$_J$=−1/2. This opens up completely new possibilities for the search of hydrogen atoms in forbidden substates after the bound beta decay of the neutron. At the same time, corresponding simulations also provide the parameters for designing a Lamb-shift polarimeter for $^3$He$^+$ ions. Furthermore, it has recently been shown that classical Lamb-shift polarimeter can determine the polarization, in addition to protons/deuterons and H/D atoms, of H$_2$/D$_2$ molecules as well as all possible ion beam species, i.e. H$^+_2$/D$^+_2$/HD$^+$,H$^−$/D$^−$ or even H$^+_3$.In parallel, this knowledge might help to create a new type of optically pumped polarized source by transferring a laser-induced polarization of the rotational magnetic moment to the nucleons in H$_2$/D$_2$ and HD molecules. These techniques might also be used for the production and detection of polarized fuel for the enhancement of the energy output of nuclear fusion reactors or the production of hyperpolarized probes in medicine.A recent application was a proof-of-principle measurement of the polarization conservation in H$_2$ molecules after recombination of polarized atoms in a carbon-coated storage cell, similar to the cell that is foreseen for a planned polarized target at the LHCb experiment. In addition, in some more exotic experiments the components of a Lamb-shift polarimeter can be used to detect axions or “dark hydrogen”. |
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| 856 | 4 | _ | |u https://indico.ihep.ac.cn/event/22189/contributions/196426/ |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/1046981/files/Spin25.RalfEngels.pptx |y Restricted |
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