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Dynamical Control of Nuclear Isomer Depletion via Electron Vortex Beams
Yuanbin Wu1, Simone Gargiulo2, Fabrizio Carbone2
1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany.
Physical Review Letters
|May 6, 2022
Summary
Scientists can now control nuclear decay using specially shaped electron vortex beams. This method significantly speeds up energy release from nuclear isomers, offering potential for new energy sources and radiation applications.
Area of Science:
- Nuclear physics
- Atomic physics
- Quantum mechanics
Background:
- Nuclear isomers store significant energy.
- Controlling isomeric nuclear decay is a long-standing challenge.
- High energy-to-mass ratio of isomers presents unique opportunities.
Purpose of the Study:
- To develop a protocol for external control of isomeric nuclear decay.
- To investigate the use of electron vortex beams for this control.
- To demonstrate enhanced decay rates and manipulation of capture mechanisms.
Main Methods:
- Theoretical modeling of electron vortex beam interactions with nuclear isomers.
- Designing and reshaping electron wave functions on demand.
- Simulating the recombination process of electrons into atomic shells.
Main Results:
- Electron vortex beams can induce controlled release of stored nuclear energy.
- Tailored electron vortex beams increase isomer depletion by 4 orders of magnitude compared to spontaneous decay.
- Specific orbitals enhance recombination cross-section for vortex beams by up to 6 orders of magnitude.
Conclusions:
- External control of isomeric nuclear decay is achievable using designed electron vortex beams.
- This method offers significant enhancement over spontaneous decay.
- Findings open new avenues for manipulating atomic-nuclear interactions and developing energy applications and radiation sources.
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