Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English   Periodicity: 4 times per year   Open access peer reviewed journal

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A. Ya. Dzyublik<sup>1

1</sup>Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine

Abstract: We analyzed the possibility of the two-step triggering of nuclear isomers by short X-ray laser pulses via an excited intermediate level. The estimations of the decay acceleration are performed for the 6^- isomer of ⁸⁴Rb in the field of future European X-ray laser.

Keywords: X-ray laser, nuclear isomer, triggering, energy release, decay accelaration.

1. Collins C. B. et al. γ emission from 31-yr isomer of ¹⁷⁸Hf induced by X-ray irradiation. Phys. Rev. C 61 (2000) 054305. https://doi.org/10.1103/PhysRevC.61.054305

2. Tkalya E. V. Induced decay of nuclear isomer ^178m2Hf and "isomeric bomb". Usp. Fiz. Nauk 175 (2005) 555.

3. Karpeshin F. F., Trzhaskovskaya M. V., Zhang J. Prospect of triggering the ^178m2Hf isomer and the role of resonance conversion. Eur. Phys. J. A 39 (2009) 341. https://doi.org/10.1140/epja/i2008-10714-3

4. Palffy A., Scheid W., Harman Z. Theory of nuclear excitation by electron capture for heavy ions. Phys. Rev. A 73 (2006) 012715. https://doi.org/10.1103/PhysRevA.73.012715

5. Palffy A., Evers J., Keitel C. H. Isomer Triggering via Nuclear Excitation by Electron Capture. Phys. Rev. Lett. 99 (2007) 172502. https://doi.org/10.1103/PhysRevLett.99.172502

6. Gosselin G. et al. Nuclear transition induced by low-energy unscreened electron inelastic scattering. Phys. Rev. C 79 (2009) 014604. https://doi.org/10.1103/PhysRevC.79.014604

7. Dzyublik A. Ya., Mèot V., Gosselin G. Decay of isomers stimulated by laser radiation. Laser Phys. 17 (2007) 760. https://doi.org/10.1134/S1054660X07050258

8. Davydov A. S. Theory of Atomic Nucleus (Moscow: Fizmatgiz, 1958) 611 p.

9. Bürvenich T. J., Evers J., Keitel C. H. Nuclear Quantum Optics with X-Ray Laser Pulses. Phys. Rev. Lett. 96 (2006) 142501. https://doi.org/10.1103/PhysRevLett.96.142501

10. Pálffy A., Evers J., Keitel C. H. Electric-dipole-forbidden transitions driven by super-intense laser fields. Phys. Rev. C 77 (2008) 044602. https://doi.org/10.1103/PhysRevC.77.044602

11. Davydov A. S. Excited States of Atomic Nuclei (Moscow: Atomizdat, 1967) 263 p.

12. Dzyublik A. Ya. Solution of time-dependent Schrödinger equation in unconventional Hilbert space. Teor. Mat. Fiz. 87 (1991) 86. https://doi.org/10.1007/BF01016579

13. Olariu S., Olariu A. Induced emission of γ radiation from isomeric nuclei. Phys. Rev. C 58 (1998) 333. https://doi.org/10.1103/PhysRevC.58.333