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Observation of the Shape Isomer States in Fission Fragments from (γ, f) Reactions

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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

The binary break-up of heavy fission fragments from the 235,238U(γ, f) reactions, while the fragments cross a solid medium, were observed for the first time. The experiments were performed at the beam of the M-T‑25 microtron at the Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, using VEGA (V-E Guide based Array) setup. Fission fragments were captured by the electrostatic guide system four meters long and transported in the time-of-flight spectrometer. The results let us to suppose that the fragments undergoing the break-up were born in the shape isomer states with a typical lifetime of more than 400 ns.

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Authors and Affiliations

  1. Joint Institute for Nuclear Research, 141980, Dubna, Moscow oblast, Russia

    D. V. Kamanin, Yu. V. Pyatkov, A. N. Solodov, A. O. Strekalovsky, V. E. Zhuchko, Z. I. Goryainova, O. V. Strekalovsky & E. A. Kuznetsova

  2. National Nuclear Research University “MEPHI”, 115409, Moscow, Russia

    Yu. V. Pyatkov

  3. Faculty of Military Science, University of Stellenbosch, 7602, Stellenbosch, South Africa

    V. Malaza

  4. Dubna State University, 141980, Dubna, Moscow oblast, Russia

    O. V. Strekalovsky

Authors
  1. D. V. Kamanin
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  2. Yu. V. Pyatkov
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  3. A. N. Solodov
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  4. A. O. Strekalovsky
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  5. V. E. Zhuchko
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  6. Z. I. Goryainova
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  7. V. Malaza
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  8. O. V. Strekalovsky
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  9. E. A. Kuznetsova
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Corresponding author

Correspondence to Z. I. Goryainova.

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Kamanin, D.V., Pyatkov, Y.V., Solodov, A.N. et al. Observation of the Shape Isomer States in Fission Fragments from (γ, f) Reactions. Bull. Russ. Acad. Sci. Phys. 87, 1238–1241 (2023). https://doi.org/10.3103/S1062873823702866

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  • DOI: https://doi.org/10.3103/S1062873823702866

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