Bremsstrahlung emission accompanying ternary fission of \isotope[252]{Cf}

Abstract

\textbf{Background} In ternary fission, bremsstrahlung photons are emitted but those have never been studied yet theoretically and experimentally. In other reactions, bremsstrahlung has been studied for a long time. \textbf{Purpose} To clarify which new information about ternary fission can be obtained from study of bremsstrahlung emission accompanying the ternary fission of \isotope[252]{Cf}. \textbf{Methods} A new quantum model of emission of bremsstrahlung photons accompanying ternary fission of heavy nuclei with $\alpha$-particle as light charged particle is developed. The model takes into account geometry and dynamics of ternary fission. \textbf{Results} We present the theoretical results on the bremsstrahlung emission in the ternary fission of the \isotope[252]{Cf} nucleus. High sensitivity of the bremsstrahlung spectra is established by the model concerning to the following aspects of the ternary fission, and the theoretical calcualtions are in agreement with the preliminary experimental data. It is found that: (a) Photons are emitted with highest intensity in case of perpendicular motion of the $\alpha$\,particle concerning to fission axis; (b) Relative motion between heavy fragments reinforces significantly bremsstrahlung, leaving of $\alpha$-particle concerning to system of heavy fragments is less important; (c) Relative motion between two heavy fragments is faster, bremsstrahlung is more intensive. \textbf{Conclusions} Theoretical study of bremsstrahlung in ternary fission of the \isotope[252]{Cf} nucleus shows high sensitivity of bremsstrahlung spectra on the geometry and dynamics of ternary fission process. It is expected that new information can be obtained by the model when new experimental measurements of bremsstrahlung in ternary fission of the \isotope[252]{Cf} nucleus are available.

arXiv comment14 pages, 7 captured figures

References in corpus (19)

• Nuclear Ground-State Masses and Deformations
• Microscopic Theory of Nuclear Fission: A Review
• Alpha-nucleus potential for alpha-decay and sub-barrier fusion
• Induced Fission of ${}^{240}$Pu within a Real-Time Microscopic Framework
• True ternary fission of superheavy nuclei
• Angular analysis of bremsstrahlung in alpha decay
• Bremsstrahlung emission during $\alpha$-decay of ${}^{226}\mathrm{Ra}$
• Does Sub-Barrier Bremsstrahlung in alpha-decay of 210Po Exist?
• Quantum design using a multiple internal reflections method in a study of fusion processes in the capture of alpha-particles by nuclei
• Model of the bremsstrahlung emission accompanying interactions between protons and nuclei from low up to intermediate energies: role of magnetic emission
• Complete fusion of ${}^9$Be with spherical targets
• New approach to determine proton-nucleus interactions from experimental bremsstrahlung data
• A New Radioactive Decay Mode, True Ternary Fission, the Decay of Heavy Nuclei Into Three Comparable Fragments
• New quasibound states of the compound nucleus in $\alpha$-particle capture by the nucleus
• Manifestation of important role of nuclear forces in emission of photons in scattering of pions off nuclei
• Nucleon microscopy in proton-nucleus scattering via analysis of bremsstrahlung emission
• Light element ($Z=1,2$) production from spontaneous ternary fission of ${}^{252}$Cf
• Ternary fission with the emission of long-range $\alpha$ particles in fission of the heaviest nuclei
• Enhancement of incoherent bremsstrahlung in proton-nucleus scattering in the $\Delta$-resonance energy region