Bremsstrahlung emission during $\alpha$-decay of ${}^{226}\mathrm{Ra}$

Abstract

We obtained the spectrum of probability of the bremsstrahlung emission accompanying the $\alpha$-decay of ${}^{226}\mathrm{Ra}$ (E${}_{\alpha }$=4.8 MeV) by measuring the $\alpha$-$\gamma$ coincidences and using the model presented in our previous study on the $\alpha -$decay of ${}^{214}\mathrm{Po}$ (E${}_{\alpha }$=7.7 MeV). We compare the experimental data with the quantum mechanical calculation and find a good agreement between theory and experiment. We discuss the differences between the photon spectra connected with the $\alpha$-decay of the ${}^{226}\mathrm{Ra}$ and ${}^{214}\mathrm{Po}$ nuclei. For the two mentioned nuclei we analyze the bremsstrahlung emission contributions from the tunneling and external regions of the nucleus barrier into the total spectrum, and we find the destructive interference between these contributions. We also find that the emission of photons during tunneling of the $\alpha$-particle gives an important contribution to the bremsstrahlung spectrum in the whole E${}_{\gamma }$ energy range of the studied ${}^{226}$Ra nucleus.

References in corpus (8)

• Nuclear Ground-State Masses and Deformations
• Alpha-nucleus potential for alpha-decay and sub-barrier fusion
• Bremsstrahlung in Alpha-Decay
• Angular analysis of bremsstrahlung in alpha decay
• Bremsstrahlung in alpha-Decay Reexamined
• Bremsstrahlung in $\alpha$ Decay
• Does Sub-Barrier Bremsstrahlung in alpha-decay of 210Po Exist?
• Bremsstrahlung Spectrum in alpha Decay

Cited by in corpus (8)

• Model of the bremsstrahlung emission accompanying interactions between protons and nuclei from low up to intermediate energies: role of magnetic emission
• New approach to determine proton-nucleus interactions from experimental bremsstrahlung data
• Multipolar model of bremsstrahlung accompanying proton-decay of nuclei
• 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
• Tunneling times and bremsstrahlung in alpha decay
• Enhancement of incoherent bremsstrahlung in proton-nucleus scattering in the $\Delta$-resonance energy region
• Bremsstrahlung emission accompanying ternary fission of \isotope[252]{Cf}