Production cross section of At radionuclides from ${}^7$Li+${}^{\text{nat}}$Pb and ${}^9$Be+${}^{\text{nat}}$Tl reactions

Abstract

Earlier we reported theoretical studies on the probable production of astatine radionuclides from ${}^{6,7}$Li and ${}^9$Be-induced reactions on natural lead and thalliun targets, respectively. For the first time, in this report, production of astatine radionuclides has been investigated experimentally with two heavy ion induced reactions: ${}^9$Be+${}^{\text{nat}}$Tl and ${}^7$Li+${}^{\text{nat}}$Pb. Formation cross sections of the evaporation residues, ${}^{207,208,209,210}$At, produced in (HI, xn) channel, have been measured by the stacked-foil technique followed by the off-line $\gamma$-spectrometry at the low incident energies ($<$50 MeV). Measured excitation functions have been explained in terms of compound nuclear reaction mechanism using Weisskopf-Ewing and Hauser-Feshbach model. Absolute cross section values are lower than the respective theoretical predictions.

arXiv comment11 pages 6 figures

References in corpus (3)

• New measurement of cross section of evaporation residues from ${}^{\text{nat}}$Pr+${}^{12}$C reaction: A comparative study on the production of ${}^{149}$Tb
• Production of ${}^{93,94,95,96}$Tc through ${}^7$Li+${}^{nat}$Zr and ${}^9$Be+${}^{nat}$Y reactions: Measurement of excitation functions
• An attempt to explore the production routes of Astatine radionuclides: Theoretical approach

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• Measurement of cross section of the residues from the ${}^{11}$B-induced reaction on ${}^{89}$Y and ${}^{93}$Nb: Production of ${}^{97}$Ru and ${}^{101m}$Rh