Challenges in describing nuclear reactions outcomes at near-barrier energies

Micro-Mini & Nano-Dosimetry & Innovative Technologies in Radiation Therapy

Dasgupta, M.^1 ; Simpson, E.C.^1 ; Kalkal, S.^1 ; Cook, K.J.^1 ; Carter, I.P.^1 ; Hinde, D.J.^1 ; Luong, D.H.^1

Department of Nuclear Physics, Research School of Physics and Engineering, Australian National University, ACT

2601, Australia^1

关键词: Accurate prediction;    Australian National University;    Barrier energy;    Cluster nucleus;    Cluster structure;    Heavy-ion therapy;    Model development;    Reaction modes;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/777/1/012013/pdf
DOI  :  10.1088/1742-6596/777/1/012013

来源: IOP

【 摘 要 】

The properties of light nuclei such as6Li,7Li,9Be and12C, and their reaction outcomes are known to be strongly influenced by their underlying α-cluster structure. Reaction models do not yet exist to allow accurate predictions of outcomes following a collision of these nuclei with another nucleus. As a result, reaction models within GEANT, and nuclear fusion models do not accurately describe measured products or cross sections. Recent measurements at the Australian National University have shown new reaction modes that lead to breakup of6Li,7Li into lighter clusters, again presenting a further challenge to current models. The new observations and subsequent model developments will impact on accurate predictions of reaction outcomes of12C - a three α-cluster nucleus - that is used in heavy ion therapy.