分类: 物理学 >> 核物理学 提交时间: 2023-10-09
摘要: Photonuclear reactions using a laser Compton scattering (LCS) gamma source provide a new method forproducing radioisotopes for medical applications. Compared with the conventional method, this method has theadvantages of a high specific activity and less heat. Initiated by the Shanghai Laser Electron Gamma Source(SLEGS), we conducted a survey of potential photonuclear reactions, (, n), (, p), and (, ) whose cross#2;sections can be measured at SLEGS by summarizing the experimental progress. In general, the data are rareand occasionally inconsistent. Therefore, theoretical calculations are often used to evaluate the production ofmedical radioisotopes. Subsequently, we verified the model uncertainties of the widely used reaction codeTALYS-1.96, using the experimental data of the 100Mo(, n) 99Mo, 65Cu(, n) 64Cu, and 68Zn(, p) 67Cu reac#2;tions.
分类: 物理学 >> 核物理学 提交时间: 2023-06-18 合作期刊: 《Nuclear Science and Techniques》
摘要: High-spin states in 84Rb have been studied by using the 70Zn(18O, p3n)84Rb reaction at beam energy of 75 MeV. Three regular magnetic dipole bands including strong M1 and weak E2 transitions have been observed in this nucleus which shows the characteristic feature of magnetic rotation. These bands are interpreted in the projected shell model for the first time on the basis of the four-quasiparticle configuration of the type(fp)(g9/22)(g9/2). It is shown that the calculated sequence lies roughly in the same energy range as the experimental one but the interval between neighboring levels is larger than the corresponding experimental value. We believe that a 4-quasiparticle band crossing with the 2-quasiparticle band will depress the energies of the states.