合肥储存环光学速调管自发辐射的数值模拟

Analysis of Deformed Parameters on Nuclear Superdeformed States in A～190 Region

采用数值模拟方法，结合实测磁场，并考虑到束流能散、角分散、位置分散的影响，计算了合肥储存环光学速调管的自发辐射谱．在模拟过程中电子的随机抽样采用了统计平均法．讨论了能散、角分散、位置分散对自发辐射调制率的影响，计算了电子的偏轴入射及斜入射对自发辐射谱的影响，得到了许多重要数据。

The Davydov Filippov model with rigid triaxial asymmetry is applied to nuclear superdeformed states for the first time. Level spins and transition energies of SD bands in the A～190 region are studied with the rotational spectral formula derived from the Davydov Filippov Hamiltonian. The deformation parameters β and γ denoting respectively the extent of quadrupole deformation and the degree of axial asymmetry are obtained by the fitting of rotational spectra of SD bands with satisfactory results.