原子质量$40 \leq a \leq 200$的$E_γ\approx B_n$区偶极γ跃迁辐射强度函数和的近似
Approximation of Sums of Experimental Radiative Strength Functions of Dipole Gamma-Transitions in the Region $E_γ\approx B_n$ for the Atomic Masses $40 \leq a \leq 200$
摘要:
在$0.5 < E_1 < B_n-0.5$ MeV能量范围内,对偶极初级γ跃迁的辐射强度函数之和k(E1)+k(M1)进行了高精度的近似计算:40 K,60 Co,71,74 Ge,80 Br,114 Cd,118 Sn,124,125 Te,128 I,137,138,139 Ba,140 La,150 Sm,156,158 Gd,160 Tb,163,164,165 Dy,166 Ho,168 Er,170 Tm,174 Yb,176,177 Lu,181 Hf,182 Ta,183,184,185,187 W,188,190,191,193 Os,192 Ir,196 Pt,198 Au,200 Hg。已经表明,γ衰变的这个参数是由衰变能级和激发能级的结构决定的,至少在中子结合能范围内是这样。
英文摘要:
The sums k(E1)+k(M1) of radiative strength functions of dipole primary gamma-transitions were approximated with high precision in the energy region of $0.5 < E_1 < B_n-0.5$ MeV for nuclei: 40K, 60Co, 71,74Ge, 80Br, 114Cd, 118Sn, 124,125Te, 128I, 137,138,139Ba, 140La, 150Sm, 156,158Gd, 160Tb, 163,164,165Dy, 166Ho, 168Er, 170Tm, 174Yb, 176,177Lu, 181Hf, 182Ta, 183,184,185,187W, 188,190,191,193Os, 192Ir, 196Pt, 198Au, 200Hg by sum of two independent functions. It has been shown that this parameter of gamma-decay are determined by the structure of the decaying and excited levels, at least, up to the neutron binding energy.
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