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首页> 外文期刊>The European Physical Journal, A. Hadrons and Nuclei >Isomeric yield ratios of ~(87m,g)Y from different nuclear reactions
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Isomeric yield ratios of ~(87m,g)Y from different nuclear reactions

机译：不同核反应的〜（87m，g）Y异构收率

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摘要

The independent isomeric yield ratios of ~(87m,g)Y produced from the ~(93)Nb(γ,α2n) and ~(nat)Zr(γ, pxn) reactions with the end-point bremsstrahlung energy of 45–70MeV have been determined by an off-line γ-ray spectrometric technique using 100MeV electron linac at the Pohang accelerator laboratory, Korea. The isomeric yield ratios of ~(87m,g)Y were also determined from the ~(nat)Zr(p, αxn) and the ~(89)Y(p, p2n) reactions with E_P = 15–45MeV as well as those from the ~(89)Y(α, α2n) reaction with E_α = 32–43MeV using the MC-50 cyclotron at the Korea Institute of Radiological and Medical Science, Korea. The isomeric yield ratios of ~(87m,g)Y from the present work in the ~(93)Nb(γ,α2n), ~(nat)Zr(γ, px n), ~(nat)Zr(p, αx n), ~(89)Y(p, p2n), and ~(89)Y(α, α2n) reactions were compared with those of the literature data in the ~(85)Rb(α, 2n), the ~(86,87,88)Sr(d, x n), ~(89)Y(n, 3n), and the ~(89)Y(γ, 2n) reactions to examine the role of target, projectiles, and ejectiles through compound nucleus excitation energy and input angular momentum. The isomeric yield ratios of ~(87m,g)Y in the above eleven reactions were also calculated using the computer code TALYS 1.4 and compared with the experimental data. The different behaviors between photon- and neutron-induced reactions and charged-particle–induced reactions are discussed from the viewpoint of compound and non-compound (pre-equilibrium) process.
机译：由〜（93）Nb（γ，α2n）和〜（nat）Zr（γ，pxn）反应产生的〜（87m，g）Y的独立异构体屈服比，其终点致辐射能为45-70MeV。由韩国浦项加速器实验室使用100MeV电子直线加速器通过离线γ射线光谱技术确定。还通过〜（nat）Zr（p，αxn）和〜（89）Y（p，p2n）反应（E_P = 15-45MeV）确定了〜（87m，g）Y的异构体收率。使用韩国放射医学医学研究所的MC-50回旋加速器从E_α= 32–43MeV的〜（89）Y（α，α2n）反应中获得。在〜（93）Nb（γ，α2n），〜（nat）Zr（γ，px n），〜（nat）Zr（p，αx）中从当前工作获得的〜（87m，g）Y的异构体产率将n），〜（89）Y（p，p2n）和〜（89）Y（α，α2n）反应与〜（85）Rb（α，2n），〜（ 86,87,88）Sr（d，xn），〜（89）Y（n，3n）和〜（89）Y（γ，2n）反应，以检查目标，弹丸和弹丸通过化合物的作用原子核的激发能和输入角动量。还使用计算机代码TALYS 1.4计算了上述11个反应中〜（87m，g）Y的异构体收率，并与实验数据进行了比较。从复合和非复合（预平衡）过程的角度讨论了光子和中子反应与带电粒子反应之间的不同行为。

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