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47 MeV/u ^(12)C与^(133)Cs反应中碘同位素产生截面的Q_(gg)依赖关系 被引量：1

Q_(gg) Dependence of Production Cross Sections for Iodine Isotopes in Reaction of ^(133)Cs With 47 MeV/u ^(12)C
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摘要 用47 MeV/u 12C离子轰击133Cs靶,应用放射化学分离技术和离线γ射线谱学,得到碘同位素的产生截面。丰中子碘同位素的独立产生截面指数地依赖于Qgg值,而缺中子碘同位素的独立产生截面则偏离这一直线关系。这一事实可对在深部非弹转移过程中产生丰中子碘同位素予以解释。 ^133Cs were irradiated with 47 MeV/u ^12C ions, and the production cross sections of iodine isotopes in ^133 Cs ＋ ^12C reaction were obtained by a combination of the radiochemical separation technique and off-line γ-ray spectroscopy. It was found that the production cross sections of neutron-rich isotopes for iodine show an exponential dependence on the Qgg values. The independent production cross sections deviate from this linear dependence in the case of neutron-deficient isotopes of iodine. The fact may explain that neutron-rich isotopes of iodine were produced in the deep inelastic transfer processes.
作者 杨维凡 丁华杰 徐岩冰 袁双贵
机构地区 中国科学院近代物理研究所
出处 《原子能科学技术》 EI CAS CSCD 北大核心 2008年第B09期4-6,共3页 Atomic Energy Science and Technology
基金 国家自然科学基金资助项目(10575118)
关键词 ^12C离子 ^133Cs 碘同位素 缺中子和丰中子 ^12C ion ^133Cs iodine isotope neutron-deficient and neutron-rich
分类号 O615.11 [理学—无机化学]
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参考文献10

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同被引文献14

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原子能科学技术
2008年 第B09期

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