Cross-sections for formation of ^99mTc through ^natRu(n,x) ^99mTc reaction induced by neutrons at 13.5 and 14.8 MeV

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• 作者：Junhua Luo^a ; ^b ; ^{luojh71@163.com} ; Jiuning Han^a ; Fei Tuo^b ; Xiangzhong Kong^b ; Rong Liu^c ; Li Jiang^c
• 关键词：Neutrons ; Nuclear reaction ; Cross section ; Ruthenium ; Technetium-99m
• 刊名：Radiation Physics and Chemistry
• 出版年：2012
• 期刊代码：68_0969806x
• 类别：ph
• 出版时间：May, 2012
• 卷：81
• 期：5
• 页码：495-498
• 文件大小：206 K

摘要

The cross-sections for formation of metastable state of ⁹⁹Tc (^99mTc, 140.511 keV, 6.01 h) through ^natRu(n,x)^99mTc reaction induced by 13.5 MeV and 14.8 MeV neutrons were measured. Fast neutrons were produced via the ³H(d,n)⁴He reaction on the K-400 neutron generator. Induced gamma activities were measured by a high-resolution gamma-ray spectrometer with a high-purity germanium (HpGe) detector. Measurements were corrected for gamma-ray attenuations, dead time and fluctuation of neutron flux. Data for ^natRu(n,x)^99mTc reaction cross sections are reported to be 9.6卤1.5 and 9.2卤1.1 mb at 13.5卤0.2 and 14.8卤0.2 MeV incident neutron energies, respectively. Results were compared with the data by other anthors.