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高无反冲分数的碘穆斯堡尔源的研制

Preparation of an iodine Mossbauer source with high recoilless fraction
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摘要 报道了用作碘穆斯堡尔源的新材料硫酸镁(Mg_3TeO_6)研制。碲酸镁具有高熔点(1420℃)和高的德拜温度(320K),碲以Te^(+6)存在于化合物中,形成高配位完整立方结构,能代替ZnTe、SnTe作碘的穆斯堡尔源。对所研制的碲酸镁进行了X-衍射、差热及中子活化分析测试,证明从结构到纯度都达到作为碘穆斯堡尔源的要求。 The preparation of Mg3TeO6 as an iodine Mossbauer source is described. It has a high melting point(1420℃) and a high Debye temperature(320K). Te in the compcuud is in the from of Te+6 ion, with a structure having high coordination number and perfect cubic symmetry. As a substitute for ZnTe and SnTe sources, this source might be used for the Mossbauer measurements at room temperature. The preparation methods of Mg3TeO6 have the advantage of simplicity and do not need any after-treatment. The quality of Mg3TeO6 has been determined by X-diffraction, differential thermal and neutron activation analysis. The results show that Mg3TeO6 is an ideal material as a Mossbauer iodine source.
出处 《核技术》 CAS CSCD 北大核心 1990年第9期513-518,共6页 Nuclear Techniques
关键词 穆斯堡尔源 无反冲分数 碲酸镁 Mossbauer source Recoilless fraction Debye temperature X-diffraction analysis Differential thermal analysis Neutron activation analysis
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参考文献3

  • 1夏元复,穆斯堡尔效应及其应用,1984年
  • 2团体著者,核素常用数据表,1977年
  • 3戴安邦,无机化学教程,1961年

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