Nuclear resonant scattering spectroscopy of Nodyium by synchrotron radiation

本项目的目的是开发基于同步辐射（SR）的钕和镱的穆斯堡尔光谱测量系统。穆斯堡尔光谱学是一种研究元素特定电子态的方法，即使在由许多元素组成的化合物中也是如此。钕和镱都是稀土元素，它们在磁性材料等许多材料中都起着重要的作用。然而，传统的以放射性同位素（RI）作为伽马射线源的穆斯堡尔谱法在制备放射性同位素时存在困难。为了解决这个困难，可以使用SR。为了实现这两种元素的基于SR的穆斯堡尔光谱，开发了测量系统的组成部分。结果表明，在SR基镱穆斯堡尔谱中，检测计数率得到了显著提高，而在钕基SR核共振散射中，计数率也达到了1.5次/秒左右。

The aim of this project is the development of the measurement system for synchrotron-radiation (SR) based Mossbauer spectroscopy of Neodymium and Ytterbium. Mossbauer spectroscopy is a method for the study of element-specific electronic states even in compounds composed of many elements. Both Neodymium and Ytterbium is rare-earth elements and they often have important function for many materials such as magnetic materials. However, the traditional Mossbauer spectroscopy with radioactive isotopes (RI) as gamma-ray source has difficulty in the preparation of the RI. To solve this difficulty, SR can be used. To achieve SR based Mossbauer spectroscopy of these two elements, the components of the measurement system was developed. As a result, the drastic enhancement of the detected counting rate in SR based Mossbauer spectroscopy of Ytterbium is achieved, and also the counting rate of about 1.5 count per second is achieved in nuclear reosonant scattering of SR by Neodymium.