Nuclear resonant scattering spectroscopy of Nodyium by synchrotron radiation

本项目的目标是研制基于同步辐射的钕和镱穆斯堡尔谱测量系统。穆斯堡尔谱学是一种研究特定元素电子状态的方法，即使是在由许多元素组成的化合物中。钕和镱都是稀土元素，它们在许多材料如磁性材料中具有重要的作用。传统的穆斯堡尔谱学以放射性同位素（RI）为γ射线源，存在RI制备困难的问题。为了解决这个问题，可以使用SR。为了实现这两种元素的同步辐射穆斯堡尔谱，研制了测量系统的组成部分。结果，在镱的共振穆斯堡尔谱中探测到的计数率得到了大幅度的提高，在钕的共振核散射中也获得了约1.5计数/秒的计数率。

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.