用于低温下X射线光子相关光谱学的小角散射室。

A small-angle scattering chamber for x-ray photon correlation spectroscopy at low temperatures.

作者信息

Steinmann Ricardo, Chushkin Yuriy, Caronna Chiara, Chavanne Joel, Madsen Anders

机构信息

European Synchrotron Radiation Facility, Grenoble, France.

出版信息

Rev Sci Instrum. 2011 Feb;82(2):025109. doi: 10.1063/1.3553012.

DOI:10.1063/1.3553012

PMID:21361635

Abstract

A low temperature sample environment for x-ray photon correlation spectroscopy measurements in small-angle scattering geometry is presented. The chamber has been designed to allow investigations of dynamical phenomena in supercooled liquids and the typical working temperature range is 110-330 K with a thermal stability ΔT/T down to 10(-4). A variable external magnetic field up to 0.12 T can be applied, which is of interest in studies of, e.g., ferrofluids and liquid crystalline materials. Here, technical details about the sample environment are given together with examples of recent applications.

摘要

本文介绍了一种用于小角散射几何结构中X射线光子相关光谱测量的低温样品环境。该腔室的设计允许对过冷液体中的动力学现象进行研究，典型工作温度范围为110 - 330K，热稳定性ΔT/T低至10^(-4)。可以施加高达0.12T的可变外部磁场，这在例如铁磁流体和液晶材料的研究中具有重要意义。这里给出了关于样品环境的技术细节以及近期应用的示例。