用于 X 射线和中子散射实验的原位单轴压力池。

In situ uniaxial pressure cell for x-ray and neutron scattering experiments.

机构信息

Laboratory for Neutron and Muon Instrumentation, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland.

Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland.

出版信息

Rev Sci Instrum. 2023 Jan 1;94(1):013906. doi: 10.1063/5.0114892.

DOI:10.1063/5.0114892

PMID:36725613

Abstract

We present an in situ uniaxial pressure device optimized for small angle x-ray and neutron scattering experiments at low-temperatures and high magnetic fields. A stepper motor generates force, which is transmitted to the sample via a rod with an integrated transducer that continuously monitors the force. The device has been designed to generate forces up to 200 N in both compressive and tensile configurations, and a feedback control allows operating the system in a continuous-pressure mode as the temperature is changed. The uniaxial pressure device can be used for various instruments and multiple cryostats through simple and exchangeable adapters. It is compatible with multiple sample holders, which can be easily changed depending on the sample properties and the desired experiment and allow rapid sample changes.

摘要

我们提出了一种原位单轴压力装置，该装置经过优化，可用于低温和高磁场下的小角度 X 射线和中子散射实验。步进电机产生力，该力通过带有集成换能器的杆传递到样品，换能器可连续监测力。该装置的设计可在压缩和拉伸两种配置下产生高达 200 N 的力，并且反馈控制可允许在改变温度时以连续压力模式操作该系统。通过简单且可互换的适配器，该单轴压力装置可用于各种仪器和多个低温恒温器。它与多种样品架兼容，可根据样品特性和所需的实验轻松更换，并允许快速更换样品。