一种用于低温拉曼光谱测量的珀耳帖冷却金刚石对顶砧池。

A Peltier cooling diamond anvil cell for low-temperature Raman spectroscopic measurements.

作者信息

Noguchi Naoki, Okuchi Takuo

机构信息

Institute for Planetary Materials, Okayama University, Misasa, Tottori 682-0193, Japan.

出版信息

Rev Sci Instrum. 2016 Dec;87(12):125107. doi: 10.1063/1.4972254.

DOI:10.1063/1.4972254

PMID:28040931

Abstract

A new cooling system using Peltier modules is presented for a low-temperature diamond anvil cell instrument. This cooling system has many advantages: it is vibration-free, low-cost, and compact. It consists of double-stacked Peltier modules and heat sinks, where a cooled ethylene glycol-water mixture flows through a chiller. Current is applied to the Peltier modules by two programmable DC power supplies. Sample temperature can be controlled within the range 210-300 K with a precision of ±0.1 K via a Proportional-Integral-Differential (PID) control loop. A Raman spectroscopic study for the HO ice VII-VIII transition is shown as an example of an application of the Peltier cooling diamond anvil cell system.

摘要

本文介绍了一种用于低温金刚石对顶砧仪器的新型冷却系统，该系统采用了珀耳帖模块。这种冷却系统具有许多优点：无振动、成本低且结构紧凑。它由双层堆叠的珀耳帖模块和散热器组成，冷却的乙二醇 - 水混合物流经冷却器。通过两个可编程直流电源向珀耳帖模块施加电流。通过比例积分微分（PID）控制回路，样品温度可在210 - 300 K范围内控制，精度为±0.1 K。作为珀耳帖冷却金刚石对顶砧系统应用的一个例子，展示了对HO冰VII - VIII转变的拉曼光谱研究。