【摘要】 <正> 穆斯堡尔效应在材料科学领域中已获得相当广泛的应用,成为研究材料的微观结构、相变、磁性,氧化及腐蚀等的有力手段之一。在材料科学中,温度是很重要的,它与材料的组织、性能密切相关,因而很需要用以测量高温和低温区穆斯堡尔谱(简称M谱)的装置。本文介绍一种在77-300K范围内可任意变温及恒温的低温装置,它带有两个由Mylar膜制成的更多还原

【Abstract】 A cryogenic assembly of Mossbauer spectrometer is introduced. Its applicable temperature range is from 77K to 300K. The temperature controlling precision is ±0.1K and the temperature measuring precision is ±0.6K. The capacity of Dewar container is two liters. The consumptions of liquid N2 are 0.05 1/h and 0.14 1/h at 77K and 273K respectively. This cryogenic assembly is sufficient to meet the demands of Mossbauer spectrum measurement.更多还原