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本文叙述国内研制的第一台穆斯堡尔谱学研究用的超导磁体装置,它包括超导磁体系统、低温系统、电原和保护系统以及样品室变温和控温系统。超导磁体由主线圈和抵消线圈反接串联,最大中心场强7.5T。放射源和吸收体(样品)分别置于抵消线圈和主线圈的中心,带有超导开关的超导磁体系统工作于永久电流状态,具有良好的稳定性。磁体杜瓦用液氮屏和由蒸发的冷氦气冷却的气冷屏结构,蒸发率小于0.2 1/h,杜瓦中心具有可
This article describes the first superconducting magnet device developed in China for the study of Mossbauer spectroscopy, which includes superconducting magnet system, cryogenic system, electroplating and protection system, and sample room temperature and temperature control system. The superconducting magnet is connected in series by the main coil and the cancellation coil, and the maximum center field strength is 7.5T. Radioactive sources and absorbers (samples) are placed in the center of the offset coil and the primary coil, respectively. The superconducting magnet system with superconducting switches operates in a permanent current state with good stability. Magnet Dewar with liquid nitrogen screen and cooled by the evaporation of cold helium gas cooling screen structure, the evaporation rate of less than 0.2 1 / h, Dewar Center has