- 必威体育下载

姓名
邮箱
手机号码
标题
留言内容
验证码

摘要

随着近年来凝聚态物理、空间观测与量子技术的不断发展, 极低温制冷需求也日益增多. 绝热去磁制冷具有不依赖重力、结构紧凑、成本较低等特点, 可同时满足空间和地面应用. 本文设计并研制了一台50 mK多级绝热去磁制冷机. 该机为三级串联架构, 由一台GM型脉管制冷机提供4 K预冷; 采用钆镓石榴石和十二水合硫酸铬钾作为制冷工质; 研制的主动式/被动式气隙热开关, 用以控制级间传热; 针对磁屏蔽、恒温控制等构建了多个数值模型进行辅助设计. 目前该机获得的最低制冷温度为38 mK, 100 mK时制冷量约71 mJ, 温度波动10.6 μK. 本研究为后续开展50 mK连续绝热去磁制冷奠定了重要基础.

关键词:

Abstract

With the development of condensed matter physics, space observation, and quantum technology in recent years, the demand for ultra-low temperature refrigeration has increased. The adiabatic demagnetization refrigerator (ADR) has the advantages of being unaffected by gravity, compact structure, and relatively low cost, which can meet the needs of space and ground applications. In this paper, a 50 mK multi-stage ADR is designed and developed which comprises a GM-type pulse tube cryocooler for precooling and three ADR stages connected in series. For easy installation and maintenance, the three ADR stages are placed on a separate cold plate which is connected to the 4 K cold plate via copper columns. The Dy ₃Ga ₅O ₁₂(GGG) is employed as the refrigerant in the first stage, whereas CrK(SO ₄) ₂· 12H ₂O (CPA) is utilized for the second stage and third stage. To control heat transfer between stages and the 4 K heat sink, active gas-gap heat switch and passive gas-gap heat switch are developed, with the latter having a switching ratio over 1000. The 4 T, 2 T and 1 T superconducting magnets are utilized in the 1st, 2nd and 3rd stage, respectively, and a numerical model is used to optimize the design of magnetic shielding. In addition, an ADR simulation model with a proportional-integral-derivative (PID) controller is constructed to assist in tuning the controller parameters in the experiment. The lowest temperature achieved in the experiment is 38 mK, with a temperature fluctuation of 10.6 μK. The durations of different cooling power (1, 2 and 3 μW) at 100 mK are also measured. It is calculated that the no-load maintenance time is about 4.3 h, the leakage heat power is about 4.5 μW, and the total cooling capacity is about 71 mJ. This refrigerator is the first Chinese multi-stage ADR that can reach a temperature under 50 mK, which lays an important foundation for subsequent research on continuous adiabatic demagnetization refrigeration.

Keywords:

adiabatic demagnetization refrigeration/
ultra-low temperature/
multi-stage

作者及机构信息

1.
2.

通信作者:戴巍,cryodw@mail.ipc.ac.cn; 沈俊,jshen@mail.ipc.ac.cn

基金项目:国家重点研究计划(批准号: 2021YFC2203303)、中国科学院仪器设备研制项目(批准号: GJJSTD20190001)和中国科学院理化技术研究所所长基金(批准号: 2022-DW)资助的课题.

Authors and contacts

1.
2.

Corresponding author:Dai Wei,cryodw@mail.ipc.ac.cn; Shen Jun,jshen@mail.ipc.ac.cn

Funds:Project supported by the National Key Research and Development Program of China (Grant No. 2021YFC2203303), the Scientific Instrument Developing Project of the Chinese Academy of Sciences, China (Grant No. GJJSTD20190001), and the Foundation of Director of Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, China (Grant No. 2022-DW).

文章全文: translate this paragraph

参考文献

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]

施引文献

下载: 全尺寸图片幻灯片

下载: 全尺寸图片幻灯片

下载: 全尺寸图片幻灯片

下载: 全尺寸图片幻灯片

下载: 全尺寸图片幻灯片

下载: 全尺寸图片幻灯片

下载: 全尺寸图片幻灯片

下载: 全尺寸图片幻灯片

下载: 全尺寸图片幻灯片

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]

[1]	俎红叶, 程维军, 王亚男, 王晓涛, 李珂, 戴巍.冷凝泵型稀释制冷机实验研究. 必威体育下载 , 2023, 72(8): 080701.doi:10.7498/aps.72.20222257
[2]	罗进宝, VasiliyPelenovich, 曾晓梅, 郝中华, 张翔宇, 左文彬, 付德君.离子剂量比在气体团簇多级能量平坦化模式中的作用. 必威体育下载 , 2021, 70(22): 223601.doi:10.7498/aps.70.20202011
[3]	王昌, 李珂, 沈俊, 戴巍, 王亚男, 罗二仓, 沈保根, 周远.用于亚开温区的极低温绝热去磁制冷机. 必威体育下载 , 2021, 70(9): 090702.doi:10.7498/aps.70.20202237
[4]	宋志军, 吕昭征, 董全, 冯军雅, 姬忠庆, 金勇, 吕力.极低温散粒噪声测试系统及隧道结噪声测量. 必威体育下载 , 2019, 68(7): 070702.doi:10.7498/aps.68.20190114
[5]	刘桢, 黄洁, 王建涛, 赵拥军, 陈世文.基于伪相关函数的多级电平编码符号信号通用无模糊跟踪方法. 必威体育下载 , 2017, 66(13): 139101.doi:10.7498/aps.66.139101
[6]	李振兴, 李珂, 沈俊, 戴巍, 高新强, 郭小惠, 公茂琼.室温磁制冷技术的研究进展. 必威体育下载 , 2017, 66(11): 110701.doi:10.7498/aps.66.110701
[7]	高新强, 沈俊, 和晓楠, 唐成春, 戴巍, 李珂, 公茂琼, 吴剑峰.耦合高压斯特林制冷效应的复合磁制冷循环的数值模拟. 必威体育下载 , 2015, 64(21): 210201.doi:10.7498/aps.64.210201
[8]	员江娟, 陈铮, 李尚洁.双模晶体相场研究形变诱导的多级微结构演化. 必威体育下载 , 2014, 63(9): 098106.doi:10.7498/aps.63.098106
[9]	吕金光, 梁静秋, 梁中翥.多级反射镜阵列Monte Carlo法误差合成与统计分析. 必威体育下载 , 2012, 61(22): 220701.doi:10.7498/aps.61.220701
[10]	李飞, 肖刘, 刘濮鲲, 袁广江, 易红霞, 万晓声.行波管中多级降压收集极效率评估的研究. 必威体育下载 , 2012, 61(10): 102901.doi:10.7498/aps.61.102901
[11]	王波, 梁中翥, 孔延梅, 梁静秋, 付建国, 郑莹, 朱万彬, 吕金光, 王维彪, 裴舒, 张军.用于微型光谱仪的硅基多级微反射镜设计与制作研究. 必威体育下载 , 2010, 59(2): 907-912.doi:10.7498/aps.59.907
[12]	秦明, 许建平.开关变换器多级脉冲序列控制研究. 必威体育下载 , 2009, 58(11): 7603-7612.doi:10.7498/aps.58.7603
[13]	张姗, 吴福全, 吴闻迪.多级石英晶体旋光光学滤波器的滤波特性. 必威体育下载 , 2008, 57(8): 5020-5026.doi:10.7498/aps.57.5020
[14]	杨宇光, 温巧燕, 朱甫臣.基于纠缠交换的多方多级量子密钥分配协议. 必威体育下载 , 2005, 54(12): 5544-5548.doi:10.7498/aps.54.5544
[15]	付遵涛, 刘式适, 刘式达.一类非线性演化方程的新多级准确解. 必威体育下载 , 2003, 52(12): 2949-2953.doi:10.7498/aps.52.2949
[16]	魏计林, 张立敏, 俞书勤, 蒋志平.超高斯光束截割对多级电离产额的影响. 必威体育下载 , 2002, 51(1): 42-48.doi:10.7498/aps.51.42
[17]	孟继宝, 陈兆甲, 雒建林, 白海洋, 汪卫华, 郑萍, 张杰, 苏少奎, 王玉鹏.重费密子系统CeCu6-xNix的极低温电阻研究. 必威体育下载 , 2001, 50(8): 1632-1636.doi:10.7498/aps.50.1632
[18]	黄洪斌.抽运统计对多级联双光子关联自发辐射激光器噪声的影响(Ⅰ). 必威体育下载 , 1995, 44(4): 545-551.doi:10.7498/aps.44.545
[19]	刘劲松.基于双光束耦合的多级相干光放大. 必威体育下载 , 1993, 42(9): 1459-1462.doi:10.7498/aps.42.1459
[20]	李钰, 西门纪业.多级聚焦-偏转复合系统的相对论象差理论. 必威体育下载 , 1982, 31(5): 604-614.doi:10.7498/aps.31.604

计量

文章访问数:3353
PDF下载量:140
被引次数:0

搜索

留言板