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    • 40. 发明申请
    • Low temperature probe for NMR and NMR device
    • 用于NMR和NMR装置的低温探针
    • US20070096740A1
    • 2007-05-03
    • US11493819
    • 2006-07-27
    • Yuzo FukudaHiromitsu SeinoKazuo SaitohHiroyuki TanakaTsuyoshi WakudaNorihide SahoMichiya Okada
    • Yuzo FukudaHiromitsu SeinoKazuo SaitohHiroyuki TanakaTsuyoshi WakudaNorihide SahoMichiya Okada
    • G01V3/00
    • G01R33/30
    • The invention provides a low temperature probe having a high sensitivity by reducing a heat intrusion into a receive coil. A heat making an intrusion into a coil is suppressed by inserting a heat radiation shield in which a temperature is controlled at about 100 K to a portion between an outer container of a probe and a coil portion. A heat radiation shield bore sleeve is provided in a heat radiation bore, is connected to the heat radiation shield, and is cooled by a second heat exchanger. Further, the coil portion is cooled by a first heat exchanger. In preparation for a contraction at a time of being cooled, the outer container, the heat radiation shield and the coil portion are connected by using a fixing portion, and a heat relieving mechanism or a contraction relieving mechanism is provided in a root side (an opposite side to the fixing portion) of the heat radiation shield and the coil portion. The fixing portion is formed in a shape and made of a material having a small heat intrusion amount and having a small heat contraction.
    • 本发明通过减少对接收线圈的热侵入来提供具有高灵敏度的低温探针。 通过将温度控制在约100K的热辐射屏蔽物插入到探针的外部容器与线圈部分之间的部分来抑制进入线圈的热量。 热辐射屏蔽孔套筒设置在散热孔中,连接到散热屏蔽,并由第二热交换器冷却。 此外,线圈部分由第一热交换器冷却。 为了准备冷却时的收缩,通过使用固定部连接外容器,散热屏蔽体和线圈部,并且在根侧设置有放热机构或收缩解除机构 热辐射屏蔽体和线圈部分相对于固定部分的相对侧)。 固定部形成为由热侵入量小且热收缩小的材料构成。