Dewar cryopumping using barium oxide composite for moisture removal
    1.
    发明授权
    Dewar cryopumping using barium oxide composite for moisture removal 失效
    使用氧化钡复合材料进行除湿的杜瓦低温泵

    公开(公告)号:US4886240A

    公开(公告)日:1989-12-12

    申请号:US260168

    申请日:1988-10-20

    Inventor: Benjamin K. Rich

    Abstract: A non-evacuated dewar 10 advantageously employs a molecular sieve 30 that serves to adsorb gasses in the dewar when cooled during operation of the detector 24 thereby preventing liquid formation onto the detector. The effects of outgassing and permeation during storage are substantially eliminated because the dewar package is in partial pressure equilibrium with its environment since the interior of the dewar is backfilled with the same inert gas as is in the surrounding outside environment. A desiccant 40 made of a barium oxide/RTV silicone rubber composite may be used to adsorb moisture which may permeate into the housing.

    Abstract translation: 非抽真空的杜瓦10有利地使用分子筛30,其用于在检测器24的操作期间冷却时吸附杜瓦瓶中的气体,从而防止液体形成到检测器上。 由于杜瓦瓶的内部与周围的外部环境中相同的惰性气体回填,杜兰瓶与其环境处于分压平衡状态,因此基本上消除了储存期间除气和渗透的影响。 可以使用由氧化钡/ RTV硅橡胶复合材料制成的干燥剂40来吸收可渗透到壳体中的水分。

    Dewar cryopumping using molecular sieve
    2.
    发明授权
    Dewar cryopumping using molecular sieve 失效
    使用分子筛的杜瓦低温泵

    公开(公告)号:US4950421A

    公开(公告)日:1990-08-21

    申请号:US260169

    申请日:1988-10-20

    CPC classification number: G01J5/061 F25D19/006

    Abstract: A non-evacuated dewar 10 advantageously employs a molecular sieve 30 that serves to adsorb gasses in the dewar when cooled during operation of the detector 24 thereby preventing liquid formation onto the detector. The effects of outgassing and permeation during storage are substantially eliminated because the dewar package is in partial pressure equilibrium with its environment since the interior of the dewar is backfilled with the same inert gas as is in the surrounding outside environment. A second molecular sieve 40 may be used to adsorb moisture which may permeate into the housing.

    Abstract translation: 非抽真空的杜瓦10有利地使用分子筛30,其用于在检测器24的操作期间冷却时吸附杜瓦瓶中的气体,从而防止液体形成到检测器上。 由于杜瓦瓶的内部与周围的外部环境中相同的惰性气体回填,杜兰瓶与其环境处于分压平衡状态,因此基本上消除了储存期间除气和渗透的影响。 第二分子筛40可以用于吸附可渗透到壳体中的水分。

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