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公开(公告)号：US4866748A
公开(公告)日：1989-09-12
申请号：US232250
申请日：1988-08-15
IPC分类号： H01J35/10
CPC分类号： H01J35/101 , H01J2235/1013 , H01J2235/1066
摘要： An x-ray rotor structure wherein a target support stem has an externally threaded end portion brazed to an internally threaded surface of an encircling bushing which is provided with a barrier layer of oxidation restricting material. The stem is made of predominantly molybdenum material and the bushing is made of iron cobalt nickel alloy material having therein a small percentage by weight of titanium. The barrier layer comprises a layer of substantially pure nickel material which coats the entire inner surface of the bushing including the internally threaded portion thereof. Thus, the titanium is restricted from leaching to the surface during brazing and forming oxides which prevent the surface from being completely wetted by the brazing material. As a result, during brazing, the liquified brazing material alloys with the nickel material of the barrier layer to wet the inner surface of the bushing completely. Consequently, upon cooling, the alloyed brazing material and the nickel material of the barrier layer constitute an interlocking layer forming a durable brazed joint for fixedly attaching the bushing to the stem.
摘要翻译： 一种X射线转子结构，其中目标支撑杆具有钎焊到环绕衬套的内螺纹表面的外螺纹端部，该环形衬套设置有氧化限制材料的阻挡层。 杆主要由钼材料制成，衬套由铁钴镍合金材料制成，其中钛的重量百分比很小。 阻挡层包括基本上纯的镍材料层，其覆盖包括其内螺纹部分的衬套的整个内表面。 因此，在钎焊期间限制钛被浸出到表面，并且形成防止表面被钎焊材料完全润湿的氧化物。 结果，在钎焊期间，液化的钎焊材料与阻挡层的镍材料合金以完全润湿衬套的内表面。 因此，在冷却时，合金钎焊材料和阻挡层的镍材料构成互锁层，形成耐用的钎焊接头，用于将套管固定在杆上。
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公开(公告)号：US4162115A
公开(公告)日：1979-07-24
申请号：US898009
申请日：1978-04-20
申请人： James R. Caraher
发明人： James R. Caraher
CPC分类号： H01J1/54 , H01J29/38 , H01J31/501 , H01J9/12
摘要： An image intensifier tube comprising a sealed envelope having therein means for controllably liberating oxygen within the envelope, and an iput screen including an oxygen conditioned layer of fluorescent material and an overlying layer of photoemissive material which may be oxidized to improve the photo-to-electron conversion efficiency of the input screen.A method of improving the conversion efficiency of an image intensifier tube input screen including the steps of exposing a layer of fluorescent material to oxygen prior to the deposition of an overlying layer of photoemissive material, and subsequently exposing the layer of photoemissive material to oxygen, if desired, after the tube envelope has been sealed.
摘要翻译： 一种图像增强管，包括密封外壳，其中具有用于可控地释放外壳内的氧的装置，以及包括荧光材料的氧调节层和可被氧化以改善光电子的覆盖层的覆盖层的输入屏幕 输入屏幕的转换效率。
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公开(公告)号：US4147950A
公开(公告)日：1979-04-03
申请号：US784207
申请日：1977-04-04
IPC分类号： H01J9/22 , H01J1/54 , H01J9/12 , H01J9/233 , H01J29/38 , H01J31/50 , H01J61/24 , H01J39/02 , H01J61/28
CPC分类号： H01J9/12 , H01J1/54 , H01J29/38 , H01J31/501
摘要： An image intensifier tube comprising a sealed envelope having therein means for controllably liberating oxygen within the envelope, and an input screen including an oxygen conditioned layer of fluorescent material and an overlying layer of photoemissive material which may be oxidized to improve the photon-to-electron conversion efficiency of the input screen.A method of improving the conversion efficiency of an image intensifier tube input screen including the steps of exposing a layer of fluorescent material to oxygen prior to the deposition of an overlying layer of photoemissive material, and subsequently exposing the layer of photoemissive material to oxygen, if desired, after the tube envelope has been sealed.
摘要翻译： 一种图像增强管，其包括密封外壳，其中具有用于可控地释放外壳内的氧气的装置，以及包括荧光材料的氧调节层和可被氧化以改善光子到电子的上覆层的输入屏幕 输入屏幕的转换效率。
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公开(公告)号：US4396853A
公开(公告)日：1983-08-02
申请号：US179190
申请日：1980-08-18
申请人： James R. Caraher
发明人： James R. Caraher
CPC分类号： H01J31/501 , H01J1/54 , H01J29/38 , H01J29/94 , H01J9/12
摘要： An image intensifier tube comprising a sealed envelope having therein means for controllably liberating oxygen within the envelope, and an input screen including an oxygen conditioned layer of fluorescent material and an overlying layer of photoemissive material which may be oxidized to improve the photon-to-electron conversion efficiency of the input screen.A method of improving the conversion efficiency of an image intensifier tube input screen including the steps of exposing a layer of fluorescent material to oxygen prior to the deposition of an overlying layer of photoemissive material, and subsequently exposing the layer of photoemissive material to oxygen, if desired, after the tube envelope has been sealed.
摘要翻译： 一种图像增强管，其包括密封外壳，其中具有用于可控地释放外壳内的氧气的装置，以及包括荧光材料的氧调节层和可被氧化以改善光子到电子的上覆层的输入屏幕 输入屏幕的转换效率。 一种提高图像增强管输入屏幕的转换效率的方法，包括以下步骤：在沉积光致发光材料的上层之前将荧光材料层暴露于氧气，并且随后将所述光发射材料层暴露于氧，如果 在管外壳被密封之后。
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公开(公告)号：US4243904A
公开(公告)日：1981-01-06
申请号：US911857
申请日：1978-06-02
申请人： James R. Caraher
发明人： James R. Caraher
CPC分类号： H01J31/501
摘要： An image intensifier tube comprising an evacuated envelope wherein two spaced electrodes are insulatingly secured to one another by a dielectric member having an end portion extended within closely spaced walls of a hollow conductive shielding means attached to one of the electrodes for protecting the end portion from conductive vaporous material released within the envelope during processing and from resulting voltage breakdown during operation of the tube.
摘要翻译： 一种包括真空外壳的图像增强管，其中两个间隔开的电极通过电介质构件绝缘地彼此固定，电介质构件具有延伸在连接到电极之一的中空导电屏蔽装置的紧密隔开的壁的紧密间隔壁内的端部，用于保护端部不导电 在处理期间在封套内释放的气态材料以及在管的操作期间由此产生的电压击穿。
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