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公开(公告)号：US5553114A
公开(公告)日：1996-09-03
申请号：US222780
申请日：1994-04-04
IPC分类号： H01J35/10
CPC分类号： H01J35/105 , H01J35/101 , H01J2235/1204 , H01J2235/1229
摘要： An improved high performance x-ray system having a rotating anode therein which includes an improved coating for the x-ray tube rotor. The surface of the x-ray tube rotor is coated with a ductile, metal coating, preferably iron, having a thickness of about 0.2 to about 5.0 mils thick. The rotor coating has ductile properties with a strain to fail greater than 0.05% and thermal expansion properties which when placed on an x-ray tube rotor, provides at least about 40,000 x-ray scan-seconds prior to tube failure due to rotor spalling.
摘要翻译： 一种其中具有旋转阳极的改进的高性能x射线系统，其包括用于X射线管转子的改进的涂层。 X射线管转子的表面涂覆有具有约0.2至约5.0密耳厚度的厚度的延性金属涂层，优选铁。 转子涂层具有韧性，其应变失效大于0.05％，当放置在X射线管转子上时，热膨胀性能在由于转子剥落引起的管故障之前提供至少约40,000次X射线扫描秒。
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公开(公告)号：US4065788A
公开(公告)日：1977-12-27
申请号：US656413
申请日：1976-02-09
CPC分类号： H04N5/2173 , H04N5/142
摘要： An image formed on an array of photosensitive elements is scanned and stored. A defocussed image is scanned and subtracted from the stored signals. The frame-to-frame subtractive algorithm permits simultaneous image enhancement and elimination of sensor induced noise. Required storage capacity is reduced by separately storing the high frequency information-bearing components and the low frequency components of the video.
摘要翻译： 扫描并存储在感光元件阵列上形成的图像。 扫描图像并从存储的信号中减去。 帧到帧减法算法允许同时的图像增强和消除传感器引起的噪声。 通过分别存储视频的高频信息承载组件和低频分量来减少所需的存储容量。
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公开(公告)号：US4870672A
公开(公告)日：1989-09-26
申请号：US89402
申请日：1987-08-26
申请人： Richard W. Lindberg
发明人： Richard W. Lindberg
CPC分类号： H01J35/105 , H01J35/08
摘要： A fused metal oxide ceramic coating is disclosed for application in a particular region of the target employed in an x-ray tube. The disclosed ceramic coating enhances the thermal emittance of a refractory metal target and comprises the fused product of a metal oxide physical mixture comprising Al.sub.2 O.sub.3, ZrO.sub.2, and TiO.sub.2 which exhibits a minimum melting point of approximately 1580.degree. C. A preferred ceramic coating comprises from about 40 weight percent up to about 70 weight percent TiO.sub.2, from about 20 weight percent up to about 40 weight percent ZrO.sub.2, and from about 10 weight percent up to about 20 weight percent Al.sub.2 O.sub.3. A process for the in situ preparation of said ceramic coating is also disclosed along with a particular rotating type x-ray tube and radiographic imaging system employing said improved target.
摘要翻译： 公开了熔融金属氧化物陶瓷涂层用于在x射线管中使用的靶的特定区域中。 所公开的陶瓷涂层增强了难熔金属靶的热辐射率，并且包括包含Al 2 O 3，ZrO 2和TiO 2的金属氧化物物理混合物的熔融产物，其表现出最低熔点为约1580℃。优选的陶瓷涂层包含约 40重量％至多约70重量％的TiO 2，约20重量％至约40重量％的ZrO 2和约10重量％至约20重量％的Al 2 O 3。 还公开了用于原位制备所述陶瓷涂层的方法以及采用所述改进的靶的特定旋转型X射线管和射线照相成像系统。
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