CN201164473Y - Portable X-ray equipment - Google Patents

Portable X-ray equipment Download PDF

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CN201164473Y
CN201164473Y CNU200720173220XU CN200720173220U CN201164473Y CN 201164473 Y CN201164473 Y CN 201164473Y CN U200720173220X U CNU200720173220X U CN U200720173220XU CN 200720173220 U CN200720173220 U CN 200720173220U CN 201164473 Y CN201164473 Y CN 201164473Y
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ray
image intensifier
portable
ray machine
camera
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CNU200720173220XU
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Chinese (zh)
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肖桂里
肖加明
肖加志
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肖桂里
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Abstract

The utility model provides a portable X-ray machine which includes an X-ray generator, a lead protecting cover being arranged on the circumference of an X-ray tube, and an opening and an X-ray collimator pointing to an X-ray outlet; an X-ray image intensifier which is assembled in a vacuum glass tube by the order that a photocathode, an electron multiplier plate, and a fluorescent screen which are insulated from each other, the vacuum glass tube arranged in the aluminum protecting cover which is provided with a window at the side of the fluorescent screen in the vacuum glass tube, and an aluminum glass plate is arranged on the position of the window. The X-ray image intensifier is arranged on an image intensifier bracket; a motor of a scanner causes the X-ray image intensifier to implement translation by a driving wheel, a screw rod guideway, and the image intensifier bracket; a digital camera of a collector is arranged outside a camera obscura, and the focus of the digital camera aims at the fluorescent screen in the X-ray image intensifier; the X-ray generator, the scanner and the collector are electrically connected with a controller. All the parts of the X-ray machine are integrated into an integer by that the X-ray generator is fixed on the lower part outside a square part of the camera obscura by two connecting rods.

Description

一种便携式X光机技术领域本实用新型涉及一种x光机,详细地说,涉及一种便携式x光机。 A portable X-ray machine Technical Field The present invention relates to an x-ray machine, specifically, to a portable x-ray machine. 背景技术x光机作为诊断和检测手段,是一门应用十分广乏的实用技术。 Background x-ray machine as a diagnostic and testing tools, is a practical technology application is very wide and needy. 一百多年来,这一技术有了飞跃的发展。 A hundred years, this technology leap in development. 主要表现在二个方面: 一是X射线的产生技术;二是检测结果的获取和处理技术。 Mainly in two aspects: First, X-ray generation technology; the second is the detection result of acquisition and processing techniques. 在今天,检测结果的获取和处理技术巳经成为光机发展的核心和关键,是区分X光机类别的重要特征。 Today, the detection result of acquisition and processing technology has become, the core and key light machine development, is an important feature to distinguish between X-ray machine category. 目前具有代表性的X光机类型有:1) 传统x光机。 Current representative X-ray machine types: 1) a conventional x-ray machine. 它是直接用胶片获取检测结果。 It is to obtain a detection result of the film directly. 其特点是仪器简单易操作,探测面积大(只受限于胶片尺寸)。 Its characteristics are easy to operate instruments, large detection area (limited only by the size of the film). 它的最大缺点是X射线剂量大,对人伤害大。 Its biggest drawback is the large X-ray dose, to hurt big. 另外其探测结果的处理劳动强度也大,还容易出错。 Further processing labor intensity detection result thereof is also large, but also prone to error. 这种仪器正逐渐被淘汰。 This instrument is gradually being phased out. 2) 高功能X射线像增强器(俗称大头管)X光机。 2) high-performance X-ray image intensifier (commonly known as bulk tube) X-ray machine. 大头管是由光阴极、电子压缩系统、微通道电子倍增板(MCP)及荧光屏组成。 A photocathode tube is made of bulk, compression system electronics, micro-channel plate electron multiplier (MCP) and the screen composition. 被检测结果经大面积的光阴极转换成电子,然后压縮、放大、显示在小面积荧光屏上,最后用光学系统放大恢复到原来大小,用胶片拍摄,也可用数码摄像机采集并数字化。 A detection result by the time the large-area electrodes into electrical, then compressed, zoom, small area displayed on the screen, an enlarged optical system finally restored to its original size, shot on film, may also be captured and digitized, the digital video camera. 这种X光机与传统X光机相比,首先是所需的X射线剂量有较大的降低,仅为它的1/10。 This compared with a conventional X-ray machine X-ray machine, is first required to have a greater X-ray dose reduction, it is only 1/10. 其次是空间分辨为4.5 pl/mm和动态范围为70-100都有所提高。 Followed by spatial resolution of 4.5 pl / mm and a dynamic range of 70-100 are improved. 检测结果数字化,使储存、传输更方便可靠。 Digital detection result, so that the storage, transport easier and more reliable. 必要时还可用计算机作进一步处理,可获得更多的有用信息。 If necessary, the computer can be used for further processing, for more useful information. 这种X光机的缺点是大头管制造工艺复杂,难度大,做大更难,最大探测面积为圆形, 直径为50cm。 This disadvantage is the bulk of the X-ray tube manufacturing process complex and difficult, more difficult to expand, the maximum detection area is circular, a diameter of 50cm. 这种X光机体积大、笨重且造价高,但目前它巳成为大医院中使用的主要类型。 This X-ray machines are bulky, heavy and high cost, but it had become the main type used in large hospitals. 3) 直接数字化X光机。 3) direct digital X-ray machine. 这种光机在我国是在99年才制出的一种新型机。 This ray machines in our country in 99 years before made a new type of machine. 这种X光机用特制的多丝正比室作为X射线像增强器,其灵敏度非常高。 This X-ray machine with a special multi-wire proportional chamber as the X-ray image intensifier, a very high sensitivity. 这种X光机的特点有:所需X射线剂量仅为传统X光机的1/30-1/100;动态范围为150;探测面积可达到120cm*40cm;检测结果直接数字化,其内容、层次更加丰富。 Such characteristic X-ray machine are: X-ray dose required for a conventional X-ray machine is only 1 / 30-1 / 100; 150 dynamic range; detecting area up to 120cm * 40cm; direct digital detection result, the content, richer level. 空间分辨不高(1.4-2.5 pl/mm)。 Spatial resolution is not high (1.4-2.5 pl / mm). 其主要缺点是多丝正比室制造不易,造价高。 Its main drawback is difficult to manufacture a multi-wire proportional chamber, a high cost. 另外由于采用扫描方式,它不能进行如心脏造影需要短时间成像的检査。 Further since the scanning mode, it can not be checked, such as cardiac imaging requires a short time imaging. 检测结果需要经计算机用专用软件进行图像重构操诈作人员必须具有一定的计算机和软件理论水平。 Requires the detection result by the computer with special software for image reconstruction Zhazuo operator must have a certain level of theory and computer software. 这种X光机体积也大、笨重且造价高,现巳在多家大医院中使用。 This X-ray machine volume is large, heavy and high cost, now have been used in a number of large hospitals. 4)低剂量便携议式X光机。 4) low dose propose a portable X-ray machine. 这种X光机是用由Csl光阴极,MCP和荧光屏组成的X射线像增强器,它与大头管和多丝正比室相比,其制造工艺简单、容易且造价低。 This X-ray machine with an X-ray image intensifier by the Csl photocathode, MCP and phosphor screen composed of a multi-wire proportional chamber, and it is compared with the bulk of the tube, the manufacturing process is simple, easy and low cost. 它所需要的X射线剂量仅为传统X光机的1/10、 空间分辨为4 pl/mm~4.5 pl/mm、动态范囲为70-100。 X-ray dose it needs only 1/10 of a conventional X-ray machines, spatial resolution of 4 pl / mm ~ 4.5 pl / mm, the dynamic range Tong 70-100. 这种X光机的性能不错,而最大特点是轻巧,携带使用方便且造价低,其缺点也是致命弱点是探测面积受MCP尺寸所限,目前最大探测面积为园形,直径为10cm, 而且成品率不高。 This X-ray machine's performance is good, but the most important feature is lightweight, portable and easy to use and low cost, the drawback is the Achilles' heel of the detection area is limited by the size of the MCP, the largest detection area is circular with a diameter of 10cm, and finished rate is not high. 一般探测面积只有直径为5 cm和7.5 cm,因此使这种X 光机的应用范围受到很大的限制。 General area of ​​only the probe having a diameter of 5 cm and 7.5 cm, so that the scope of application of this X-ray machine is greatly limited. 实用新型内容本实用新型的目的是克服上述背景技术中存在的缺陷,提供一种大探测面积和超低剂量的便携式X光机。 SUMMARY The present invention aims to overcome the drawbacks present in the above-described background art, and to provide a large detection area of ​​the ultra low dose of the portable X-ray machine. 为实现上述目的,本实用新型提供的便携式X光机,包括: 一X射线发生器,在X射线发生器的小焦点微型X射线管周围,设置铅防护罩,该铅防护罩在X射线管的X射线出口处有一窄长条形开口,该开口处的外侧还装有一铅制的X射线准直器;该X射线管电性连接一电源;一X射线像增强器,依光阴极、电子倍增板和荧光屏顺序相互绝缘地平行排列组装在真空玻璃管中;光阴极与电子倍增板均为微通道电子倍增板;真空玻璃管中装有消气剂,并从真空玻璃管中分别引出电子倍增板、 荧光屏和消气剂的电源接线及地线,均电性连接电源;真空玻璃管置于一铝保护罩内,该铝保护罩在真空玻璃管内的荧光屏的一侧设有一窗口,该窗口处设有一铅玻璃板。 To achieve the above object, the present invention provides a portable X-ray machine, comprising: an X-ray generator, around the small micro-focus X-ray generator, an X-ray tube, and then a lead shield, the shield lead in the X-ray tube X-rays has a long and narrow strip at the outlet opening, the outside opening is also equipped with a leaden X-ray collimator; the X-ray tube is electrically connected to a power source; an X-ray image intensifier, by very time, arranged parallel to each plate insulated from the electron multiplier and the phosphor screen in the order of assembly of a vacuum glass tube; photocathode and the electron multiplying microchannel plate electron multiplier plates are; evacuated glass tubes containing getter, and electrons are drawn out from the vacuum glass tube multiplying the power supply wiring and the ground plate, and a phosphor screen getters are electrically connected to a power source; vacuum glass tube placed in a protective cover of aluminum, the aluminum side of the screen in the vacuum glass tube protective cover is provided with a window that the glass plate is provided with a lead. X射线像增强器安装在像增强器支架上;一扫描器,为一驱动装置,其中马达的驱动轮与螺杆导轨连接;该螺杆导轨装有像增强器支架,像增强器支架和螺杆导轨装在暗箱内;一采集器,其中照相机,装在暗箱外,该照相机的焦点对准于x射线像增强器内的荧光屏;X射线发生器通过两根联杆固定在暗箱的底部,从而使本X光机各个部分联成一体。 The X-ray image intensifier image intensifier mounted on a holder; a scanner as a drive means, wherein the motor is connected to drive wheel guide screw; screw the rail holder with image intensifier, image intensifier and the screw guide bracket means in the black box; a collector, wherein the camera, installed outside the black box, the focus of the camera is aligned within the x-ray image intensifier phosphor screen; x-ray generator through the bottom of the dark box is fixed to two link, so that this each part into one X-ray machine. 上述X射线发生器、电源、扫描器及采集器电性连接一控制器。 The X-ray generator, a power supply, a scanner and a collector electrically connected to the controller. 所述的便携式X光机,其中X射线像增强器内作为光阴极和电子倍增板的微通道电子倍增板为多片连接。 The portable X-ray machine, wherein the X-ray image intensifier photocathode and a microchannel plate electron multiplier plate electron multiplier is a multiple chip connection. 所述的便携式X光机,其中微通道电子倍增板的连接处为30-60度的倾斜状。 The portable X-ray machine, which is connected at the microchannel plate electron multiplier is inclined 30-60 degrees. 所述的便携式X光机,其中微通道电子倍增板的连接处为45度的倾斜状。 The portable X-ray machine, which is connected at the microchannel plate electron multiplier is inclined 45 degrees. 所述的便携式X光机,其中荧光屏为导电玻璃片上喷涂荧光粉。 The portable X-ray machine, wherein a phosphor coating on the screen is a conductive glass. 所述的便携式X光机,其中照相机为数码相机。 The portable X-ray machine, wherein the camera is a digital camera. 所述的便携式X光机,其中数码相机连接一计算机。 The portable X-ray machine, a digital camera wherein the computer. 本实用新型具有的积极效果如下:1) 超低剂量X射线。 The present invention has positive effects as follows: 1) ultra low dose X-rays. 本实用新型所需要的射线剂量只有传统X光机的几十分之一,大大地减小了对人伤害。 This new utility-ray dose needed only a few one-tenth of the traditional X-ray machines, greatly reducing the harm to people. 本实用新型在产生X射线的X 射线管周围设有铅防护罩。 Around the X-ray tube of the present invention is provided with an X-ray generating a lead shield. 铅防护罩只在X射线射出方向有一窄长的开口,开口的外侧还装有铅制准直器。 Lead shields only a long narrow opening in the direction of the X-ray emission, the outside opening is also equipped with a collimator of lead. 从铅制准直器射出的X射线直对着X 射线像增强器,而其它方向散射的X射线很弱。 Emitted from the X-ray collimator of lead straight into an X-ray image intensifier, and the other direction of scattered X-rays is weak. 操作人员是远离X光机(大于一米)进行操作,其散射X射线更小,对探操作人员几乎没有伤害。 The operator is away from the X-ray machine (more than one meter) operates, which is smaller scattered X-rays, almost no damage to the probe operator. 操作人员可以在没有任何防护措施条件下工作。 The operator can work without any protective measures under the conditions. 2) 图像清晰质量高。 2) high-definition picture quality. 本实用新型的X射线像增强器在常规条件下, 空间分辨可达到4,5 pl/mm。 The present invention an X-ray image intensifier under conventional conditions, the spatial resolution can reach 4,5 pl / mm. 且由于本实用新型的射线为一长窄缝,并经过准直器准直,这又减少了散射射线对图像的不良影响,图像质量又有所提高。 And since the present invention is a long slit ray, and collimated through a collimator, which in turn reduces the adverse effects of scattered radiation on the image, the image quality are rising. 由数码相机采集的图像还可输入计算机作进一步处理,如图像局部放大、正反转、灰度调节、图像边缘化处理、图像定位和标注等,可使图像质量得到进一步提高,从而可以提高诊断水平。 Acquired by the digital camera image may also be input into a computer for further processing, such as enlarged images, reversing, gamma adjustment, marginalization image processing, image positioning, and dimensions, image quality can be further improved, which can improve the diagnosis Level. 这些有用资料可以储存6或打印,也可联网,实现远程诊断、教育和资料共享。 These useful data can be stored or printed 6, can also be networked, remote diagnostics, education and information sharing. 3) 探测面积原则上没有限制。 3) There is no limit on the principle of detection area. 本实用新型的探测面积是由X射线像增强器的长度和扫描长度所决定。 The present invention is determined by detecting the length of the area and the length of the scanning X-ray image intensifier. X射线像增强器的长度可以选定,也可将多个像增强器串连使用。 X-ray image intensifier can be selected length, may be used in series a plurality of image intensifier. 而扫描长度很容实现任意选定。 Receiving the scanning length is arbitrary chosen. 因此,本实用新型的探测面积可以根据需要选定。 Accordingly, the present invention probe area can be selected as desired. 4) 体积小重量轻携带方便。 4) Small size and light weight and easy to carry. 本实用新型因所需要X射线的剂量小,因此可以采用小焦点微型X射线管和相配的小型供电电源组成X射线发生器。 The present invention is required due to a small dose of X-rays, can be a small micro-fine focus X-ray tube and power supply to match the composition of the X-ray generator. X射线像增强器也仅是4.5cn^4.5cm的方形管,这些主要部件都体积小,重量轻。 The X-ray image intensifier it is only 4.5cn ^ 4.5cm square tubes, which are the main components of small size and light weight. 整机可装入一手提箱中,携入患者家中对患者进行诊断, 十分方便。 The machine can be loaded into a suitcase, carried into the patient's home to diagnose a patient, it is very convenient. 附图说明图1是本实用新型的主视图。 BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a front view of the present invention. 图2是图1中X射线发生器的主体剖面图。 FIG 2 is a cross-sectional view of the main body 1 in the X-ray generator. 图3是图1中X射线像增强器的剖面图。 3 is a sectional view of an X-ray image intensifier. 图4是图1中扫描器示意图。 Figure 4 is a schematic diagram of the scanner. 具体实施方式本实用新型采用长形X射线像增强器,通过扫描方式获得大的探测面积(探测面积原则上没有限制,除可选定不同长度的像增强器外,也可多个像增强器串连使用,扫描长度可根据需要选择,所以可获得所需要的探测面积)。 DETAILED DESCRIPTION The present invention uses an elongated X-ray image intensifier, a large detection area is obtained by scanning (detection principle there is no limitation on the area, except for different lengths may be selected image intensifier, the image intensifier may be a plurality of used in series, the scanning length can be selected according to the probe so as to attain the desired area). 本实用新型中的长形X射线像增强器是由光阴极、MCP和荧光屏组成。 In the present invention, an elongated X-ray image intensifier by the photocathode, MCP and phosphor screen composition. 光阴极采用商品化的MCP替代Csl作为光阴极。 MCP photocathode commercial use as an alternative Csl photocathode. 这种像增强所需的X 射线剂量仅为传统X光机的1/20-1/50;空间分辨可达到4.5 pl/mm;动态范围为70-100。 Such an X-ray image intensifier dose required only 1 / 20-1 / 50 of the conventional X-ray machine; spatial resolution up to 4.5 pl / mm; dynamic range of 70-100. 作为光阴极的MCP和作为电子倍增的MCP的宽度, 一般选定为1 cm (也可根据需要选定,当要求进行如心脏造影需要短时间成像的检査时,其宽度越宽越好。另宽度越宽,对接缝对图像影响也越小)。 As MCP photocathode and the electron multiplier as the width of the MCP, and is generally selected to be 1 cm (can also be selected according to need, such as when examination is required for imaging cardiac imaging requires a short time, the wider the width, the better. another wider the width, the influence on the image of the smaller joint). 其长度受限于MCP,很难做到超过15cm。 Its length is limited by the MCP, difficult to achieve more than 15cm. 为了实现大的探测面积,要求长形X射线像增强器20有相应的长度,为此采用了将多片MCP对接的方法来得到所需要的长度(必要时,也可用数个长形x射线像增强器串联起来使用)。 In order to achieve a large detection area, elongated in claim 20, the X-ray image intensifier has the appropriate length, the method used for this purpose a plurality of abutting sheet MCP to give the desired length (if necessary, can also be used a number of elongated x-ray image intensifier use in series). 对接缝为应倾斜状,以减小对接缝对检测结果的严重影响。 Seam to be inclined to reduce the serious impact on the detection result of the seam. 对接处(或缝)的倾斜度可在30-60度范围内选定,综合各种因素考虑以45 度为最好。 Docking at an inclination (or slot) can be selected in the range of 30-60 degrees, considering various factors of 45 degrees is best. 用商品化的MCP替代常规的光阴极,不仅使制造工艺简化, 而且又避免了Csl光阴极在制造过程中常出现不均匀和很容易损坏的缺点,使质量和成品率都有所提高。 MCP replace conventional commercial electrodes with time, not only to simplify the manufacturing process, and also avoids the disadvantages of Csl photocathode uneven and easily damaged during the manufacturing process often, so that the quality and yield are improved. 本实用新型中所使用的荧光屏的制造工艺是在商品化的导电玻璃片上喷涂荧光粉,这比常规的办法-在玻璃片上先喷涂荧光粉,然后在其上真空蒸镀一层导电铝膜相比,不仅制造工艺筒化,而且质量好,成品率高, 完全满足本实用新型X光机的需要。 The manufacturing process of the present invention as used in the phosphor screen is sprayed on the conductive glass commercially available, than the conventional approach - first phosphor coating on the glass sheet and vacuum vapor deposition thereon with a conductive aluminum ratio, not only the manufacturing process of the cylinder, and of good quality, high yield, the present invention fully meet the needs of the X-ray machine. 荧光屏的宽度与长度的选定应与MCP 相同。 Selected width and length of the screen should be the same and MCP. 本实用新型光机的X射线像增强器的外壳是玻璃管,制造容易,且有利于真空处理。 The present invention is an X-ray-ray image intensifier housing is a glass tube, easy to manufacture, and is conducive to the vacuum processing. 玻璃管外加有方形铝罩加以保护。 There is applied to protect the glass tube square aluminum cover. 在铝罩对着荧光屏一侧开有一缺口,在缺口上镶有铅玻璃板,以防止主射线洩漏。 Aluminum hood opening opposite the phosphor screen side has a gap, the gap in the set with a lead glass, to prevent leakage of the primary ray. 本实用新型光机的扫描器,为一驱动装置,其中马达的驱动轮与螺杆导轨连接;该螺杆导轨装有像增强器支架,像增强器支架和螺杆导轨装在暗箱内;本实用新型X光机的检测结果用高分辨数码相机采集并数字化(也可用数码摄像机或胶片拍摄),需要时还可输入计算机对检测结果做进一步处理,不仅可提高质量,还可获得更多的有用信息本实用新型X光机的X射线,是用小焦点微型X射线管和相配的小型供电电源组成的部件所产生,其体积小,重量轻。 An optical scanner of the present invention machine for a driving device, wherein the motor is connected to the drive wheel and the guide rail screw; screw the rail holder with image intensifier, image intensifier and a screw bracket rails mounted within the black box; the present invention X the detection result of acquisition-ray machine with a high-resolution digital cameras and digital (or digital video camera can also be shot on film), but also need to enter the computer when the test results for further processing, not only can improve the quality, but also get more useful information in this invention X-ray machine X-ray, a member with a small micro-focus X-ray tube power supply and matching small consisting generated, its small size and light weight. 为防止射线对人的伤害,在X射线管的周围采用了铅防护罩,仅在对着像增强器的方向开有一长方形的缺口。 In order to prevent radiation injury to persons around the X-ray tube using a lead shield, only in the opposite direction of the image intensifier opening and has a rectangular notch. 缺口宽度和长度的选定应与X射线像增强器的有効长度和宽度相匹配。 Selected gap width and length as the effective length and width should enhancer matches the X-ray. 从缺口出来的X射线再经用铅做的准直器准直,进一步减少散射X射对检测结果质量的不利影响和对人的伤害。 From out of the gap and then by using X-ray collimator made of lead collimator, to further reduce the adverse effects of scattered X-rays to detect the quality of the results and injury to human. 由于X射线是一宽度很窄的长条形并经过准直,且操作人员是通过与X光机有一定距离的控制器进行操作,因此其漏射线很小,操作人员可以在没有任何防护措施的条件下进行操作。 Since the X-rays is a very narrow width and elongated collimated, and is operated by the operator and the X-ray machine controller a certain distance, so that leakage radiation is small, the operator may not have any protective measures under operating conditions. 本实用新型X光机的最大特点是;在全面具有超低X射线剂量、高空间分辨、超大探测面积以及探测结果数字化这些高性能的前提下,又具有体积小巧,重量轻,便于携带,且造价低。 The maximum feature of the invention is the X-ray machine; comprehensive having ultra low X-ray dose, high spatial resolution, high performance of these large detection area, and digitization detection result, but also has small size, light weight, easy to carry, and low cost. 下面结合附图和具体实施方式对本实用新型作进一步详细说明。 Hereinafter, the present invention as described in more detail in conjunction with accompanying drawings and specific embodiments. 图1所述的X光机包括: 一个X射线发生器10、 一亇X射线像增强器20、 一个扫描器30、 一个采集器40和一个控制器50。 FIG. 1 of the X-ray machine comprising: an X-ray generator 10, a Ma X-ray image intensifier 20, a scanner 30, a collector 40 and a controller 50. X射线像增强器装在扫描器的像增强器支架上,扫描器的像增强器支架和螺杆导轨同置于暗箱的方形部分内的下部,扫描器的马达和驱动轮装在暗箱的方形部分外的下部。 The X-ray image intensifier is mounted on the holder of the scanner image intensifier, the image intensifier scanner bracket and the guide rail with a screw placed in the lower part of the inner square of the black box, and the scanner motor drive wheel mounted on a square portion of the dark box the lower outside. 采集器的数码相机装在暗箱的锥形部分的外面,其焦点对准X射线像增强器的荧光屏。 Collector digital camera mounted on the outside of the tapered portion of the camera obscura, which focus the X-ray image intensifier phosphor screen. 控制器50与X射线发生器、扫描器、采集器电性联接,以控制X射线管的高压、X射线像增强器的平移启动或停止、平移速度和方向以及数码相机快门。 The controller 50 and the X-ray generator, a scanner, a collector electrically coupled to control the high voltage of the X-ray tube, an X-ray image intensifier translational start or stop, and direction of translation speed shutter, and digital cameras. X射线发生器通过两根联杆固定暗箱的方形部分外的底部,从而使X光机各亇部分联成一整体。 X-ray generator through the bottom of the square portion of the two outer link fixed black box, so that the X-ray machine with the respective integral portions Ma. 所述X射线发生器10 (参见图2)是用来产生所需的X射线。 The X-ray generator 10 (see FIG. 2) is necessary to produce X-rays. 它是由供电电源16 (图1)产生的高频电压经过变换器11变成高频高压,此高频高压再经高压倍压器15,使高压进一步提高并整流达到所需要的直流高压,联接到小焦点微型X射线管13的阳极上。 It is a high frequency voltage generated by the power supply 16 (FIG. 1) through the frequency converter 11 into a high pressure, this high pressure then by high frequency and high voltage multiplier 15, to further improve the high-voltage DC high voltage rectifier and achieve the desired, an anode coupled to the micro-fine focus X-ray tube 13. 供电电源16同时也给X 射线管13的阴极(即灯丝)供电。 Power supply 16 also to the cathode of the X-ray tube 13 (i.e., filaments) power. 在X射线管13的周围加有铅防护罩14, 仅在铅防护罩14对着X射线出口处,开有一与X射线像增强器20的长宽对应的长条形缺口,此缺口射出的X射线再经过装在铅防护罩14缺口的外侧,用铅做的准直器12准直。 Around the X-ray tube 13 plus the lead shield 14, 14 only in the X-ray shield facing the outlet of the lead, opened with a length and width corresponding to the X-ray image intensifier elongated notch 20, this gap is emitted X-ray and then through notch 14 mounted on the outside of the lead shield, made with lead collimators 12 collimate. 所述的长形X射线像增强器20 (图3)是用来将透过被检测物体的剩余而微弱的X射线转换成电子,经放大,最后轰击荧光屏,在屏上显示出明亮的被检测图像。 Said elongated X-ray image intensifier 20 (FIG. 3) is used to convert the detected object to be transmitted through the remaining weak X-rays into electrons, amplified, and finally bombard the phosphor screen, a bright display is on the screen detection image. 它是由光阴极23 (用MCP替代常规的CsI)、 MCP24 和荧光屏26所组成。 It is composed of a photocathode 23 (in place of a conventional MCP CsI), MCP24 and a phosphor screen 26 composed. . MCP对接缝的两端应极细心地用胶粘连,使其固定。 MCP joints at both ends with an adhesive to be carefully fine even to secure it. 也可在对接好的MCP上、下两端的任一端,用有弹性,绝缘性好的材料做成片(厚度为0.1 cm),使对接缝紧密地保持不变。 May be a good docking in the MCP, the lower ends either end, with a resilient, insulating materials made of good sheet (thickness 0.1 cm), that the seam tightly maintained. 作为光阴极的MCP23和作为电子倍增板的MCP24 (这两种MCP的体电阻应相同,或相差不大于10%)紧密地叠在一起,用上支架25a和中支架25b夹住。 As MCP23 MCP24 a photocathode and an electron multiplier plate (MCP volume resistivity of both should be identical, or differ by no more than 10%) closely stacked together, the upper support brackets 25a and 25b sandwiched. 荧光屏是用与MCP相同的宽度和长度,厚度为0.2 cm的导电玻璃片上喷涂经过筛选的荧光粉而成。 MCP and phosphor screen with the same width and length, a thickness of the conductive coating on the glass after screening 0.2 cm from the phosphor. 此荧光屏用压片固定在下支架25c上。 A phosphor screen fixed to the lower bracket on a tablet 25c. 支架25a、25b和25C的两侧,各用四个陶瓷支柱使其互相绝缘地紧固成组件(作为电子倍增板的MCP与荧光屏的间距为0.2-0.3 cm)。 Brackets 25a, 25b and 25C of the sides, each with four mutually insulated ceramic pillars so fastened into an assembly (as MCP and the phosphor screen pitch of the electron multiplier plate is 0.2-0.3 cm). 该组件装在外径为4 cm (壁厚为Ol cm)、管底部有4根引线柱(分别为荧光屏、MCP、消气剂接供电和接地用)的长玻璃管22中,经真空处理和封装,最后装入方形(4.5 cm + 4.5cm)铝保护罩21中。 The assembly 22 is mounted, the outer diameter of the vacuum processing and packaging 4 cm (wall thickness Ol cm), the bottom of the column there is a lead pipe 4 (the phosphor screen, respectively, MCP, getter connected to a supply and grounding) long glass tube , and finally charged with square (4.5 cm + 4.5cm) aluminum protective hood 21. 保护罩对着荧光屏这面开有一长方形缺口, 大小与荧光屏相同。 Guard against this side of the screen opening has a rectangular notch, with the same size screen. 在保护罩的缺口处镶有一厚度为6mm的铅玻璃板27 (图3)。 Set with the protective cover through a hole in a glass plate having a thickness of 6mm of lead 27 (FIG. 3). 所述扫描器30 (图4)是用来驱动X射线像增强器20,使其实现平移(即扫描)。 The scanner 30 (FIG. 4) is used to drive the X-ray image intensifier 20, so as to achieve the translational (i.e., scan). 马达31通过驱动轮32使螺杆导轨33旋转,从而带动像增强器支架34平移,X射线像增强器20装在像增强器支架34。 Motor 31 by the drive wheel 32 causes the rotation of the screw guide 33, so as to drive the translation image intensifier bracket 34, X-ray image intensifier 20 is mounted in the bracket 34 image intensifier. 像增强器支架34与螺杆导轨33都装暗箱的方形部分内的下部。 Image intensifier in the lower portion of the square portion rail bracket 34 and the screw 33 are installed in the camera obscura. 像增强器支架34 的下端有一短杆伸出暗箱外,通过一联杆与射线发生器的铅防护罩相连, 当X射线像增强器平移时,带淮直器的铅防护罩也相应地旋转,使射线始终对准X射线像增强器。 Image intensifier lower bracket 34 has a short rod extending outside the black box, is connected by a lead shield and a link-ray generator, when the X-ray image intensifier translation, Huai shield lead collimator also rotates correspondingly , always aligned with the radiation X-ray image intensifier. 所述采集器40 (见图1)是由暗箱41、高分辨(500万象素以上)数码相机42和手提计算机43所组成。 The collector 40 (see FIG. 1) is a black box 41, high resolution (500 million pixels) camera and laptop computer 42 composed of 43. X射线像增强器20扫描获得的图像, 由数码相机42采集、数字化和形成一幅完整的图像,显示在液晶屏幕上。 The X-ray image obtained by scanning the image intensifier 20, the acquisition by a digital camera 42, and form a complete digital image displayed on the LCD screen. 需要时,可将结果输入计算机作进一步处理,使图像质量提高和获得更多的有用信息,从而提高了诊断水平。 When needed, the result may be input into a computer for further processing, image quality improvement and get more useful information, thereby improving the diagnosis. 这些资料也可联网,实现远程诊断、 教育和资料共享。 This information can also be networked, remote diagnostics, education and information sharing. 所述控制器50是用来控制X光机扫描的启动和停止、扫描速度和方向、X射线管11的高压以及数码相机41的快门。 The controller 50 is used to control start and stop of the X-ray scanning, the scanning speed and direction of the shutter, high voltage X-ray tube 11 and the camera 41. X射线管11高压和其发射电流的调节均设在供电电源16的面板。 11 which regulates the emission current and high-voltage X-ray tube power supply 16 are located in the panel. 本实用新型X光机是这样工作的:被检测物体置于X射线发生器与暗箱的方形部分之间。 X-ray machine of the present invention works as follows: the detection object placed between the X-ray generator and the square portion of the dark box. 启动电源,当X射线管加上高压时即产生一束窄长条形X射线,此射线投向被检测物体。 Turn on the power, when the X-ray tube high voltage is applied which produce a bundle of reed shaped X-rays, the rays toward the object to be detected. 穿透物体剩余的X射线射入X射线像增强器20,经转换、放大后显示在荧光屏上,再由数码相机采集。 X-rays penetrate the object remaining incident X-ray image intensifier 20, converted, amplified displayed on the screen, and then collected by a digital camera. 此时采集的仅是被检测物体的一小部分,连续地移动X射线像增强器20, 从被检测物体的一端到另一端,(此时X射线也同步地移动),每一小部分的图像都由数码相机采集,最后形成一幅表现整亇被检测物体特征的图像(由于不同物体或相同物体不同厚度对X射线的吸收不同,因此在荧光屏上显示的明暗图像可以代表物体某些特征),从而完成整个检测过程。 At this time, the acquisition is only a small part of the object to be detected continuously move the X-ray image intensifier 20, from one end to the other end of the detection object, (X-ray at this time is also moved synchronously), a small portion of each the image acquisition by the camera, the performance of a finally formed image of the entire object to be detected Ma features (due to different thicknesses of the different objects or the same object the absorption of X-rays, and therefore brightness of the image displayed on the screen may be representative of some features of the object ) to complete the detection process.

Claims (7)

1、一种便携式X光机,其特征在于,包括: 一X射线发生器,在X射线发生器的小焦点微型X射线管周围,设置铅防护罩,该铅防护罩在X射线管的X射线出口处有一窄长条形开口,该开口处的外侧还装有一铅制的X射线准直器;该X射线管电性连接一电源; 一X射线像增强器,依光阴极、电子倍增板和荧光屏顺序相互绝缘地平行排列组装在真空玻璃管中;光阴极与电子倍增板均为微通道电子倍增板;真空玻璃管中装有消气剂,并从真空玻璃管中分别引出电子倍增板、荧光屏和消气剂的电源接线及地线,均电性连接电源;真空玻璃管置于一铝保护罩内,该铝保护罩在真空玻璃管内的荧光屏的一侧设有一窗口,该窗口处设有一铅玻璃板; 一扫描器,为一驱动装置,其中马达的驱动轮与螺杆导轨连接;该螺杆导轨上有装有X射线像增强器的像增强器支架;像增强 1, a portable X-ray machine, characterized by comprising: an X-ray generator, around the small micro-focus X-ray generator, an X-ray tube, and then a lead shield, the shield lead X-ray tube in X ray has a long narrow strip at the outlet opening, the outside opening is also equipped with a leaden X-ray collimator; the X-ray tube is electrically connected to a power source; an X-ray image intensifier, by the photocathode, electron multiplier and a phosphor screen plate arranged in parallel with each other sequentially assembled insulated glass tubes in vacuo; the photocathode and the electron multiplying microchannel plate electron multiplier plates are; evacuated glass tubes containing getter and is led out from the vacuum of the electron multiplier plate glass tube, respectively , power supply wiring and the ground of the screen and the getter are electrically connected to a power source; vacuum glass tube placed in a protective cover of aluminum, the aluminum side of the screen in the vacuum glass tube protective cover is provided with a window which is provided at the a lead glass; a scanner as a drive means, wherein the motor is connected to the drive wheel and the screw guide rail; the brackets image intensifier with an X-ray image intensifier of the screw on the rail; image enhancement 支架和螺杆导轨装在暗箱内; 一采集器,其中照相机,装在暗箱的外面,该照相机的焦点对准于X射线像增强器内的荧光屏; X射线发生器通过两根联杆固定在暗箱的方形部分外面的底部,从而使本X光机各个部分联成一体;上述X射线发生器、电源、扫描器及采集器电性连接一控制器。 Rail bracket and a screw mounted within the black box; a collector, wherein the camera, mounted on the outside of the dark box, the focus of the camera is aligned in an X-ray phosphor screen within the image intensifier; the X-ray generator by means of two link fixed to the dark box the bottom part of the square outside, so that each part of the X-ray machine into one; the X-ray generator, a power supply, a scanner and a collector electrically connected to the controller.
2、 根据权利要求1所述的便携式X光机,其特征在于,所述X射线像增强器内作为光阴极和电子倍增板的微通道电子倍增板为多片连接。 2, the portable X-ray machine according to claim 1, wherein said X-ray image intensifier as the photocathode and the electron multiplying microchannel plate electron multiplier is a multi-piece plate is connected.
3、 根据权利要求2所述的便携式X光机,其特征在于,所述微通道电子倍增板的连接处为30-60度的倾斜状。 3, the portable X-ray machine according to claim 2, characterized in that the connection of said microchannel plate electron multiplier is inclined 30-60 degrees.
4、 根据权利要求3所述的便携式X光机,其特征在于,所述微通道电子倍增板的连接处为45度的倾斜状。 4. The portable X-ray machine according to claim 3, characterized in that the connection of said microchannel plate electron multiplier is inclined 45 degrees.
5、 根据权利要求1所述的便携式X光机,其特征在于,所述荧光屏为导电玻璃片上喷涂荧光粉。 5. The portable X-ray machine according to claim 1, wherein said screen is a phosphor coating on the conductive glass.
6、 根据权利要求1所述的便携式X光机,其特征在于,所述照相机为数码相机或数码摄像机。 6. A portable X-ray machine according to claim 1, wherein said camera is a digital camera or digital video camera.
7、根据权利要求6所述的便携式X光机,其特征在于,所述数码相机连接一计算机。 7, the portable X-ray machine according to claim 6, wherein said computer is connected to a digital camera.
CNU200720173220XU 2007-09-19 2007-09-19 Portable X-ray equipment CN201164473Y (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102508312A (en) * 2011-09-30 2012-06-20 云南电力试验研究院(集团)有限公司 Insulated bandage-type fastening device for X-ray imaging plate for power use
CN102579062A (en) * 2011-12-22 2012-07-18 重庆大学 Portable X-ray transmissometer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102508312A (en) * 2011-09-30 2012-06-20 云南电力试验研究院(集团)有限公司 Insulated bandage-type fastening device for X-ray imaging plate for power use
CN102508312B (en) * 2011-09-30 2013-08-21 云南电力试验研究院(集团)有限公司 Insulated bandage-type fastening device for X-ray imaging plate for power use
CN102579062A (en) * 2011-12-22 2012-07-18 重庆大学 Portable X-ray transmissometer

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