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71. 发明申请

US20060165220A1 X-ray generator and x-ray ct apparatus comprising same 失效
标题翻译： X射线发生器和包括其的X射线CT装置
公开(公告)号：US20060165220A1
公开(公告)日：2006-07-27
申请号：US10527161
申请日：2003-09-05
申请人： Jun Takahashi , Takuya Domoto , Hiroshi Takano
发明人： Jun Takahashi , Takuya Domoto , Hiroshi Takano
IPC分类号： H05G1/34 , H05G1/50
CPC分类号： H05G1/10
摘要： In an X-ray generating device of the neutral grounding system, to remove an unbalance voltage generated due to difference in impedance of parallel transformer coils of the high voltage transformer and particularly an unbalance voltage involved with difference in impedance above and below the neutral points generated in a metal X-ray tube, a plurality of currents flowing in opposite directions through primary windings of the parallel transformer coils in the high voltage transformer are passed through by or wound around a common toroidal coil or wound around an outer circumference of the toroidal coil at a predetermined ratio of winding number, and the unbalance voltage occurring to the secondary side is cancelled by changing primary current with magnetic behavior.
摘要翻译：在中性点接地系统的X射线发生装置中，为了消除由于高压变压器的并联变压器线圈的阻抗差异而产生的不平衡电压，特别是与产生的中性点之上和之下的阻抗差异相关的不平衡电压在金属X射线管中，通过高压变压器中的并联变压器线圈的初级绕组沿相反方向流动的多个电流通过或围绕公共环形线圈缠绕或围绕环形线圈的外周缠绕以预定的绕组数比，并且通过用磁性行为改变初级电流来消除发生到次级侧的不平衡电压。

72. 发明授权

US07050532B2 Imaging condition determining method and an X-ray CT apparatus 失效
标题翻译：成像条件确定方法和X射线CT装置
公开(公告)号：US07050532B2
公开(公告)日：2006-05-23
申请号：US10924365
申请日：2004-08-23
申请人： Makoto Gohno
发明人： Makoto Gohno
IPC分类号： H05G1/34
CPC分类号： A61B6/032 , A61B6/027 , A61B6/467 , A61B6/469 , A61B6/545 , G01N2223/419 , G01N2223/612
摘要： An imaging condition determining method for an x-ray CT apparatus for performing imaging by a helical scan. The method includes making a table of various imaging conditions in advance, extracting at least one imaging condition from the table in accordance with age, imaging region, imaging length of the patient as well as the highest-priority objective specified by a user, and displaying the exposure dose of the patient under the at least one imaging condition, enabling the user to adjust the exposure dose, and determining the imaging condition adjusted in response to the adjustment of the exposure dose to the at least one imaging condition.
摘要翻译：一种用于通过螺旋扫描进行成像的X射线CT装置的成像条件确定方法。该方法包括根据年龄，成像区域，患者的成像长度以及由用户指定的最高优先级的目标从表中提取至少一个成像条件，以及显示各种成像条件，所述患者在所述至少一个成像条件下的暴露剂量，使得所述使用者能够调整所述暴露剂量，以及确定响应于对所述至少一个成像条件的所述暴露剂量的调整而调整的成像条件。

73. 发明授权

US07016468B1 X-ray tube preheat control 失效
标题翻译： X射线管预热控制
公开(公告)号：US07016468B1
公开(公告)日：2006-03-21
申请号：US10386820
申请日：2003-03-12
申请人： Alan P. Krema , Virginia S. Griser, legal representative
发明人： John T. Griser, deceased
IPC分类号： H05G1/32 , H05G1/34
CPC分类号： H05G1/34
摘要： A current feedback circuit in a dental imaging apparatus, which measures the x-ray tube current produced by the x-ray filament. During preheat, when the tube current is sensed to be appropriate for production of a constant rate of electrons, preheat is stopped, and diagnostic radiation emission begins. This circuit eliminates a fixed amount of preheat pulses which contribute unusable radiation during preheat of the filament in prior art systems.
摘要翻译：牙科成像设备中的电流反馈电路，其测量由X射线灯丝产生的X射线管电流。在预热期间，当检测到管电流适合于产生恒定速率的电子时，预热停止，并且诊断辐射发射开始。该电路消除了固定量的预热脉冲，其在现有技术系统中的灯丝预热期间产生不可用的辐射。

74. 发明授权

US06990172B2 Method and apparatus to determine tube current modulation profile for radiographic imaging 有权
标题翻译：确定射线照相成像的管电流调制曲线的方法和装置
公开(公告)号：US06990172B2
公开(公告)日：2006-01-24
申请号：US10782485
申请日：2004-02-19
申请人： Thomas L. Toth , Steven J. Woloschek , Jonathan R. Schmidt
发明人： Thomas L. Toth , Steven J. Woloschek , Jonathan R. Schmidt
IPC分类号： H05G1/34
CPC分类号： A61B6/032 , A61B6/4085 , A61B6/488 , A61B6/542 , A61B6/544 , A61B6/583 , G06F19/00
摘要： A method and apparatus is disclosed to acquire scout scan data of a subject and analyzed to determine a peak-to-peak modulation amplitude of a normalized waveform indicative of subject size and shape. The scout scan data provides a representation of patient size and shape that is associated with an ideal tube current modulation waveform or profile. The ideal tube current modulation profile may then be sampled or approximated at various points to determine a tube current modulation profile for implementation to acquire CT data with reduced dose but without sacrificing image quality.
摘要翻译：公开了一种获取被摄体的侦察扫描数据并进行分析的方法和装置，以确定表示被摄体大小和形状的归一化波形的峰 - 峰调制幅度。侦察扫描数据提供与理想的管电流调制波形或轮廓相关联的患者大小和形状的表示。然后可以在各个点对理想的管电流调制曲线进行采样或近似，以确定管电流调制曲线，用于实现以减小剂量而不牺牲图像质量来获取CT数据。

75. 发明授权

US06944268B2 X-ray generator 有权
标题翻译： X光发生器
公开(公告)号：US06944268B2
公开(公告)日：2005-09-13
申请号：US10469769
申请日：2002-08-29
申请人： Takashi Shimono
发明人： Takashi Shimono
IPC分类号： H05G1/30 , H05G1/34 , H05G1/32
CPC分类号： H01J35/045 , H05G1/30 , H05G1/34
摘要： An X-ray generator comprises a cathode electrode (15), a grid electrode (17) for controlling an electron beam (e) generated by the cathode electrode (15), a focus electrode (18) for focusing the electron beam (e), and an anode target (14) for emitting X rays by the collision of the electron beam (e). A bias voltage (Vb) is impressed between the cathode electrode (15) and the grid electrode (17) from a bias voltage generating section (20). A tube voltage (Vt) is impressed on the anode target (13) from a tube voltage generating section (19). A voltage dividing section (31) divides the tube voltage (Vt) to generate a focus voltage (Vf). The effect of a variation in voltage on the formation of a focal point of the electron beam is suppressed by impressing such a focus voltage (Vf) on the focus electrode (18).
摘要翻译： X射线发生器包括阴极电极（15），用于控制由阴极电极（15）产生的电子束（e）的栅电极（17），用于聚焦电子束（e）的聚焦电极（18），以及用于通过电子束（e）的碰撞而发射X射线的阳极靶（14）。偏置电压（Vb）从偏置电压产生部分（20）施加到阴极电极（15）和栅电极（17）之间。管电压（Vt）从管电压产生部分（19）施加到阳极靶（13）上。分压部（31）分割管电压（Vt），生成聚焦电压（Vf）。通过在聚焦电极（18）上施加聚焦电压（Vf）来抑制电压变化对电子束焦点形成的影响。

76. 发明申请

US20050185760A1 X-ray computed tomography apparatus with x-ray intensity control 有权
标题翻译：具有x射线强度控制的X射线计算机断层摄影装置
公开(公告)号：US20050185760A1
公开(公告)日：2005-08-25
申请号：US11107901
申请日：2005-04-18
申请人： Tatsuro Suzuki
发明人： Tatsuro Suzuki
IPC分类号： A61B6/03 , G21K1/12 , A61B6/00 , G01N23/00 , H05G1/34 , H05G1/50 , H05G1/60
CPC分类号： A61B6/032 , A61B6/542
摘要： An X-ray computed tomography apparatus includes an X-ray tube, a high voltage generator which generates a high voltage to be applied to the X-ray tube, an X-ray detector having a plurality of X-ray detection element lines, a scanogram generating unit which generates a scanogram on the basis of an output from the X-ray detector, a reconstructing unit which reconstructs an image on the basis of an output from the X-ray detector, a tube current determining unit which determines a tube current value on the basis of the pixel values of a plurality of pixels included in a two-dimensional partial region of the scanogram, and a control unit which controls the high voltage generator on the basis of the determined tube current value.
摘要翻译： X射线计算机断层摄影装置包括X射线管，产生施加到X射线管的高电压的高电压发生器，具有多个X射线检测元件线的X射线检测器，扫描图生成单元，其基于来自X射线检测器的输出生成扫描图;重建单元，其基于来自X射线检测器的输出重建图像;管电流确定单元，其确定管电流基于包括在扫描图的二维部分区域中的多个像素的像素值的控制单元，以及基于所确定的管电流值来控制高电压发生器的控制单元。

77. 发明申请

US20050058250A1 Method for automatically setting an X-ray dosage for producing an X-ray tomographic image 有权
标题翻译：用于自动设定用于生产X射线断层图像的X射线剂量的方法
公开(公告)号：US20050058250A1
公开(公告)日：2005-03-17
申请号：US10660395
申请日：2003-09-11
申请人： Stefan Popescu , Christoph Sub , Heiko Wolf , Dietmar Hentschel
发明人： Stefan Popescu , Christoph Sub , Heiko Wolf , Dietmar Hentschel
IPC分类号： A61B6/03 , A61B6/00 , H05G1/34 , H05G1/50
CPC分类号： A61B6/032 , A61B6/4035 , A61B6/542 , A61B6/583
摘要： For automatically controlling or adjusting the X-ray dose when scanning an examination subject in a CT apparatus, a series of reference measurements are initially made by obtaining CT images of respective phantoms having different attenuation. The tube current for each phantom that produces an image of the phantom having an acceptable noise level, and thus an acceptable image quality, is stored in a table. In a subsequent CT scan of an examination subject, the tube voltage is automatically adjusted when irradiating a region of the subject having attenuation comparable to the attenuation of one of the phantoms, so as to employ the tube current when irradiating the examination subject that produced the image of acceptable quality for the comparable phantom.
摘要翻译：为了在CT装置中扫描检查对象时自动控制或调整X射线剂量，首先通过获得具有不同衰减的各个体模的CT图像来进行一系列参考测量。用于产生具有可接受噪声水平并因此具有可接受的图像质量的体模的图像的每个体模的管电流存储在表中。在检查对象的随后的CT扫描中，当照射具有与其中一个体模的衰减相当的衰减的受试者区域时，管电压被自动调整，以便在照射产生可比较体模可接受质量的形象。

78. 发明授权

US6069938A Method and x-ray device using pulse high voltage source 失效
标题翻译：方法和x射线装置使用脉冲高压源
公开(公告)号：US6069938A
公开(公告)日：2000-05-30
申请号：US67844
申请日：1998-04-27
申请人： Victor Ivan Chornenky , Dale Loren Schreiner , Graham Steven Kerslick , Michael Roy Satteson , Ali Jaafar
发明人： Victor Ivan Chornenky , Dale Loren Schreiner , Graham Steven Kerslick , Michael Roy Satteson , Ali Jaafar
IPC分类号： A61N5/10 , H01J35/22 , H05G1/20 , H05G1/32 , H05G1/34 , H01J35/32
CPC分类号： A61N5/1001 , H05G1/20 , H01J2201/304 , H01J2235/164
摘要： An apparatus and method for exposing a treatment site in a patient to x-ray radiation is described that uses a pulse voltage source, where the x-ray emitter employs a cold cathode. The invention may further include a current sensor for measuring a current through the x-ray emitter, and, optionally, a current integrator connected to the current sensor. Each voltage pulse may be discontinued when a predetermined amount of charge has passed through the emitter. The step of moving an x-ray emitter past a treatment area at a rate determined by the amount of charge that has passed through the emitter is also described. The present invention also includes an x-ray emitter device with rectangular voltage pulses added to a base direct current voltage. Another step of the invention may be applying a voltage pulse cycle to the x-ray emitter where a duration of the pulse is 2-5 times lower than a thermal relaxation time of an emitter.
摘要翻译：描述了一种用于将患者中的治疗部位暴露于X射线辐射的装置和方法，其使用脉冲电压源，其中x射线发射器采用冷阴极。本发明还可以包括用于测量通过x射线发射器的电流的电流传感器，以及可选地连接到电流传感器的电流积分器。当预定量的电荷通过发射器时，每个电压脉冲可能被中止。还描述了以通过发射器的电荷量确定的速率将x射线发射器移动经过处理区域的步骤。本发明还包括一个x射线发射器件，其具有添加到基极直流电压的矩形电压脉冲。本发明的另一个步骤可以是向x射线发射器施加电压脉冲周期，其中脉冲持续时间比发射极的热松弛时间低2-5倍。

79. 发明授权

US5727043A X-ray diffractometer 失效
$X-ray diffractometer$
标题翻译： X射线衍射仪
公开(公告)号：US5727043A
公开(公告)日：1998-03-10
申请号：US668336
申请日：1996-06-25
申请人： Kazuyuki Watanabe
发明人： Kazuyuki Watanabe
IPC分类号： G01N23/20 , H01J35/22 , H05G1/34 , H05G1/56
CPC分类号： H05G1/56 , H05G1/34
摘要： It is an object of the present invention to provide an x-ray diffractometer for measuring an x-ray diffraction pattern obtained by irradiating x-rays 6 to a sample 7, in which, even though irradiation/non-irradiation of x-rays 6 to the sample 7 are repeated, a target in an x-ray tube bulb 1 is not contaminated and a filament 3 is not thermally stressed, thus improving the practical lifetime of the x-ray tube bulb 1. To achieve this object, the x-ray diffractometer of the present invention is arranged such that x-ray irradiation/non-irradiation selecting means 17 is arranged to switch states of supply and non-supply of a tube voltage to the x-ray tube bulb 1, and that an x-ray generating power source device 11 comprises filament preliminary heating current supply means 16 for letting flow a preset current in the filament 3 of the x-ray tube bulb 1 in the state where a tube voltage is not supplied. According to the arrangement above-mentioned, in the x-ray non-irradiation state, each of the tube voltage and current of the x-ray tube bulb 1 becomes zero, and the filament 3 is brought to a preliminarily heated state.
摘要翻译：本发明的目的是提供一种用于测量通过将X射线6照射到样品7而获得的x射线衍射图的X射线衍射仪，其中即使照射/不照射x射线6 对样品7重复，X射线管灯泡1中的靶没有被污染，灯丝3不受热应力，从而提高了X射线管灯泡1的实际寿命。为了实现该目的，x 本发明的射线衍射仪被布置成使得x射线照射/非照射选择装置17被布置成将管电压的供应和不供应状态切换到X射线管灯泡1，并且x射线照射/ 射线发生电源装置11包括灯丝预备加热电流供给装置16，用于在未供应管电压的状态下使预设电流流入X射线管灯泡1的灯丝3。根据上述结构，在x射线不照射状态下，X射线管灯管1的管电压和电流各为零，灯丝3处于预热状态。

80. 发明授权

US5680430A Method and apparatus for controlling and optimizing output of an x-ray source 失效
标题翻译：用于控制和优化x射线源的输出的方法和装置
公开(公告)号：US5680430A
公开(公告)日：1997-10-21
申请号：US636565
申请日：1996-04-23
申请人： Oscar Khutoryansky , Thomas Rosevear , Thomas Simak , Cyril Tomsic
发明人： Oscar Khutoryansky , Thomas Rosevear , Thomas Simak , Cyril Tomsic
IPC分类号： G21K5/02 , A61B6/02 , H05G1/26 , H05G1/34 , H05G1/36 , H05G1/46
CPC分类号： H05G1/26 , H05G1/34 , H05G1/36
摘要： A method for controlling output of an x-ray source to optimize x-ray energy arriving at an associated x-ray receptor during linear tomographic examination. The method comprises the steps of selecting tomographic sweep parameters, predicting a set of x-ray source control parameters based, at least in part, upon the selected tomographic sweep parameters, and controlling x-ray source output in accordance with the set of x-ray source control parameters to optimize x-ray energy arriving at the associated x-ray receptor. Apparatus for controlling output of an x-ray source is also disclosed.
摘要翻译：用于控制x射线源的输出以在线性层析成像检查期间优化到达相关X射线受体的x射线能量的方法。该方法包括以下步骤：至少部分地基于所选择的断层扫描参数来选择层析扫描参数，预测一组x射线源控制参数，以及根据x- 射线源控制参数以优化到达相关联的X射线受体的X射线能量。还公开了用于控制x射线源的输出的装置。

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