公开(公告)号：US09070531B2

公开(公告)日：2015-06-30

申请号：US14111512

申请日：2012-04-06

申请人： Kazuyuki Ueda ,  Miki Tamura ,  Yoshihiro Yanagisawa ,  Yasue Sato ,  Koji Yamazaki ,  Takao Ogura ,  Shuji Aoki ,  Ichiro Nomura

发明人： Kazuyuki Ueda ,  Miki Tamura ,  Yoshihiro Yanagisawa ,  Yasue Sato ,  Koji Yamazaki ,  Takao Ogura ,  Shuji Aoki ,  Ichiro Nomura

IPC分类号： H01J35/12 ,  H01J35/02 ,  H05G1/04 ,  H05G1/02 ,  H01J35/16 ,  A61B6/00

CPC分类号： H01J35/16 ,  A61B6/4488 ,  H01J35/12 ,  H01J2235/1287 ,  H01J2235/186 ,  H05G1/025 ,  H05G1/04

摘要： Provided is an X-ray generator comprising an X-ray tube including a cylindrical body; an electron source in the body; a target at an end of the X-ray tube facing the electron source, the target generating X-rays by irradiation with electrons; a container in which the X-ray tube is arranged; insulating liquid filled between the X-ray tube and the container; and a holding member holding the body of the X-ray tube in the container, with a channel for the insulating liquid around the X-ray tube. The distance between the holding member and the end face at the end of the body in the direction in which the electron source and the target face is twice or more as large as the minimum width of the channel that is in contact with the outer surface of the X-ray tube at the end face side with respect to the holding member. This allows heat in the target to be quickly radiated, thus allowing X-rays to be generated stably for a long time.

摘要翻译： 本发明提供一种X射线发生器，其包括：包括圆柱体的X射线管; 身体中的电子源; 面向电子源的X射线管的端部的靶，靶通过电子照射而产生X射线; 设置有X射线管的容器; 填充在X射线管和容器之间的绝缘液体; 以及保持构件，其将X射线管的主体保持在容器中，具有用于X射线管周围的绝缘液体的通道。 在电子源和目标面的方向上的本体的端部处的保持构件与端面之间的距离为与外表面接触的通道的最小宽度的两倍或更多 相对于保持部件的端面侧的X射线管。 这样可以快速地辐射靶内的热量，能够长时间稳定地生成X射线。

公开(公告)号：US20140177796A1

公开(公告)日：2014-06-26

申请号：US14123878

申请日：2012-05-28

申请人： Yasue Sato ,  Takao Ogura ,  Kazuyuki Ueda ,  Shuji Aoki ,  Ichiro Nomura ,  Miki Tamura ,  Yoshihiro Yanagisawa ,  Koji Yamazaki

发明人： Yasue Sato ,  Takao Ogura ,  Kazuyuki Ueda ,  Shuji Aoki ,  Ichiro Nomura ,  Miki Tamura ,  Yoshihiro Yanagisawa ,  Koji Yamazaki

IPC分类号： H01J35/16 ,  G01N23/04

CPC分类号： H01J35/16 ,  G01N23/04 ,  H01J35/186 ,  H01J2235/166 ,  H01J2235/168

摘要： In an X-ray tube having an X-ray shielding member allowing an electron ray to pass through an electron passing hole toward a target, separately from the cathode-side opening of the electron passing hole, a gas exhaust path allowing communication between the inside and outside of the electron passing hole is provided so that gas molecules generated in the electron passing hole can be easily diffused out of the electron passing hole. The degradation of the cathode caused by accelerated collisions with the cathode, of cations generated by collisions of electrons with gas molecules generated in the electron passing hole by a desorption phenomenon due to electron ray irradiation to the target, is reduced.

摘要翻译： 在具有允许电子通过电子通过孔朝向靶的X射线屏蔽构件的X射线管中，与电子通过孔的阴极侧开口分开地，允许内部 并且设置在电子通过孔的外部，使得在电子通过孔中产生的气体分子可以容易地从电子通过孔扩散。 通过与电子射线照射到靶的解吸现象在电子通过孔中产生的电子与气体分子的碰撞产生的阳离子与阴极的加速碰撞引起的阴极的劣化减少。

公开(公告)号：US20140029725A1

公开(公告)日：2014-01-30

申请号：US14111512

申请日：2012-04-06

申请人： Kazuyuki Ueda ,  Miki Tamura ,  Yoshihiro Yanagisawa ,  Yasue Sato ,  Koji Yamazaki ,  Takao Ogura ,  Shuji Aoki ,  Ichiro Nomura

发明人： Kazuyuki Ueda ,  Miki Tamura ,  Yoshihiro Yanagisawa ,  Yasue Sato ,  Koji Yamazaki ,  Takao Ogura ,  Shuji Aoki ,  Ichiro Nomura

IPC分类号： H01J35/16

CPC分类号： H01J35/16 ,  A61B6/4488 ,  H01J35/12 ,  H01J2235/1287 ,  H01J2235/186 ,  H05G1/025 ,  H05G1/04

摘要： Provided is an X-ray generator comprising an X-ray tube including a cylindrical body; an electron source in the body; a target at an end of the X-ray tube facing the electron source, the target generating X-rays by irradiation with electrons; a container in which the X-ray tube is arranged; insulating liquid filled between the X-ray tube and the container; and a holding member holding the body of the X-ray tube in the container, with a channel for the insulating liquid around the X-ray tube. The distance between the holding member and the end face at the end of the body in the direction in which the electron source and the target face is twice or more as large as the minimum width of the channel that is in contact with the outer surface of the X-ray tube at the end face side with respect to the holding member. This allows heat in the target to be quickly radiated, thus allowing X-rays to be generated stably for a long time.

摘要翻译： 本发明提供一种X射线发生器，其包括：包括圆柱体的X射线管; 身体中的电子源; 面向电子源的X射线管的端部的靶，靶通过电子照射而产生X射线; 设置有X射线管的容器; 填充在X射线管和容器之间的绝缘液体; 以及保持构件，其将X射线管的主体保持在容器中，具有用于X射线管周围的绝缘液体的通道。 在电子源和目标面的方向上的本体的端部处的保持构件与端面之间的距离为与外表面接触的通道的最小宽度的两倍或更多 相对于保持部件的端面侧的X射线管。 这样可以快速地辐射靶内的热量，能够长时间稳定地生成X射线。

公开(公告)号：US20120307974A1

公开(公告)日：2012-12-06

申请号：US13469305

申请日：2012-05-11

申请人： Koji Yamazaki ,  Ichiro Nomura ,  Shuji Aoki ,  Takao Ogura ,  Yasue Sato ,  Yoshihiro Yanagisawa ,  Kazuyuki Ueda ,  Miki Tamura

发明人： Koji Yamazaki ,  Ichiro Nomura ,  Shuji Aoki ,  Takao Ogura ,  Yasue Sato ,  Yoshihiro Yanagisawa ,  Kazuyuki Ueda ,  Miki Tamura

IPC分类号： H01J35/16 ,  G01N23/04

CPC分类号： H01J35/16 ,  H01J35/06 ,  H01J35/08 ,  H01J35/116 ,  H01J2235/16

摘要： An X-ray tube comprises: an envelope which has a cathode at one end and an anode at another end of a barrel of a tubular insulating tube and which has a sealed interior; an electron gun which is arranged inside the envelope and has a shape that protrudes from the cathode; and a target which is electrically connected to the anode and generates X-rays when being irradiated with electrons emitted from the electron gun. With reference to an end position that is a projection of a position of an end on the anode side of the electron gun onto an inner wall of the insulating tube, a mean wall thickness of the barrel is greater on the cathode side than on the anode side.

摘要翻译： X射线管包括：在一端具有阴极的外壳和在管状绝缘管的筒的另一端的阳极，并具有密封的内部; 电子枪，其布置在封套内并具有从阴极突出的形状; 以及电子电连接到阳极并且当从电子枪发射的电子被照射时产生X射线的目标。 参考作为电子枪的阳极侧的端部的位置到绝缘管的内壁的端部位置，阴极侧的筒的平均壁厚比在阳极上的平均壁厚更大 侧。

公开(公告)号：US09281155B2

公开(公告)日：2016-03-08

申请号：US13884339

申请日：2011-11-08

申请人： Kazuyuki Ueda ,  Miki Tamura ,  Yasue Sato ,  Takao Ogura ,  Ichiro Nomura ,  Shuji Aoki

发明人： Kazuyuki Ueda ,  Miki Tamura ,  Yasue Sato ,  Takao Ogura ,  Ichiro Nomura ,  Shuji Aoki

IPC分类号： H01J35/02 ,  H01J35/18 ,  H05G1/02 ,  H05G1/04

CPC分类号： H01J35/02 ,  H01J35/18 ,  H01J2235/1204 ,  H01J2235/186 ,  H05G1/025 ,  H05G1/04

摘要： A radiation generating apparatus has a radiation generating tube held in a holding container 12 and a cooling medium between the holding container and the radiation generating tube. The radiation generating tube includes an envelope with an aperture, an electron emitting source arranged in the envelope, a target arranged facing the source, for generating radiation responsive to irradiation with an electron beam emitted from the source, and a tubular shield for holding the target by an inner wall thereof and shielding part of the radiation emitted from the target. The shield is arranged to protrude outward of the envelope so that the target is positioned on an outer side of the aperture, and the cooling medium contacts at least a part of the shield.

摘要翻译： 辐射发生装置具有保持在保持容器12中的辐射生成管和保持容器与辐射生成管之间的冷却介质。 辐射生成管包括具有孔的外壳，布置在外壳中的电子发射源，面向源的目标物体，用于响应于从源发射的电子束的照射产生辐射，以及用于保持靶的管状护罩 通过其内壁和从目标发射的辐射的屏蔽部分。 屏蔽被布置成从外壳向外突出，使得靶位于孔的外侧，并且冷却介质接触屏蔽的至少一部分。

公开(公告)号：US08774364B2

公开(公告)日：2014-07-08

申请号：US13286352

申请日：2011-11-01

申请人： Shuji Aoki ,  Takao Ogura ,  Yasue Sato ,  Miki Tamura ,  Kazuyuki Ueda ,  Ichiro Nomura

发明人： Shuji Aoki ,  Takao Ogura ,  Yasue Sato ,  Miki Tamura ,  Kazuyuki Ueda ,  Ichiro Nomura

IPC分类号： H05G1/12

CPC分类号： H05G1/12 ,  H01J35/045 ,  H05G1/20

摘要： An inverter circuit is shared by respective drive circuits that supply a predetermined voltage to a lens electrode and a grid electrode, or to a lens electrode and a cathode electrode. A DC voltage obtained by full-wave rectifying a pulse train output from the inverter circuit is supplied to the lens electrode, a DC voltage obtained by half-wave rectifying a pulse train output from the inverter circuit is supplied to the grid electrode or cathode electrode. At times of a first operation and a last operation of the inverter circuit during a period of generating X-rays, operations of the inverter circuit are controlled such that a trans circuit outputs a negative polarity voltage to the full-wave rectifying circuit and the half-wave rectifying circuit, respectively.

摘要翻译： 逆变器电路由向透镜电极和栅电极提供预定电压的相应驱动电路或透镜电极和阴极电极共享。 通过对从逆变器电路输出的脉冲串进行全波整流而获得的直流电压被提供给透镜电极，通过对从逆变器电路输出的脉冲串进行半波整流获得的直流电压被提供给栅电极或阴极电极 。 在产生X射线的时段期间的逆变器电路的第一次操作和最后一次操作时，控制逆变器电路的操作，使得反相电路向全波整流电路输出负极性电压，半 波整流电路。

公开(公告)号：US20130230143A1

公开(公告)日：2013-09-05

申请号：US13884339

申请日：2011-11-08

申请人： Kazuyuki Ueda ,  Miki Tamura ,  Yasue Sato ,  Takao Ogura ,  Ichiro Nomura ,  Shuji Aoki

发明人： Kazuyuki Ueda ,  Miki Tamura ,  Yasue Sato ,  Takao Ogura ,  Ichiro Nomura ,  Shuji Aoki

IPC分类号： H01J35/02

CPC分类号： H01J35/02 ,  H01J35/18 ,  H01J2235/1204 ,  H01J2235/186 ,  H05G1/025 ,  H05G1/04

摘要： A radiation generating apparatus 31 comprises: a radiation generating tube 11; a holding container 12 holding the radiation generating tube; and a cooling medium 33 between the holding container and the radiation generating tube, wherein the radiation generating tube includes an envelope 14 including an aperture 14a, an electron emitting source arranged in the envelope, a target 18, 19 arranged so as to face the electron emitting source, for generating a radiation responsive to an irradiation with an electron beam emitted from the electron emitting source, and a shield 20 of a tubular shape, for holding the target by an inner wall of the tubular shape and shielding a part of the radiation emitted from the target, the shield is arranged so as to protrude outward of the envelope so that the target is positioned on an outer side of the aperture, and the cooling medium contacts at least a part of the shield.

摘要翻译： 辐射发生装置31包括：辐射发生管11; 保持容器12，其保持放射线生成管; 以及在保持容器和辐射发生管之间的冷却介质33，其中辐射发生管包括包含孔14a的外壳14，布置在外壳中的电子发射源，布置成面向电子的靶18,19 发射源，用于产生响应于从电子发射源发射的电子束的照射的辐射;以及管状护罩20，用于通过管状内壁保持靶，并屏蔽辐射的一部分 从所述目标发射的所述屏蔽层被布置成从所述外壳向外突出，使得所述目标位于所述孔的外侧，并且所述冷却介质与所述屏蔽的至少一部分接触。

公开(公告)号：US09373478B2

公开(公告)日：2016-06-21

申请号：US13884370

申请日：2011-11-01

申请人： Miki Tamura ,  Kazuyuki Ueda ,  Takao Ogura ,  Yasue Sato ,  Ichiro Nomura ,  Shuji Aoki

发明人： Miki Tamura ,  Kazuyuki Ueda ,  Takao Ogura ,  Yasue Sato ,  Ichiro Nomura ,  Shuji Aoki

IPC分类号： H01J35/12

CPC分类号： H01J35/12 ,  H01J2235/087 ,  H01J2235/1291 ,  H01J2235/186

摘要： There is provided a radiation generating apparatus having a simple structure and capable of shielding unnecessary radiation, cooling a target, reducing the size and weight of the apparatus, and achieving higher reliability, and a radiation imaging apparatus having the same. A transmission type radiation tube is held inside a holding container filled with a cooling medium. The transmission type radiation tube includes an envelope having an aperture, an electron source arranged inside the envelope so as to face the aperture of the envelope, a target unit for generating a radiation responsive to an irradiation with an electron emitted from the electron source, and a shield member for shielding a part of the radiation emitted from the target unit. The cooling medium contacts at least a part of the shield member.

摘要翻译： 提供了一种具有简单结构并且能够屏蔽不必要的辐射，冷却目标，减小设备的尺寸和重量以及实现更高可靠性的辐射发生装置，以及具有该辐射成像装置的辐射成像装置。 透射型辐射管被保持在填充有冷却介质的保持容器内。 透射型辐射管包括具有开口的外壳，布置在外壳内的电子源以面向外壳的孔径，用于产生响应于从电子源发射的电子的照射的辐射的目标单元，以及 用于屏蔽从目标单元发射的辐射的一部分的屏蔽构件。 冷却介质与屏蔽构件的至少一部分接触。

公开(公告)号：US20130235975A1

公开(公告)日：2013-09-12

申请号：US13884370

申请日：2011-11-01

申请人： Miki Tamura ,  Kazuyuki Ueda ,  Takao Ogura ,  Yasue Sato ,  Ichiro Nomura ,  Shuji Aoki

发明人： Miki Tamura ,  Kazuyuki Ueda ,  Takao Ogura ,  Yasue Sato ,  Ichiro Nomura ,  Shuji Aoki

IPC分类号： H01J35/12

CPC分类号： H01J35/12 ,  H01J2235/087 ,  H01J2235/1291 ,  H01J2235/186

摘要： There is provided a radiation generating apparatus having a simple structure and capable of shielding unnecessary radiation, cooling a target, reducing the size and weight of the apparatus, and achieving higher reliability, and a radiation imaging apparatus having the same. A transmission type radiation tube is held inside a holding container filled with a cooling medium. The transmission type radiation tube includes an envelope having an aperture, an electron source arranged inside the envelope so as to face the aperture of the envelope, a target unit for generating a radiation responsive to an irradiation with an electron emitted from the electron source, and a shield member for shielding a part of the radiation emitted from the target unit. The cooling medium contacts at least a part of the shield member.

摘要翻译： 提供了一种具有简单结构并且能够屏蔽不必要的辐射，冷却目标，减小设备的尺寸和重量以及实现更高可靠性的辐射发生装置，以及具有该辐射成像装置的辐射成像装置。 透射型辐射管被保持在填充有冷却介质的保持容器内。 透射型辐射管包括具有开口的外壳，布置在外壳内的电子源以面向外壳的孔径，用于产生响应于从电子源发射的电子的照射的辐射的目标单元，以及 用于屏蔽从目标单元发射的辐射的一部分的屏蔽构件。 冷却介质与屏蔽构件的至少一部分接触。

公开(公告)号：US09208987B2

公开(公告)日：2015-12-08

申请号：US13580368

申请日：2011-02-21

申请人： Kazuya Miyazaki ,  Takao Ogura ,  Kazuyuki Ueda ,  Yasue Sato ,  Ichiro Nomura ,  Shuji Aoki ,  Miki Tamura

发明人： Kazuya Miyazaki ,  Takao Ogura ,  Kazuyuki Ueda ,  Yasue Sato ,  Ichiro Nomura ,  Shuji Aoki ,  Miki Tamura

IPC分类号： H01J35/08 ,  H01J35/16 ,  H01J35/18

CPC分类号： H01J35/08 ,  H01J35/16 ,  H01J35/18 ,  H01J2235/068 ,  H01J2235/087 ,  H01J2235/163 ,  H01J2235/166 ,  H01J2235/168 ,  H01J2235/186

摘要： A radioactive ray generating apparatus includes a second shielding member, a target, and a first shielding member, which are sequentially disposed from an electron emission source side. A shortest distance from a maximum radiation intensity portion of the target to the first shielding member is shorter than a shortest distance from the maximum radiation intensity portion of the target to the second shielding member.

摘要翻译： 放射线产生装置包括从电子发射源侧依次设置的第二屏蔽部件，靶和第一屏蔽部件。 从目标的最大辐射强度部分到第一屏蔽部件的最短距离比从目标的最大辐射强度部分到第二屏蔽部件的最短距离短。