公开(公告)号：US20160174922A1

公开(公告)日：2016-06-23

申请号：US14908178

申请日：2014-07-29

申请人： JOB CORPORATION ,  NAGOYA UNIVERSITY

发明人： Yoshie KODERA ,  Tsutomu YAMAKAWA ,  Shuichiro YAMAMOTO ,  Yoshiharu OBATA

IPC分类号： A61B6/00

CPC分类号： A61B6/502 ,  A61B6/025 ,  A61B6/032 ,  A61B6/06 ,  A61B6/4035 ,  A61B6/4233 ,  A61B6/4266 ,  A61B6/4291 ,  A61B6/4441 ,  A61B6/482 ,  A61B6/5205 ,  A61B6/5258

摘要： A low-energy X-ray image formation apparatus includes an X-ray generator generating X-rays having an energy spectrum showing an energy range continuously ranging from 18-30 keV (or −37 keV), the energy range being higher in energy from an effective energy of an energy range ranging 10 to 23 keV. A detector detects the X-rays transmitted through a soft tissue of a subject or a tissue of a substance. The tissue of the substance corresponds in a contrast-to-noise ratio (CNR) to the soft tissue of the object. A console acquires an image of the soft tissue of the object or of the substance, based on a detection signal from the detector. The soft tissue and the substance are defined as a soft tissue and a substance presenting a CNR of 3.8 or more when the X-rays are radiated in a condition where an X-ray tube voltage is set at 20 kV.

摘要翻译： 低能量X射线成像装置包括产生具有能量范围连续在18-30keV（或-37keV）的能量谱的X射线的X射线发生器，能量范围从 能量范围在10至23keV之间的有效能量。 检测器检测透过物体的软组织或物质的组织的X射线。 物质的组织对应于对象的软组织的对比度（CNR）。 控制器基于来自检测器的检测信号来获取物体或物质的软组织的图像。 当X射线管电压设定为20kV的条件下，软组织和物​​质被定义为软组织和呈现3.8R以上的CNR的物质。

公开(公告)号：US20180063934A1

公开(公告)日：2018-03-01

申请号：US15682909

申请日：2017-08-22

申请人： JOB CORPORATION ,  ISHIDA CO., LTD

发明人： Yoshiharu OBATA ,  Shigeru HANAMATSU ,  Osamu HIROSE ,  Takashi KABUMOTO

IPC分类号： H05G1/66 ,  G03B42/02 ,  H05G1/54 ,  H05G1/52

摘要： Provided is an X-ray apparatus and a method of controlling an X-ray apparatus capable of detecting a sign of breakage of a filament. A method of controlling an X-ray apparatus for performing control involving controlling a filament current flowing through a filament of a cathode part to maintain constant a tube current flowing between the cathode part and an anode part with a target, includes: monitoring the current value of at least one of the filament current and the tube current; detecting the mode of change in the current value; determining the presence or absence of a sign of breakage of the filament based on the mode of change in the current value; and issuing a warning based on the determination.

公开(公告)号：US20180209922A1

公开(公告)日：2018-07-26

申请号：US15329598

申请日：2016-04-20

申请人： JOB CORPORATION

发明人： Tsutomu YAMAKAWA ,  Shuichiro YAMAMOTO ,  Yoshiharu OBATA ,  Masashi YAMASAKI ,  Masahiro OKADA

IPC分类号： G01N23/04 ,  A61B6/14 ,  G01N23/083 ,  G01N23/18 ,  G06T7/00 ,  G06T11/20

CPC分类号： G01N23/04 ,  A61B6/00 ,  A61B6/12 ,  A61B6/14 ,  G01N23/083 ,  G01N23/087 ,  G01N23/18 ,  G01N2223/401 ,  G01N2223/402 ,  G06T7/0004 ,  G06T7/0012 ,  G06T11/206 ,  G06T2207/10116 ,  G06T2207/30068 ,  G06T2207/30128

摘要： The type and/or properties of a substance is identified highly accurately regardless of the thickness of the substance. A data processing apparatus processes counts detected at each of pixels of a photo counting detector in each of a plurality of energy ranges of X-rays. The X-rays are radiated from an X-ray tube, and transmitted through an object. The apparatus calculates an image of the object based on the counts, and sets a region of interest on the image. The apparatus further removes, from the pixel, pixel information showing a background present in the region of interest, and calculates, pixel by pixel, inherent information inherent to the substance, based on the counts detected at each of the respective pixels in each of the energy ranges of the X-rays in the region of interest. The inherent information indicates a transmission characteristic inherent to the X-rays.