JP6284783B2 - X-ray equipment - Google Patents

Description

  The present invention relates to an X-ray imaging apparatus, and more particularly to an X-ray imaging apparatus that is mounted on a vehicle and transported.

  An X-ray imaging apparatus irradiates a subject with X-rays generated by an X-ray tube, detects an X-ray dose transmitted through the subject, and forms an image.

  In addition to being installed in an X-ray imaging room in a hospital, the X-ray imaging apparatus is mounted on a vehicle such as a bus and used as an X-ray examination vehicle. In addition, the X-ray imaging apparatus is also used as a mobile X-ray apparatus that is mounted on a carriage and circulates within a hospital.

  In general, in a mobile X-ray apparatus, a limit angle is provided on the slope of a movable slope in order to prevent a fall. Therefore, when the current value of the motor that drives the wheels of the carriage exceeds a predetermined value, the mobile X-ray apparatus that determines that the slope exceeding the limit angle is climbed and stops traveling of the carriage is provided. Are known. Patent Document 1 discloses a technique for providing a means for detecting the tilt angle of the carriage, and when the inclination of the carriage is greater than or equal to the limit angle, an alarm is issued to stop the running of the carriage. Specifically, in the technique of Patent Document 1, when the inclination of the mobile X-ray apparatus is detected by an inclination sensor arranged inside the carriage, the control unit receives the detection result, and the inclination angle exceeds the limit angle. The alarm lamp is displayed or the operation of the motor that drives the carriage is restricted.

JP 2009-22777 A

  A high voltage generator for supplying power to an X-ray tube includes a high voltage circuit such as a high voltage transformer, and these circuits need to be immersed in insulating oil for insulation and cooling. For this reason, the high voltage circuit is arranged in a tank containing insulating oil. However, when the high-voltage generator is tilted and a high-voltage circuit such as a high-voltage transformer is exposed from the liquid surface of the insulating oil and touches the air, a discharge may occur at the part in contact with the air. Therefore, it is desired to detect the inclination of the high voltage generator and check whether the high voltage circuit is exposed from the insulating oil.

  However, the X-ray examination vehicle does not run by receiving power supply like the mobile X-ray apparatus, but the vehicle is in a state where power is not supplied to the mounted X-ray imaging apparatus. Therefore, it is difficult for the X-ray imaging apparatus to detect whether an inclination greater than the limit angle has occurred.

  The technology of Patent Document 1 is an invention of a mobile X-ray apparatus to which power is supplied, and is premised on self-running in a state where power is supplied. It cannot be applied to tilt detection of devices that are not supplied.

  An object of the present invention is to provide an X-ray imaging apparatus capable of confirming whether or not the high voltage generator is inclined at a predetermined angle or more when power is not supplied to the X-ray imaging apparatus.

  In order to achieve the above object, an X-ray imaging apparatus of the present invention has an X-ray tube, a high-voltage generator that supplies power to the X-ray tube, and an angle detector that detects the inclination of the high-voltage generator. . The angle detection unit has a function of recording whether or not an inclination greater than a predetermined angle has occurred in the high voltage generator during a period when the power supply voltage is not supplied to the high voltage generator.

  According to the present invention, by checking the recording of the angle detection unit, it is possible to grasp whether or not the high voltage generation device is tilted more than a predetermined angle when power is not supplied to the X-ray imaging apparatus. Is obtained.

1 is a block diagram showing an entire X-ray imaging apparatus according to a first embodiment. The front view of the angle detection part of FIG. (a)-(c) Explanatory drawing which shows the operation | movement which the angle detection part of FIG. 1 records an angle. The front view of the angle detection part which can detect the direction which inclined. The block part of the high voltage generator 108 and the control apparatus 118 of FIG. The perspective view of the angle detection part fixed to the housing | casing 119 of the high voltage generator 108. FIG. 3 is a flowchart showing the operation of the X-ray imaging apparatus according to the first embodiment. The front view which shows another example of an angle detection part. Explanatory drawing which shows attaching an angle detection part to the two side surfaces of the housing | casing 119. FIG. The block diagram which shows the circuit structure of the angle detection part of 2nd Embodiment.

(First embodiment)
The X-ray imaging apparatus of the present invention includes an X-ray tube 102, a high voltage generator 108 that supplies power to the X-ray tube 102, and an angle at which the inclination of the high voltage generator 108 is detected as shown in FIGS. And a detection unit 210. The angle detection unit 210 has a function of recording whether or not the high voltage generator 108 is inclined more than a predetermined angle θ with respect to the vertical direction during a period when the power supply voltage is not supplied to the high voltage generator 108. I have.

  For example, as shown in FIG. 2, the angle detection unit 210 includes a guide member 201 that forms a path that inclines with the inclination of the high voltage generator 108, and the inclination of the path of the guide member 201 is equal to or greater than a predetermined angle θ. And a movable member 212 that moves to a predetermined position 202 along the path when it is reached. Therefore, it is possible to record whether or not the inclination of the predetermined voltage or more has occurred in the high voltage generator 108 depending on whether or not the movable member 212 has moved to the predetermined position 202. The guide member 201 is attached to the high voltage generator 108 or a member that is inclined together with the high voltage generator 108.

  The angle detection unit 210 preferably further includes a detection unit 213 that detects whether or not the movable member 212 exists at the predetermined position 202.

  The guide member 201 has a first path 201-1 inclined at a predetermined angle with respect to the horizontal direction and a second path 201- along the vertical direction, with the high voltage generator 108 not inclined. 2 may be included. The upper end of the second path 201-2 is connected to the upper end 201-1a of the first path 201-1 in a state where the high voltage generator is not inclined. In this case, the lower end of the second path 201-2 is the predetermined position 202. As shown in FIG. 2, the movable member 212 is located at the lower end of the first path 201-1 in a state where the high voltage generator 108 is not inclined. When the high voltage generator 108 is tilted by a predetermined angle θ or more, as shown in FIGS. 3A and 3B, the movable member 212 moves along the first path 201-1 due to gravity. It enters the second path 201-2 and moves to the lower end of the second path 201-2. In this way, the inclination can be recorded by the movable member 212 moving to the lower end of the second path 201-2 (FIG. 3C).

  Moreover, as shown in FIG. 2, the guide member 201 may further include a third path 201-3 connected to the upper end 201-1a of the first path 201-1. The third path 201-3 is inclined symmetrically to the first path 201-1 with respect to the vertical direction in a state where the high voltage generator 108 is not inclined. A second movable member 215 is disposed in the third path 201-3. In this configuration, at least one of the first path 201-1 and the third path 201-2 is, as shown in FIG. 4, a second detection unit that detects whether there is a movable member 212 or 215 in the path. It is also possible to arrange 216 further.

  In addition, the member 214 which prevents the movable members 212 and 215 moving between the 1st path | route 201-1 and the 3rd path | route 201-3 is provided in the upper side edge part 201-1a of the 1st path | route 201-1. It is also possible.

  Hereinafter, the X-ray imaging apparatus of the first embodiment will be specifically described. FIG. 1 is a block diagram showing the overall configuration of the X-ray imaging apparatus according to the first embodiment.

  The X-ray imaging apparatus includes an aperture device 104, an X-ray detection unit 110, a control device 118, image processing, in addition to an X-ray tube 102 that irradiates the subject 100 with X-rays, a high voltage generation device 108, and an angle detection unit 210. Unit 112, image storage unit 114, display unit 116, and operation unit 120. The diaphragm device 104 sets an X-ray irradiation area for the subject 100. The X-ray detection unit 110 is disposed at a position facing the X-ray source 102 and detects X-rays transmitted through the subject 100. The image processing unit 112 performs predetermined processing on the X-ray signal output from the X-ray detection unit 110 to generate an X-ray image and also performs image processing. The image storage unit 114 stores the X-ray image output from the image processing unit 112. The display unit 116 displays an X-ray image (including a fluoroscopic image) that displays the X-ray image output from the image processing unit 112 or the X-ray image stored in the image storage unit 114. The control device 118 controls each component described above. The operation unit 120 receives an instruction or parameter input from the operator and passes it to the control device 118.

  An X-ray filter or the like that selectively transmits X-rays having specific energy can be attached to the X-ray tube 102. The diaphragm 104 has a plurality of X-ray shielding lead plates that shield X-rays generated from the X-ray source 102, and each of the plurality of X-ray shielding lead plates is moved to irradiate the subject 100 with X-rays. Determine the area. As the X-ray detection unit 110, for example, a configuration in which a plurality of detection elements for detecting X-rays are arranged in a two-dimensional array can be used. Each of the plurality of detection elements outputs an X-ray signal corresponding to the incident amount of X-rays irradiated from the X-ray tube 102 and transmitted through the subject 100. Image processing performed by the image processing unit 112 includes, for example, gamma conversion, gradation conversion processing, image enlargement / reduction, and the like.

  The structures of the control device 118 and the high voltage generator 108 will be described. As shown in FIG. 5, the control unit 108 is supplied with power from a power source 201 such as a commercial power source or a generator, and generates a DC voltage. The control unit 108 generates a DC voltage output from the DC power source unit 10. An inverter circuit 12 for converting into an AC voltage for tube current / tube voltage, a control unit 16, and an inverter circuit 13 for heating the filament are provided. The filament heating inverter circuit 13 generates an AC voltage for heating the filament of the X-ray tube 102.

  The high voltage generator 108 includes a high voltage transformer 2, a high voltage rectifier circuit 4, a current detection circuit 5, a voltage detection circuit 6, and a filament heating transformer 3. The high voltage transformer 2 and the high voltage rectifier circuit 4 step up, rectify, and smooth the AC voltage output from the inverter circuit 12 to generate a tube voltage / tube current, and supply the tube voltage / tube current to the X-ray tube 102. The current detection circuit 5 and the voltage detection circuit 6 detect the tube current and the tube voltage, respectively, and pass them to the control unit 16. Thereby, the control part 16 feedback-controls the inverter circuit 12 so that a tube current and a tube voltage may become a desired value. The filament heating transformer 3 generates a predetermined current / voltage for heating the filament of the X-ray tube 102 and supplies it to the X-ray tube 102.

  In addition, the control part 16 confirms the recording of the angle detection part 210, and performs an error display etc. so that it may mention later at the time of power activation.

  The high voltage transformer 2, the filament heating transformer 3 and the high voltage rectifier circuit 4 are accommodated in a tank 8. The periphery of these circuits in the tank 8 is filled with electrical insulating oil for insulation, and a space is left in the upper part of the tank 8 to allow expansion of the electrical insulating oil.

  The high voltage generation device 108 and the entire control device 118 are disposed in the housing 119. An angle detector 210 is fixed to the side surface of the housing 119 as shown in FIG. As shown in FIG. 2, the angle detection unit 210 includes a guide member 201 that forms a first path 201-1, a second path 201-2, and a third path 201-3. The first path 201-1, the second path 201-2, and the third path 201-3 are all rectangular parallelepiped shapes with the lower ends closed, and the upper ends are connected to each other as shown in FIGS. . The upper part of the connecting portion is an opening, and the movable members 212 and 215 can be inserted into the first path 201-1 and the third path 201-3, respectively.

  The guide member 201 is tilted at a predetermined angle θ with respect to the horizontal direction in the axial direction of the first path 201 and the axial direction of the second path 201-2 is in the vertical direction with the housing 119 not tilted. It is being fixed to the side surface of the housing | casing 119 so that it may face. In the initial state, the movable member 212 is arranged on the first path 201-1 and the movable member 215 is arranged on the third path 201-3. As the movable members 212 and 215, for example, a sphere or a disk formed of a metal such as iron can be used.

  In addition, an erroneous movement preventing member 214 is disposed on the upper portion of the connecting portion. The upper end of the erroneous movement preventing member 214 is attached to the side surface of the guide member 201 with a hinge. As a result, when the housing 119 is inclined, the erroneous movement preventing member 214 is configured such that, for example, as illustrated in FIG. By covering the upper end opening of the three paths 201-3, the movable member 212 or 215 is prevented from moving between the first path 201-1 and the third path 201-3.

  The shape of the guide member 201 is not limited to the shape shown in FIG. 2, and any shape may be used as long as the movable members 212 and 215 are movable. For example, it may be a groove or rail shape that guides the movable member from the side surface, or may be a rail or bar-like member that penetrates the movable member.

  A detection unit 213 that detects whether or not the movable member 212 or 215 exists at the position of the second path 201-2 is disposed. Any detector 213 may be used as long as the movable members 212 and 215 can detect it. For example, a combination of a light emitting element and a photodetecting element arranged across the lower end of the second path 201-2, a magnetic sensor, a micro switch, a sensor that detects radio waves and electromagnetic waves emitted from the movable member 212 is used. Can do. In the case of using the light emitting element and the detection unit 213 of the light detection element, the movable members 212 and 215 are formed of a material that does not transmit light, and the guide member 201 constituting the second path 201-2 is the light of the light emitting element. For example, a transparent material is used, or the guide member 201 is provided with a through hole at a position where the light emitting element and the light detection element face each other. When using a magnetic sensor, the movable members 212 and 215 are formed of a magnetic material that generates magnetic flux. When the microswitch is used as the detection unit 213, the cantilever is disposed so as to protrude inward from the lower end surface or the side surface of the second path 201-2, and the cantilever is pushed down by the movable member 212. In the case of using a sensor that detects radio waves and electromagnetic waves, the movable members 212 and 215 use those that generate radio waves and electromagnetic waves of a predetermined wavelength, for example, spheres or disks in which IC chips are embedded.

  Further, in order to determine whether the movable member moved to the lower end of the second path 201-2 is the movable member 212 or 215, a detection unit 213 is provided at the lower end of the first path 201-1 as shown in FIG. The detection unit may be provided at the lower end of the third path 201-3. For example, in the configuration of FIG. 4, the detection unit 213 detects that the movable member is located at the lower end of the second path 201-2, and the detection unit 216 detects that there is no movable member in the first path 201-1. If so, the movable member 212 has moved. Therefore, it can be seen that the high voltage generator 108 is inclined in the direction in which the first path 201-1 is inclined more than horizontal. In the configuration of FIG. 4, the detection unit 213 detects that the movable member is located at the lower end of the second path 201-2, and the detection unit 216 detects that the movable member is in the first path 201-1. Then, it is the movable member 215 that has moved. It can be seen that the high voltage generator 108 is inclined in the direction in which the third path 201-3 is inclined more than the horizontal.

  In addition, it is also possible to discriminate the tilted direction by one detection unit 213 by using a detection unit 213 having a structure that can distinguish the movable member 212 and the movable member 215 as the detection unit 213 at the lower end of the second path 201-2. It is. For example, as the movable members 212 and 215, members that generate different reflected light or transmitted light are used, and the light detecting unit uses a detection unit that detects the wavelength of the reflected light or transmitted light, thereby determining the movable members 212 and 215. be able to. In addition, by embedding IC chips that generate radio waves and electromagnetic waves having different frequencies in the movable members 212 and 215, the movable members 212 and 215 can be determined based on the detection frequency.

  Here, the operation of the X-ray detection unit of the first embodiment will be described.

  In the present embodiment, an example in which the X-ray imaging apparatus is mounted on a vehicle such as a bus and constitutes a chest X-ray examination vehicle will be described.

  As shown in FIG. 2, an angle detection unit 210 is attached to the side surface of the housing 119 in which the high voltage generation unit 108 is housed, as shown in FIG. When the vehicle moves, the power source 201 is not connected to the control device 118. The allowable angle θ in FIG. 2 is set to 30 degrees.

  When the vehicle moves, travels on a slope, and the first path 201-1 is tilted by 30 degrees or more in the direction of tilting horizontally or more as shown in FIG. 3B, the movable member 212 starts to roll due to gravity, and is connected to the connecting portion. To reach. At this time, the erroneous movement preventing member 214 also inclines and closes the upper end of the third path 201-3, so that the movable member 212 enters the second path 201-2 from the connecting portion and reaches the lower end (position 202) by gravity. To do. The moving member 212 that has once moved to the lower end of the second path 201-2 is an irreversible structure that does not exit the second path 201-2, no matter how the high voltage generator 108 is tilted thereafter. It keeps recording that it inclined above (FIG.3 (c)).

  Further, when the third path 201-3 is tilted by 30 degrees or more in the direction of tilting more than horizontal, the moving member 215 moves to the lower end of the second path 201-2.

  When the vehicle arrives at the destination and the operator connects the power source 201 to the control device 118 and turns on the power of the X-ray imaging device, the control unit 16 performs a record reading operation of the angle detection unit 210. . Specifically, the control unit 16 includes a CPU and a memory, and operates as shown in the flow of FIG. 7 by reading and executing a program stored in the memory.

  First, when the power is turned on (step 71), the control unit 16 turns on the detection unit 213 and receives the detection result, whereby the moving member 212 or 215 is moved to the lower end of the second path 201-1 ( It is detected whether it is located at position 202) (step 72).

  In step 72, if neither of the moving members 212 and 215 is present at the lower end of the second path 201-1, it indicates that the high voltage generator 218 has not tilted more than the allowable angle θ during the movement. 73, the inverter 12 and the filament heating inverter 13 are controlled, and the filament heating power is supplied to the X-ray tube 102 in accordance with the operation of the operation unit 120 by the operator. X-rays are emitted from the X-ray tube 102. Thereby, X-ray imaging of the subject 100 is performed. After shooting, the end operation is performed according to the operator's instruction.

  On the other hand, if at least one of the moving members 212 and 215 is present at the lower end of the second path 201-1 in step 72, it indicates that the high voltage generator 218 has tilted more than the allowable angle θ during movement. . In this case, in the tank of the high voltage generator 108, a part of the circuit such as the high voltage converter 2 may be exposed to the air from the surface of the insulating oil, and discharge may occur. Therefore, the process proceeds to step 73, and a warning for prompting replacement of the control unit 16 high voltage generator 108, for example, an error display is given to the display unit 116 (step 75). And the control part 16 stops an apparatus by stopping operation | movement of the inverters 12 and 13 (step 76). Further, the control unit 16 communicates with the service station using a telephone line or the like, and notifies the service station that the vehicle has tilted beyond the allowable angle θ. Then, a serviceman is requested to perform maintenance and inspection such as replacement and repair of the high voltage generator 108 (step 77). In response to the communication from the control unit 16 or from the operator, the service person replaces or repairs the high voltage generator 108. At this time, the service person can confirm in which direction the inclination is made by confirming the positions of the two moving members 212 and 215 of the angle detection unit 210.

  As shown in FIG. 4, when the detection unit 216 is provided in the first route 201-1 or the third route 201-3, the control unit 16 outputs the detection result for the detection unit 216 in step 72 as well. By receiving it, the control unit 16 can determine which direction it is tilted, and can notify the operator or service person in steps 75 and 77.

  In step 76, X-ray imaging can be performed under certain conditions after performing an operation for confirming that no discharge occurs in the circuit of the high-voltage generator 108, rather than completely stopping the apparatus. It is also possible to make it.

  As described above, in the X-ray imaging apparatus according to the first embodiment, when the power supply power is not supplied to the X-ray imaging apparatus, it is recorded according to the position of the moving member whether or not the high voltage generator is tilted by a predetermined angle or more. can do. Therefore, the high voltage generator can be replaced or repaired at an appropriate timing, and a highly reliable X-ray imaging apparatus can be provided.

  The guide member 201 does not necessarily have three paths. As shown in FIG. 8, the guide member 201 has three configurations by arranging two sets of guide members having two paths in different directions. It is also possible to obtain the same operation and effect as the guide member 201 having a path.

  Further, by attaching the angle detector 210 to two orthogonal side surfaces (1) and (2) of the housing 119 as shown in FIG. 9, the inclination of the high voltage generator 108 can be detected in two directions. .

  In the configuration of the above-described embodiment, after the moving members 212 and 215 once move to the second path 201-2, the moving member cannot be returned to the position before the inclination. It is also possible to arrange a mechanism such as a solenoid coil that pushes up the moving member at the lower end of the lens, and return the moving member to the original position by operating the pushing-up mechanism when the power is turned on. In this case, the angle detector 210 can be used again.

(Second Embodiment)
As a second embodiment, an X-ray imaging apparatus including an angle detection unit 210 having another configuration will be described. This X-ray imaging apparatus is mounted on a vehicle as in the first embodiment, and constitutes a mobile X-ray examination vehicle. The angle detection unit 210 according to the second embodiment includes a semiconductor angle sensor that generates a signal corresponding to an inclination angle, and a semiconductor memory. When the semiconductor angle sensor generates a signal having an inclination angle greater than a predetermined angle, the semiconductor memory records that fact. The semiconductor angle sensor and the semiconductor memory are operated even when the vehicle is running by a micro power of a cigar socket of the vehicle or a battery such as a battery.

  Therefore, the power supply from the cigar socket is DC / DC converted to generate a necessary power supply, which is supplied to the circuit of the angle detection unit 210 shown in FIG. In the circuit of FIG. 10, the tilt sensor 81 is an IC whose output voltage changes according to the tilt angle. Here, a sensor whose output voltage increases as the tilt increases is used. The tilt sensor 81 is fixed to the side surface of the housing 119 of the high voltage generator 108 as in the first embodiment. The output of the tilt sensor 81 is input to the + terminal of the comparator 82. A circuit 84 that generates a predetermined positive reference voltage is connected to the negative terminal of the comparator 82. The comparator 82 has a configuration in which the output is set to 0 V when the voltage input to the + terminal becomes larger than the voltage input to the − terminal. The circuit 84 is arranged in parallel with the resistors R1 and R2 and the resistor R2, and includes a capacitor C1. By setting the resistance values of R1 and R2, respectively, a desired reference voltage can be generated. R1 and R2 are set so that the reference voltage becomes a value that matches the output voltage of the tilt sensor 81 having the maximum allowable angle.

  Accordingly, when the tilt angle becomes larger than the allowable angle, the output of the comparator 82 becomes 0 V, and the circuit 85 outputs a predetermined voltage signal to the control unit 16. The control unit 16 records that an output of a predetermined voltage signal is received (error) in the semiconductor memory 83 which is a nonvolatile memory.

  Accordingly, in the flow of FIG. 7 of the first embodiment, the control unit 16 confirms whether or not an error is recorded in the semiconductor memory 83 in step 72, whereby the power source 201 is supplied to the X-ray imaging apparatus. It can be confirmed whether the inclination during no vehicle movement has exceeded the allowable angle.

  In the circuit of FIG. 10, the circuit 85 includes a photocoupler 86 including a light emitting element and a detection element for detecting the light. As a result, the photocoupler 86 emits light, so that the operator can be notified that the tilt angle exceeds the allowable angle.

  Other configurations are the same as those of the first embodiment, and thus description thereof is omitted.

  In the second embodiment, instead of the inclination sensor 81, another element whose voltage changes as the angle changes can be used. For example, a weight can be hung on the potentiometer, and the resistance value of the potentiometer can change every time the inclination changes.

  In the configuration of FIG. 10, the comparator 82 is used. However, by converting the voltage from the tilt sensor 81 into an AD signal in a range that can be read by the CPU of the control unit 16 using an operational amplifier or the like, the CPU directly receives the voltage. It may be monitored whether a predetermined voltage is exceeded.

DESCRIPTION OF SYMBOLS 102 ... X-ray tube, 104 ... Aperture device, 110 ... X-ray detection part, 108 ... High voltage generator, 112 ... Image processing part, 114 ... Image memory | storage part, 116 memory | storage part, 118 ... Control apparatus, 120 ... Operation part , 210 ... Angle detection unit, 201 ... Guide member, 202 ... Predetermined position, 212 ... Movable member, 201-1 ... First path, 201-2 ... Second path, 201-3 ... Third path, 214 ... Error Movement preventing member, 215, movable member, 216, second detection unit

Claims (8)

An X-ray tube, a high-voltage generator that supplies power to the X-ray tube, and an angle detector that detects an inclination of the high-voltage generator,
X-ray imaging characterized in that the angle detection unit has a structure that records whether or not an inclination of a predetermined angle or more has occurred in the high-voltage generator without movement of power by moving a movable member. apparatus. The X-ray imaging apparatus according to claim 1, wherein the angle detection unit includes the movable member and a guide member that forms a path that inclines with the inclination of the high-voltage generator , When the inclination of the path reaches the predetermined angle or more, it is recorded whether or not the inclination of the predetermined angle or more has occurred by moving to a predetermined position along the path. X-ray equipment.   The X-ray imaging apparatus according to claim 2, wherein the angle detection unit further includes a detection unit configured to detect whether the movable member is present at the predetermined position. 4. The X-ray imaging apparatus according to claim 2, wherein the guide member is inclined at the predetermined angle with respect to a horizontal direction in a state where the high voltage generator is not inclined. And a second path along a vertical direction, and an upper end of the second path is connected to an upper end of the first path in a state where the high voltage generator is not inclined, and the second path The lower end of the path is the predetermined position,
The movable member is located at a lower end of the first path in a state where the high voltage generator is not inclined, and when the high voltage generator is inclined more than the predetermined angle, An X-ray imaging apparatus that records the inclination by moving along the first path, entering the second path, and moving to the lower end of the second path. The X-ray imaging apparatus according to claim 3 or 4, wherein the guide member further includes a third path connected to an upper end portion of the first path.
The third path is inclined symmetrically to the first path with respect to the vertical direction in a state where the high voltage generator is not inclined, and a second movable member is disposed in the third path. An X-ray imaging apparatus characterized by being arranged.   6. The X-ray imaging apparatus according to claim 5, wherein at least one of the first path and the third path is further provided with a second detection unit that detects whether the movable member is in the path. An X-ray imaging apparatus characterized by comprising:   6. The X-ray imaging apparatus according to claim 5, wherein a member that prevents the movable member from moving between the first path and the third path is provided at an upper end portion of the first path. An X-ray imaging apparatus characterized by that. An X-ray tube, a high-voltage generator that supplies power to the X-ray tube, an angle detector that detects the inclination of the high-voltage generator, and a controller.
The angle detection unit has a function of recording whether or not an inclination greater than a predetermined angle has occurred in the high voltage generator during a period in which a power supply voltage is not supplied to the high voltage generator,
Wherein, when the angle detector is recording that said the predetermined angle or more tilt occurs, and performs a notification for prompting maintenance of the high voltage generator to the operator X X-ray equipment.

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