JP5587102B2 - Radiation round wheel, radiographic imaging device, and radiographic imaging system - Google Patents

Description

  The present invention relates to a radiation round wheel, a radiographic imaging device, and a radiographic imaging system, and more particularly, a radiation round wheel and radiographic imaging in which a radiation image is taken by moving a radiation irradiation means and a radiation detection means in relative directions. The present invention relates to an apparatus and a radiographic imaging system.

  Conventionally, a radiographic imaging apparatus that performs radiography for medical diagnosis is known. In the radiographic imaging apparatus, a radiation irradiation unit that irradiates radiation and a radiation detection unit are connected by an arm or the like, and the subject is moved by moving the radiation irradiation unit and the radiation detection unit in a narrow place such as an operating room. When the radiographic image is taken, the work space is compressed.

  As a technique for moving a radiation irradiation unit and a radiation detection unit to capture a radiographic image of a subject, for example, Patent Document 1 and Patent Document 2 include an X-ray source and an X-ray composed of an FPD (Flat Panel Detector). A technique is described in which the center of the X-ray beam and the center of the FPD are always coincident with each other while maintaining the arrangement in which the line receiver is opposed to each other, and the synchronous movement of the subject M of the subject M in the supine position is sandwiched between them. ing.

  Further, in Patent Document 3, an image receiving part and a radiation source in a fluoroscopic imaging unit are connected by a predetermined mechanism including a guide, and the image receiving part and the radiation source are centered on a cross section of a subject to be imaged on a top plate. Describes a technique for parallel translation in opposite directions.

JP 2009-219556 A JP 2009-153928 A JP-A-6-245929

  However, the techniques described in Patent Documents 1 to 3 are insufficient for securing a sufficient work space for a user in a narrow space such as an operating room or a clinic, and appropriately capturing radiographic images. There is a case.

  It is an object of the present invention to provide a radiation round wheel and a radiographic imaging apparatus capable of appropriately taking radiographic images in a narrow space as compared with such a conventional technique.

To achieve the above object, the radiation mobile cart of claim 1, a moving means for moving a radiation emitting device for emitting radiation from the radiation generating unit to a subject, the pre-Symbol irradiation means, said In accordance with the movement of the radiation irradiating means by the moving means, the radiation detecting means moves in a direction opposite to the moving direction of the radiation irradiating means and detects radiation irradiated from the radiation irradiating means and transmitted through the subject. On the other hand, adjustment means for adjusting the irradiation angle of the radiation emitted from the radiation generating unit so that the radiation is emitted, irradiation operation for irradiating the radiation from the radiation irradiating means, and detection of the radiation by the radiation detecting means In synchronization with the detection operation to be performed, the radiation irradiating means emits radiation and the radiation detecting means detects the radiation. Comprising a Gosuru control means, wherein the moving means, when coupled to a predetermined guide, moving the radioactive radiation means along the predetermined guide, said control means, said predetermined When it is detected by the radiation irradiation means position detection means that detects that the radiation irradiation means provided in a given guide is at a predetermined position, the radiation irradiation means is at a predetermined position. Control is performed so that radiation is irradiated from the radiation irradiation means in synchronization with the irradiation operation and the detection operation.

Moving means moves the radiological irradiation means. In addition, when the moving unit is connected to a predetermined guide, the moving unit moves the radiation irradiating unit along the predetermined guide. The adjusting means moves in a direction opposite to the moving direction of the radiation irradiating means as the radiation irradiating means moves by the moving means so that the radiation detecting means for detecting the radiation is irradiated with radiation. The irradiation angle of the radiation irradiated from the radiation generation unit is adjusted. In addition, the control unit performs control so that the radiation image is captured by synchronizing the irradiation operation of irradiating the radiation from the radiation irradiation unit and the detection operation of detecting the radiation by the radiation detection unit. Further, the control means confirms that the radiation irradiating means is in a predetermined position by the radiation irradiating means position detecting means for detecting that the radiation irradiating means provided in the predetermined guide is in a predetermined position. If detected, the irradiation operation and the detection operation are synchronized so that radiation is emitted from the radiation irradiation means.

In this way, the moving means moves the radiation irradiating means so that the radiation detecting means moves in a relative direction to the radiation irradiating means, whereas the irradiation angle is adjusted and the irradiation operation and the detection operation are synchronized. Therefore, since radiographic images are captured, radiographic images can be appropriately captured in a narrow space.
In addition, when it is detected that the radiation irradiating means is at a predetermined position, the radiation image can be taken at an appropriate photographing position by irradiating the radiation from the radiation irradiating means.
Further, according to the present invention, as in the radiation round wheel according to claim 2, the control means detects the radiation by the radiation irradiation means position detecting means for detecting that the radiation irradiation means is at a predetermined position. By radiation detection means position detection means for detecting that the irradiation means is in a predetermined position and detecting that the radiation detection means provided in the predetermined guide is in a predetermined position When it is detected that the radiation detection means is at a predetermined position, control may be performed so that radiation is emitted from the radiation irradiation means.
As described above, when it is further detected that the radiation detecting means is located at a predetermined position, radiation is emitted from the radiation irradiating means, so that a radiographic image can be taken at an appropriate photographing position. For example, when performing tomosynthesis imaging, the movement distance of the radiation irradiating means and the movement distance of the radiation detecting means are different, so that they may not reach the imaging position at the same timing. In such a case, radiographic images can be taken by positioning more appropriately and easily.

Further, according to the present invention, as in the radiation round wheel according to claim 3 , the control means outputs a synchronization signal for performing the irradiation operation and the detection operation to the radiation irradiation means and the radiation detection means. In addition, the radiation may be emitted from the radiation irradiating unit at a predetermined frame rate based on the synchronization signal, and the radiation detecting unit may be controlled to detect the radiation.

Further, according to the present invention, as in the radiation round wheel according to claim 4 , the moving means has a tire, and the radiation irradiating means and the radiation detecting means are held by the rotation of the tire. The holding means is moved in the opposite direction, and the control means synchronizes the irradiation operation and the detection operation based on the number of rotations of the tire and irradiates the radiation from the radiation irradiation means. The radiation detection means may be controlled to detect radiation.

Further, according to the present invention, as in the radiation round wheel according to claim 5 , the control unit synchronizes the irradiation operation and the detection operation when the moving unit moves to a predetermined position. Then, the radiation may be emitted from the radiation irradiating means, and the radiation detecting means may be controlled to detect the radiation.

Further, according to the present invention, as in the radiation round wheel according to claim 6 , the predetermined position is a length in the moving direction of the radiation detection means held by a holding means for holding the radiation detection means. The position may be in accordance with

Further, according to the present invention, as in the radiation round wheel according to claim 7 , the radiation irradiating means may irradiate radiation for tomosynthesis imaging.

According to an eighth aspect of the present invention , there is provided a radiographic imaging apparatus comprising: the radiation round wheel of the present invention; and radiation detection means for acquiring radiation images by detecting radiation emitted from the radiation irradiation means of the radiation round wheel.

The radiographic imaging system according to claim 9 , the radiation round wheel of the present invention , radiation detection means for detecting a radiation emitted from the radiation irradiation means of the radiation round wheel, and acquiring a radiation image; and the radiation rounds A guide for moving the radiation irradiating means of the car, a moving means of the radiation round wheel, and a connecting means for connecting the holding means for holding the radiation detecting means so as to move in opposite directions, and and a bed which the subject is placed, wherein the radiation is emitted from the radiological irradiation means.

Further, according to the present invention, as in the radiographic imaging system according to claim 10 , the position of the radiation irradiation unit for detecting that the radiation irradiation unit of the radiation round wheel is in a predetermined position. You may make it provide a detection means.

Further, according to the present invention, as in the radiographic imaging system according to claim 11 , the bed includes radiation detection means position detection means for detecting that the radiation detection means is at a predetermined position. You may do it.

  As described above, there is an effect that radiographic images can be appropriately captured in a narrow space. According to the present invention, since it is a radiation round wheel, an effect that radiographic images can be taken in a narrower space can be obtained.

It is a functional block diagram which shows an example of schematic structure of the radiographic imaging system which concerns on this Embodiment. It is the top view seen from the upper part side of the radiographic imaging device for demonstrating the schematic structure of the radiographic imaging system which concerns on this Embodiment, and an example of the movement at the time of imaging | photography. It is the top view seen from the side (the subject's head or foot side) of a radiographic imaging device for explaining an example of the outline composition of the radiographic imaging system concerning this embodiment, and the movement at the time of imaging. It is the top view seen from the side (the side of a subject) of a radiographic imaging device for explaining an example of the outline composition of a radiographic imaging system concerning this embodiment, and the movement at the time of imaging. It is explanatory drawing which shows the connection state of the roundabout wheel 12 and the radiation detection panel 14 of the radiographic imaging which concern on this Embodiment. It is a flowchart which shows an example of the flow of the radiographic imaging process (synchronization process) in the round-trip car which concerns on this Embodiment.

  Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 shows a functional block diagram of an example of a radiographic image capturing system 1 (radiological image capturing apparatus 10) of the present embodiment. The radiographic image capturing apparatus 1 according to the present embodiment includes a radiographic image capturing apparatus 10 including a round wheel 12 and a radiation detection panel 14, and a bed 16.

  The roundabout wheel 12 includes a moving table 20, a radiation irradiation unit 22, a control unit 30, a user I / F unit 32, and a communication I / F unit 34.

  The control unit 30 has a function of controlling the operation of the entire round wheel 12 (the radiographic image capturing system 1), and includes a CPU (Central Processing Unit) 36, a ROM (Read Only Memory), and a RAM (Random Access Memory). And a non-volatile storage unit 39 including an HDD (Hard Disk Drive), a flash memory, and the like.

  In addition, the control unit 30 has a function of controlling the irradiation of the radiation from the radiation irradiation unit 22 to the subject 18, and in the present embodiment, the radiation irradiation unit 22 and the radiation detection panel 14 are positioned, In addition, it has a function of controlling to take a radiographic image in synchronization. In addition, the control unit 30 of the present embodiment has a function of adjusting the irradiation angle at which radiation is irradiated from the radiation irradiation unit 22 according to the positions of the radiation irradiation unit 22 and the radiation detection panel 14.

  The radiation irradiation unit 22 includes a radiation tube 23, and has a function of irradiating the subject 18 with radiation (for example, X-ray (X-ray) or the like) under the control of the control unit 30. The radiation irradiated from the radiation irradiating unit 22 passes through the subject 18 lying on the bed 16 so as to carry image information and is irradiated to the radiation detection panel 14. In the present embodiment, the radiographic image captured in this way is stored in the storage unit 39 or displayed on the external display device 50 via the communication I / F unit 34.

  The moving table 20 is a main body of the round wheel 12 including an arm 28 that supports the radiation irradiation unit 22 and a tire 29 for moving (see FIGS. 2 to 4). The moving table 20 is coupled to the guide rail 40 of the bed 16 so as to be movable along the bed 16 in the longitudinal direction of the bed 16. The power of movement of the round-the-wheel vehicle 12 may be automatic or manual by the user, and is not particularly limited, but is preferably configured to be automatic.

  The user I / F unit 32 is an interface having a function for the user to perform settings related to radiographic image capturing (for example, settings related to synchronous imaging), and examples thereof include a touch display and various buttons.

  The holding unit 24 has a function of holding the radiation detection panel 14. In the present embodiment, as a specific example, the radiation detection panel 14 is placed on a holding plate, the radiation detection panel 14 is fixed by a fixture 26, and the holding bar 27 is used along the bed 16. It is comprised so that it can move to the longitudinal direction of the bed 16 so that a movement is possible (refer FIGS. 2-4).

  The radiation detection panel 14 is an FPD (Flat Panel Detector), and has a function of acquiring a radiation image by detecting radiation irradiated from the radiation irradiation unit 22 and transmitted through the subject 18. Specific examples include a TFT substrate, a scintillator layer, and a cassette provided with a signal detection circuit.

  The bed 16 includes a guide rail 40, and a position detection sensor 42 is provided on the guide rail 40, and the position of the radiation irradiating unit 22 (the round wheel 12) and the radiation detecting panel 14 (the holding unit 24). The position is detected. The control unit 30 controls the position detection sensor 42 to capture a radiographic image in a state where both the radiation irradiation unit 22 and the radiation detection panel 14 are located at a predetermined imaging position.

  Next, with reference to FIGS. 2 to 5, a schematic configuration of the radiographic image capturing apparatus (rounding wheel) of this embodiment and movement during radiographic image capturing will be described. 2 to 4 show a case where so-called supine imaging is performed in which a radiographic image of the subject 18 lying on the bed 16 is captured. FIG. 2 shows a state of the radiographic image capturing apparatus 10 (round trip wheel 12) and the subject 18 in radiographic image capturing when viewed from the upper side of the radiographic image capturing apparatus 10. Moreover, FIG. 3 has shown the state seen from the lateral side (the head or the foot | leg side of the test object 18) of the radiographic imaging apparatus 10 (round-wheel 12). FIG. 4 shows a state viewed from the side of the radiographic imaging apparatus 10 (the side of the subject 18). FIG. 5 is an explanatory view showing a connection state between the round-wheel 12 and the radiation detection panel 14.

  In the round-wheel 12 of the present embodiment, the radiation irradiation unit 22 is held by the arm 28 of the moving table 20, and the radiation irradiation unit 22 moves by the rotation of the tire 29. Along with the movement of the round wheel 12, the holding unit 24 (radiation detection panel 14) connected to the guide rail 40 of the bed 16 moves relative to the round wheel 12 (radiation irradiation unit 22).

  The radiation detection panel 14 is placed on the holding unit 24 located below the subject 18 (bed 16). The holding unit 24 of the present embodiment fixes the radiation detection panel 14 with the fixture 26 so that the radiation detection panel 14 falls from the holding unit 24 or shifts when the round wheel 12 moves. In addition to preventing, the round wheel 12 and the radiation detection panel 14 are connected so that a signal such as a synchronization signal at the time of radiographic imaging can be transmitted and received from the control unit 30.

  Since the radiation irradiation unit 22 and the holding unit 24 move in the relative direction, the radiation detection panel 14 held by the holding unit 24 also moves in the relative direction with the radiation irradiation unit 22. At this time, because the distance from the guide rail 40 to the radiation irradiation unit 22 and the distance to the radiation detection panel 14 are different, the movement distance of the radiation irradiation unit 22 and the movement distance of the radiation detection panel 14 are different. Become. In addition, the height of the radiation irradiation unit 22 (distance from the guide rail 40) may vary depending on the radiographic image capture, and the movement distance of the radiation detection panel 14 varies depending on the radiographing. Therefore, in the present embodiment, as shown in FIG. 5, a plurality of gears 45A, B, and C are provided inside the guide rail 40, and the round wheel 12 is placed on the belt 46A that is strung over the gear 45A. The radiation detection panel 14 is connected to a belt 46B or 46C that is connected and is wound around a gear 45B or 45C smaller than the gear A. By doing in this way, when the rounding wheel 12 is moved, the movement amount of the radiation detection panel 14 can be made smaller than the movement amount of the radiation irradiation unit 22, and the radiation irradiation unit 22 and the radiation detection panel 14 can be reduced. Can move while maintaining a relative relationship with the imaging region of the subject 18.

  Further, in the present embodiment, the roundabout wheel 12 is connected to the guide rail 40 (the bed 16), and the distance between the roundabout wheel 12 and the subject 18 lying on the bed 16 is short, so the subject 18 contacts the roundabout wheel 12. A partition 41 is provided on the bed 16 to prevent this.

  Next, a radiographic image capturing operation by the radiographic image capturing apparatus 10 of the present exemplary embodiment will be described. FIG. 6 shows a flowchart of an example of the flow of radiographic image capturing processing by the control unit 30 of the round-wheel 12.

  This processing is executed by the CPU 36 processing a program stored in the memory 38. This process is executed when an instruction to start radiographic image capture is given from the user via the user I / F unit 32. In the present embodiment, it is assumed that the start of imaging is instructed in the state where the round-wheel 12 is set to the side of the bed 16 and the movement start (or imaging start) position.

  In step 100, the synchronization method setting is acquired from the storage unit 39. When taking a radiographic image, it is necessary to synchronize the radiation irradiation operation from the radiation irradiation unit 22 to the subject 18 and the radiation detection operation on the radiation detection panel 14, but the radiographic image of the present embodiment. In the imaging device 10 (round visit car 12), the user can set the synchronization method via the user I / F unit 32. The set synchronization method is stored in the storage unit 39. In the present embodiment, the synchronization method can be set by the user as described above. However, the setting of the synchronization method may be fixed, or from an external device via the communication I / F unit 34. It may be set by a service person or the like.

  In the next step 102, it is determined based on the position detection sensor 42 provided on the guide rail 40 whether or not the round-wheel 12 (radiation irradiation unit 22) and the holding unit 24 (radiation detection panel 14) are in the imaging position. To do. In the present embodiment, since the radiation irradiation unit 22 and the radiation detection panel 14 are moved separately, the imaging position may not be reached at the same timing. Even if one is at the imaging position, the other still reaches the imaging position. There may not be. In such a case, it is denied and enters a standby state. On the other hand, if both have reached the shooting position, the determination is affirmative and the routine proceeds to step 104.

  In the next step 104, it is determined whether or not it is the synchronization timing. If the synchronization timing has not yet been reached, a negative determination is made and a standby state is entered. On the other hand, if the synchronization timing has been reached, the determination is affirmed and step 106 is reached. move on.

  Although the following three methods are performed as the synchronization method by the round-trip car 12 of this Embodiment, it is not restricted to this, Other methods may be sufficient.

  The first is to output a synchronization signal to the radiation irradiating unit 22 and the radiation detecting panel 14 (holding unit 24) at a preset frame rate, causing the radiation irradiating unit 22 to perform an irradiating operation, and at the same time, the radiation detecting panel 14. This is a synchronization method in which the detection operation is performed. In this case, the frame rate is set in the storage unit 39 in advance.

  Second, in synchronization with the rotation (number of rotations) of the tire 29 of the round-wheel 12, a synchronization signal is output to the radiation irradiation unit 22 and the radiation detection panel 14 (holding unit 24), and the radiation irradiation unit 22 is irradiated. And a synchronization method for causing the radiation detection panel 14 to perform a detection operation. In this case, the rotation of the tire 29 is counted by a counter or the like (not shown), and is synchronized when it reaches a predetermined number of times.

  Third, when the round-wheel 12 is moved to a predetermined position, a synchronization signal is output to the radiation irradiation unit 22 and the radiation detection panel 14 (holding unit 24), and the radiation irradiation unit 22 is irradiated. And a synchronization method for causing the radiation detection panel 14 to perform a detection operation. For example, in the case of performing long imaging, there is a synchronization method in which radiographic images are captured in synchronization each time the radiation detection panel 14 moves in the moving direction of the round wheel 12. In this case, a means for detecting that a predetermined position has been moved (for example, a position detection sensor 42 such as a sensor for detecting that a predetermined position has been reached may be used). Composed.

  In step 106, after adjusting the angle which irradiates radiation to the radiation detection panel 14 from the radiation irradiation part 22, a synchronous signal is output to the radiation irradiation part 22 and the holding | maintenance part 24 (radiation detection panel 14). By the synchronization signal, the radiation operation of the radiation irradiation unit 22 and the detection operation of the radiation detection panel 14 are synchronized, and a radiographic image is taken. The adjustment of the irradiation angle includes a method in which the correspondence relationship between the photographing position and the irradiation angle is stored in the storage unit 39 in advance and the adjustment is performed based on the correspondence relationship. However, the adjustment is not limited thereto. .

  In the next step 108, it is determined whether or not to end radiographic image capturing. If not completed, the result is negative and the process returns to step 102. When the radiation irradiation unit 22 and the radiation detection panel 14 arrive at the imaging position again and reach the synchronization timing, the irradiation operation and the detection operation are synchronized to capture the radiation image. repeat. On the other hand, when the shooting is to be ended, the determination is affirmed and this processing is ended.

  The position detection sensor 42 provided on the guide rail 40 may be any sensor as long as the positions of the radiation irradiator 22 and the radiation detection panel 14 can be detected. It may be a sensor or the like, and is not particularly limited as long as it is provided at a predetermined photographing position.

  Further, the radiation of the present embodiment is not limited to X-rays, and γ-rays may be applied.

  In the present embodiment, the case where the guide rail 40 is provided on the bed 16 has been described in detail. However, the present invention is not limited to this. For example, the guide rail 40 may be provided on a floor or a wall.

  In addition, the configuration of the radiographic image capturing apparatus 10, the roundabout wheel 12, the radiation detection panel 14, the bed 16 and the like described in the present embodiment is an example, and can be changed according to the situation without departing from the gist of the present invention. Needless to say.

  Further, the flow of radiographic imaging processing described in the present embodiment (FIG. 6) is also an example, and it goes without saying that it can be changed according to the situation without departing from the gist of the present invention.

  As described above, in the radiographic imaging system 1 including the radiographic imaging apparatus 10 including the round wheel 12 and the radiation detection panel 14 and the bed 16 according to the present embodiment, the rounding wheel 12 is a radiation irradiation unit. 22 is moved in a relative direction to the holding unit 24 holding the radiation detection panel 14. Further, the control unit 30 adjusts the radiation irradiation angle of the radiation irradiation unit 22 so that the radiation detection panel 14 is irradiated with radiation according to the imaging position, and the synchronization method set in the storage unit 39 is used. Accordingly, the radiation operation of the radiation irradiation unit 22 and the detection operation of the radiation detection panel 14 are synchronized, and a radiographic image is taken.

  In this manner, since the roundabout wheel 12 moves the radiation irradiation unit 22 and the radiation detection panel 14 in the relative direction and the radiographic image is taken by adjusting the irradiation angle and the synchronization process of the control unit 30, the narrow space is used. The radiographic image can be appropriately captured. Therefore, the user's work space can be secured. Further, since the imaging is performed when the radiation detection unit 22 and the radiation detection panel 14 reach the imaging position by the position detection sensor 42, the relative positioning of the radiation irradiation unit 22 and the radiation detection panel 14 can be easily performed. .

  Moreover, since it comprises as the round-wheel 12, it can be made more space-saving and can be moved easily. Moreover, since the radiation irradiation part 22 and the radiation detection panel 14 move in a relative direction and positioning is easy, tomosynthesis imaging can be easily performed at low cost.

DESCRIPTION OF SYMBOLS 10 Radiation imaging device 12 Round-trip wheel 14 Radiation detection panel 16 Bed 20 Moving stand 22 Radiation irradiation part 24 Holding part 28 Arm 29 Tire 30 Control part 39 Storage part 40 Guide rail 42 Position detection sensor

Claims (11)

Radiation irradiating means for irradiating the subject with radiation from the radiation generating unit;
Moving means for moving the front Symbol irradiation means,
As the radiation irradiating means moves by the moving means, the radiation detecting means moves in a direction opposite to the moving direction of the radiation irradiating means and detects radiation irradiated from the radiation irradiating means and transmitted through the subject. In contrast, adjustment means for adjusting the irradiation angle of the radiation emitted from the radiation generation unit so that the radiation is emitted,
The irradiation operation of irradiating the radiation from the radiation irradiation unit and the detection operation of detecting the radiation by the radiation detection unit are synchronized to irradiate the radiation from the radiation irradiation unit and to detect the radiation by the radiation detection unit. Control means for controlling
Equipped with a,
When the moving means is connected to a predetermined guide, the moving means moves the radiation irradiating means along the predetermined guide,
The control means has the radiation irradiating means in a predetermined position by a radiation irradiating means position detecting means for detecting that the radiation irradiating means provided in the predetermined guide is in a predetermined position. When detecting this, the irradiation operation and the detection operation are synchronized and controlled to irradiate radiation from the radiation irradiating means.
Radiation round wheel. The control means detects that the radiation irradiating means is at a predetermined position by the radiation irradiating means position detecting means for detecting that the radiation irradiating means is at a predetermined position; and When it is detected that the radiation detection means is in a predetermined position by a radiation detection means position detection means for detecting that the radiation detection means provided in a predetermined guide is in a predetermined position, The radiation round wheel according to claim 1 , wherein the radiation irradiation wheel is controlled to emit radiation from the radiation irradiation unit. The control means outputs a synchronization signal for performing the irradiation operation and the detection operation to the radiation irradiation means and the radiation detection means, and at a frame rate determined in advance based on the synchronization signal, The radiation round wheel according to claim 1 or 2 , wherein the radiation irradiating means controls the radiation detecting means to detect radiation by the radiation detecting means. The moving means has a tire, and when the tire rotates, the radiation irradiating means and a holding means for holding the radiation detecting means are moved in opposite directions, and the control means based on the rotational speed, and the irradiation operation, the detection operation and to synchronize, dissipate the radiation emitting device, controls to detect radiation by the radiation detecting device, according to claim 1, wherein Item 3. Radiation round wheel according to item 2 . When the moving means has moved to a predetermined position, the control means synchronizes the irradiation operation and the detection operation to irradiate the radiation from the radiation irradiating means, and the radiation detecting means The radiation round wheel according to claim 1 or 2 which controls to detect radiation. 6. The radiation round wheel according to claim 5 , wherein the predetermined position is a position corresponding to a length in a moving direction of the radiation detection means held by a holding means for holding the radiation detection means.   The radiation round wheel according to any one of claims 1 to 6, wherein the radiation irradiation unit irradiates radiation for tomosynthesis imaging. The radiation round-trip wheel according to any one of claims 1 to 7 ,
Radiation detecting means for detecting radiation emitted from the radiation irradiating means of the radiation round wheel and obtaining a radiation image;
A radiographic imaging apparatus comprising: The radiation round-trip wheel according to any one of claims 1 to 7 ,
Radiation detecting means for detecting radiation emitted from the radiation irradiating means of the radiation round wheel and obtaining a radiation image;
A guide for moving the radiation irradiating means of the radiation round wheel, a moving means of the radiation round wheel, and a connecting means for connecting the holding means for holding the radiation detecting means so as to move in opposite directions; a bed which the subject is placed, wherein the radiation is irradiated to provided, and from the radiological irradiation means,
Radiographic imaging system equipped with. The radiographic imaging system according to claim 9 , wherein the bed includes a radiation irradiation unit position detection unit for detecting that the radiation irradiation unit of the radiation round wheel is located at a predetermined position . The radiographic imaging system according to claim 10 , wherein the bed includes a radiation detection unit position detection unit for detecting that the radiation detection unit is located at a predetermined position .

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