JP6312445B2 - Radiography apparatus and radiation imaging system - Google Patents

Description

  The present invention relates to a radiation imaging apparatus and a radiation imaging system.

  2. Description of the Related Art In recent years, portable devices have been put into practical use as radiation imaging apparatuses are reduced in size and weight. In a portable radiographic apparatus, it is necessary to achieve both sufficient strength and portability so that damage is not caused by an impact caused by a drop due to careless carrying or use. For this reason, materials with low specific gravity and high strength are preferably used for the housing of the radiographic apparatus. Inside the housing are a radiation sensor panel that converts radiation into an electrical signal, and electrical circuit boards that control the radiation sensor panel. And in order to protect these from external impact, patent document 1, 2 has proposed the technique which arrange | positions buffer members, such as an air bag, between a housing and a radiation sensor panel. The buffer member provides a buffering effect against an impact from the outside of the casing and a dispersion effect with respect to an applied load. Patent Document 2 discloses a technique for arranging a support portion between a radiation sensor panel and a housing so that electric circuit boards are not damaged or the housing is not greatly bent inward by a load applied to the housing. Proposed.

Japanese Patent No. 3815792 JP 2013-72808 A

  However, in the methods disclosed in Patent Documents 1 and 2, if an impact is applied to the radiation incident surface side and the opposite surface side of the housing where the above-described support portion is disposed, the impact is applied to the housing and the radiation sensor panel. The impact load is greater than other parts other than the part where the support part is disposed. In other words, the methods disclosed in Patent Documents 1 and 2 have room for study on the dispersion effect with respect to the impact load.

  Therefore, an object of the present invention is to provide a radiographic apparatus that can obtain a better dispersion effect with respect to an external impact load.

A radiation imaging apparatus according to the present invention includes a radiation sensor panel that converts radiation into an image signal, a housing that includes the radiation sensor panel, a support that supports the radiation sensor panel with respect to the housing, and the radiation sensor. It is arranged between the radiation sensor panel and the casing on the opposite side of the support portion of the panel, and the region where the pressure generated in the radiation sensor panel is high when the support portion supports and from the outside of the housing A region having a high performance for mitigating impact has a corresponding buffer member.

  An object of this invention is to provide the radiography apparatus which can obtain the better dispersion effect with respect to the impact load from the outside.

It is a figure which shows the radiography system in Example 1. FIG. It is a figure which shows the front view and cross-sectional structure of the radiography apparatus in Example 1. FIG. 1 is a diagram illustrating an internal structure of a radiation imaging apparatus according to Embodiment 1. FIG. 1 is a diagram illustrating an internal structure of a radiation imaging apparatus according to Embodiment 1. FIG. It is a figure which shows the cross-section of the radiography apparatus in Example 2. FIG. It is a figure which shows the cross-section of the radiography apparatus in Example 3. FIG. It is a figure which shows the cross-section of the radiography apparatus in Example 4. FIG. It is a figure which shows the internal structure of the radiography apparatus in Example 4. FIG. It is a figure which shows the internal structure of the radiography apparatus in Example 4. FIG. It is a schematic diagram which shows the example of application to a radiography system.

Example 1
Examples of the present invention will be described below.

  FIG. 1 is a diagram showing a schematic configuration of a radiation imaging system in the present embodiment. At the time of capturing a radiographic image, an object to be imaged 20 is arranged between the radiation generator 10 and the radiation imaging apparatus 100, and the radiation transmitted through the object to be imaged 20 is read by the radiation imaging apparatus 100, and a radiographic image is obtained as image information. Get.

  FIG. 2 is a diagram illustrating the radiation imaging apparatus 100 according to the present embodiment. 2A is a front view as seen from the radiation incident surface, and FIG. 2B is a cross-sectional view taken along the line AA in FIG.

  The radiation imaging apparatus 100 according to the present embodiment includes a radiation sensor panel 140 that converts radiation into an image signal, and a housing that contains the radiation sensor panel 140. Further, the radiation imaging apparatus 100 includes a support unit 150 that supports the radiation sensor panel 140 with respect to the housing. Furthermore, the radiation imaging apparatus 100 includes a buffer member 160 disposed between the radiation sensor panel 140 and the housing on the side opposite to the support portion 150 of the radiation sensor panel 140. The shock-absorbing member 160 has a performance of mitigating an impact from the outside of the casing. In the buffer member 160, the distribution of the pressure generated on the radiation sensor panel 140 by the support unit 150 supporting the radiation sensor panel 140 corresponds to the distribution of the performance of the buffer member 160 that reduces the external impact. It is prescribed.

  The radiation sensor panel 140 has a first surface and a second surface. The first surface of the radiation sensor panel 140 is a surface on which a plurality of photoelectric conversion elements are arranged, and the second surface of the radiation sensor panel 140 is a surface facing the first surface. In Example 1, radiation is incident from the first surface side. Further, the buffer member 160 is a member for alleviating external impact. Hereinafter, each configuration will be described in detail.

  A radiation sensor panel 140 in which a plurality of photoelectric conversion elements are disposed on a glass substrate is disposed inside the radiation imaging apparatus 100. A phosphor 141 that converts radiation into visible light is disposed on the first surface side of the radiation sensor panel 140 where the plurality of photoelectric conversion elements are disposed. The phosphor 141 emits light by the radiation applied to the radiation imaging apparatus 100, and the photoelectric conversion elements of the radiation sensor panel 140 convert the light into image signals. This image signal is transmitted from the radiation sensor panel 140 to the electric circuit board 143 via the flexible board 142.

  The electric circuit board 143 is disposed between the second surface side of the radiation sensor panel 140 and the inner wall of the housing. The electric circuit board 143 is a board for processing image signals and controlling the radiation sensor panel 140.

  The base 144 is disposed between the radiation sensor panel 140 and the support unit 150 and bonded to the second surface side (opposite to the radiation incident surface) facing the first surface with respect to the radiation sensor panel 140. . The base 144 holds the radiation sensor panel 140 and has a rigidity necessary for holding the radiation sensor panel 140 so as not to be deformed or cracked by an external load or vibration during transportation.

  The support part 150 supports the radiation sensor panel 140 with respect to the housing. In the present embodiment, the support part 150 is disposed on the second surface side of the radiation sensor panel 140. Here, a region supported by the support unit 150 on the second surface of the radiation sensor panel 140 is defined as a support region. The support unit 150 supports the radiation sensor panel 140 with one or a plurality of support regions. The radiation sensor panel 140 is supported by the support unit 150, thereby generating a predetermined pressure distribution in the support region and other regions. Furthermore, the predetermined distribution of the pressure generated in the radiation sensor panel 140 is at least when the pressure generated in the radiation sensor panel 140 is different in one support region or when the pressure generated in the radiation sensor panel 140 is different for each of the plurality of support regions. Including any one. Since the support unit 150 can support the radiation sensor panel 140 with a plurality of support regions, the support unit 150 can be arranged according to the configuration in the radiation imaging apparatus 100 and the rigidity of the radiation sensor panel 140.

  The buffer member 160 is disposed on the opposite side of the support unit 150 with respect to the radiation sensor panel 140. In this embodiment, the radiation sensor panel 140 is disposed on the first surface side. In addition, the buffer member 160 has a distribution of performance (buffer effect) for mitigating impact from the outside of the casing, which will be described later. The buffer member 160 is defined so that the buffer effect of the buffer member corresponds to a predetermined distribution of pressure generated in the sensor panel 140 by the support unit 150. Further, the distribution of the buffer effect of the buffer member 160 indicates that the buffer effect is different for each predetermined range in the buffer member 160 due to a difference in material and shape.

  The housing of the radiation imaging apparatus 100 of the present embodiment includes a front housing 110, a rear housing 120, and a radiation transmitting plate 130. The housing includes the radiation sensor panel 140, the support portion 150, and the buffer member 160. For the front housing 110 and the rear housing 120, low specific gravity materials such as aluminum, magnesium, and CFRP are preferably used in order to reduce the weight for the purpose of securing strength against dropping or impact and reducing the burden during transportation. Yes. Since the radiation transmitting plate 130 is disposed on the radiation incident surface side and has a low radiation absorption rate, and it is desirable to ensure a certain strength against impacts even if it is light, for example, CFRP is generally used. On the radiation transmitting plate 130, indices 131 and 132 for indicating the reading center and reading range of the radiation sensor panel 140 are marked. The front housing 110, the rear housing 120, and the radiation transmission plate 130 may each have an integral structure.

  Further, if necessary, a radiation shielding member (not shown) having a role of suppressing deterioration of the electric circuit board 143 due to radiation irradiation or removing scattered radiation from the rear of the radiation imaging apparatus 100 is attached to the base 144. . The radiation shielding member is made of a high specific gravity material such as molybdenum, iron, or lead.

  FIG. 3 is a diagram showing the radiation imaging apparatus 100 as seen from the second surface side (the opposite side to the radiation incident direction) of the radiation sensor panel 140 with the rear housing 120 removed. A support portion 150 is provided on the base 144 so that a load from the outside of the housing facing the second surface of the radiation sensor panel 140 does not directly act on the electric circuit board 143. Therefore, the support part 150 supports the housing and the radiation sensor panel 140 as shown in FIG. The support part 150 has, for example, a rib shape or a columnar shape, and is appropriately disposed in a region such as a gap of the electric circuit board 143. Further, the support portion 150 may be integrated with the rear casing 120.

  FIG. 4 is a view showing the shape of the buffer member 160 disposed on the radiation incident surface side of the radiation sensor panel 140. It is desirable that the material of the buffer member 160 has a low radiation absorption coefficient. The buffer member 160 preferably has a difference in radiation transmittance between an orthographic projection area described later and other areas of 1% or less. With this configuration, the radiographic apparatus 100 can acquire a good radiographic image while the buffer member 160 has a distribution of the buffer performance. For example, a material made of silicon or urethane-based foam material, silicon gel, air sac filled with gas, or the like is preferably used. The buffer member 160 provides a dispersion effect for a load from the outside of the housing, particularly a load applied to the radiation incident surface, and a buffer effect for an impact.

  Here, the buffer member 160 has a buffering effect against an impact in an area in which the support area of the support portion 150 is orthographically projected onto the buffer member 160 (hereinafter referred to as an orthographic projection area) compared to other areas different from the orthographic projection area. Is different. In the orthographic projection area, when the support area of the support portion 150 is slightly wider than the area projected onto the buffer member 160, the stress is not concentrated in the orthographic projection area and is dispersed, so that a buffering effect is easily obtained.

  In this embodiment, the buffer member 160 is provided with a gap in the orthographic projection area. This void portion may include, for example, orthographic projection regions of the plurality of support portions 150. When an impact is applied to the portion corresponding to the first surface side of the gap from the outside of the housing, the radiation transmitting plate 130 and the phosphor 141 do not come into contact with each other. Don't join. The impact load is transmitted to the phosphor 141 at the buffer member 160 portion at the end of the gap. At this time, since the portion of the shock absorbing member 160 to which the impact load is transmitted is not supported by the support portion 150, the phosphor 141, the radiation sensor panel 140, and the base 144 are bent, and the effect of absorbing the impact due to the deformation is absorbed. Is obtained and the impact load is reduced. Therefore, the impact load can be reduced and distributed as compared with the case where the impact load is directly applied to the orthographic projection region. Further, when the orthographic projection area is, for example, a circular gap, the impact load is applied to the circumference, so that the load is applied in a wider area than when a local point load is directly transmitted. Stress is relieved because it receives. Even if it is the impact load to the 2nd surface side of the support part 150, stress is relieved and the effect is acquired.

  According to the present embodiment, the radiation imaging apparatus 100 can obtain a good dispersion effect with respect to the impact load from the outside of the housing to the first surface side of the support portion 150. Therefore, in the radiation imaging apparatus 100, the rigidity of the housing and the performance of relaxing the buffering of the buffering member 160 can be defined based on the portion that does not have the support 150. Further, the buffer member 160 having a thickness smaller than that of the conventional one can be used, and sufficient strength against an impact applied to the radiation transmitting plate 130 from the outside of the housing is secured while suppressing an increase in the thickness of the radiation imaging apparatus 100. It is also possible.

(Example 2)
FIG. 5 is a diagram for explaining the second embodiment. In the second embodiment, a case will be described in which the area of the support region of the support unit 150 is larger than that of the configuration shown in the first embodiment. In the buffer member in this embodiment, the first buffer member 161 is disposed in the orthographic projection region, the second buffer member 162 is disposed in a region other than the orthographic projection region, and the first buffer member 161 is the second buffer member. This is different from the first embodiment in that the elastic modulus is smaller than that of the buffer member 162. This embodiment is particularly suitable when the area of the support region supported by the support unit 150 is larger than the support surface of the radiation sensor panel 140.

  When the area of the support region of the support part 150 is large, as shown in the first embodiment, when the gap part is provided in the buffer member, the area of the gap part increases in proportion to the area of the support part 150. For this reason, when the gap is increased, if a load from the outside of the housing is applied to the radiation first surface (radiation incident surface) side of the gap, the radiation transmitting plate 130 is greatly bent, and becomes dotted with the phosphor 141. It will contact, and sufficient stress relaxation effect will not be acquired. This is not limited to the case where the area of the support part 150 is large, and the same applies to the case where the area of the gap part is increased by densely supporting the part 150 and using the orthographic projection area containing them as the gap part.

  Here, in the present embodiment, the first buffer member 162 is arranged in the orthographic projection region on the first surface side (radiation incident surface side) of the radiation sensor panel 140, and other regions other than the region described above. The other second buffer member 161 is disposed in the case. As compared with the second buffer member 161, the first buffer member 162 is made of a soft material having a low elastic modulus. When an impact is applied from the outside of the housing to the first surface side (radiation incident surface side) of the first buffer member 162, the impact is distributed within the range of the first buffer member 162 due to the load dispersion effect of the first buffer member 162. The load is distributed. Furthermore, when the first buffer member 162 is deformed to some extent and the radiation transmitting plate 130 is bent, the second buffer member 161 is mainly subjected to a load next, so that the impact load can be effectively distributed over a wide range. I can do it.

  In addition, the magnitude | size of the elastic modulus of the 2nd buffer member 161 is designed according to the support area of the support part 150, and it is suitable to select a material with a small elastic modulus, so that a support area is large. It is more effective to arrange a buffer member having intermediate hardness between the second buffer member 161 and the first buffer member 162 to change the elastic modulus step by step.

  According to the present embodiment, regardless of the support area of the support portion 150, a better dispersion effect can be obtained with respect to an impact applied to the housing from the outside of the housing, particularly an impact applied to the radiation transmitting plate 130 from the outside of the housing. And sufficient strength can be ensured.

(Example 3)
FIG. 6 is a diagram for explaining the third embodiment.

  If the buffer member in the orthographic projection area and the buffer members in other locations are different in structure, there is a risk that the radiographic image will be affected by the difference in radiation transmittance depending on the thickness and material of the buffer member. Therefore, in this embodiment, a configuration in which the influence on the radiographic image due to the difference in the material of the buffer member and the radiation transmittance will be described.

  In this embodiment, a sheet-like silicon or urethane foam material having a certain thickness is used for the buffer member. Here, the orthographic projection region of the buffer member is compressed in advance to crush the foamed portion inside. For example, when a sheet material having a volume ratio of the foaming region of 60% is used, the thickness can be reduced to 0.4 times. The foamed sheet that is partially compressed and thinned in this way is used as the buffer member. Since the compression unit 164 and the non-compression unit 163 have the same material and density per unit area, there is almost no difference in radiation transmittance. Therefore, the radiographic image is not affected due to the different materials of the buffer member. In addition, when an impact is applied to the first surface side (radiation incident surface side) of the compression unit 164, since there is a gap between the radiation transmission plate 130 and the compression unit 164, the first surface side ( The impact load is not directly applied to the area on the radiation incident surface side. Since the impact load is transmitted through the non-compressed portion, the same effect as that shown in the first embodiment can be obtained.

  Instead of providing the compression portion 164, another member having a radiation transmittance equivalent to that of the buffer member and having a thickness smaller than that of the buffer member is used as the gap portion. It may be placed inside the. In the buffer member, the difference in radiation transmittance between the orthographic projection area and other areas is preferably 1% or less.

  According to this embodiment, it is possible to ensure sufficient strength against an impact applied to the radiation transmission plate 130 from the outside of the housing without causing a shadow due to a difference in radiation transmittance of the buffer member in the radiographic image. It becomes possible.

Example 4
7 to 9 are diagrams for explaining the fourth embodiment. In this embodiment, it is assumed that radiation is incident from the second surface side. Also, the radiation imaging apparatus 100 in the present embodiment is different from the first to third embodiments in that a support portion 150 is disposed on the first surface side of the radiation sensor panel 140 and a buffer member 160 is disposed on the second surface side. ing.

  In the present embodiment, a configuration in which the radiation sensor panel 140 is attached to the radiation transmitting plate 130 will be described. The radiation transmitting plate 130 plays the role of a base that holds the radiation sensor panel 140 so as to suppress deformation. For this reason, the radiation imaging apparatus 100 does not constitute a base on the first surface side (the side opposite to the radiation incident surface) of the radiation sensor panel 140, which contributes to reduction in thickness and weight of the apparatus. This configuration is particularly effective when the phosphor 141 is configured on the surface of the radiation sensor panel 140 that faces the radiation incident surface. This is because the radiation sensor panel 140 can be directly attached to the radiation transmitting plate 130 without using the phosphor 141, so that the strength can be secured regardless of the peel strength of the phosphor 141. A shield plate 145 is disposed between the electric circuit board 143 and the radiation sensor panel 140. The shield plate 145 is made of, for example, aluminum, and plays a role of shielding the electrical noise generated between the radiation sensor panel 140 and the electric circuit board 143 and mechanically fixing the electric circuit board 143 and connecting it to the ground. Have. By making it with relatively thin material without rigidity, it contributes to reduction in thickness and weight.

  The arrangement of the support part 150 will be described with reference to FIG. The support part 150 is provided on the electric circuit board 143. When the base was provided on the first surface side of the radiation sensor panel 140 (opposite the radiation incident surface), the load from the rear housing 120 side was dispersed by the rigidity of the base. However, in this configuration, since the shield plate 145 does not have rigidity, the load can be distributed by the rigidity of the electric circuit board 143 by providing the support portion 150 on the electric circuit board 143. Even when the area occupied by the electric circuit board 143 is large and there are not enough gaps, it is effective to provide the support portion 150 on the electric circuit board 143.

  The buffer member is composed of a sheet material 165 having adhesiveness on both sides. The sheet material also has a role of adhering the radiation sensor panel 140 and the radiation transmission plate 130, and can ensure the rigidity of the radiation sensor panel 140. As shown in FIG. 9, by providing a gap on the radiation incident surface side of the support 150, the impact load relaxation effect and the dispersion effect can be obtained as shown in the first embodiment.

  According to the present embodiment, even in the configuration in which the radiation sensor panel 140 is attached to the radiation transmitting plate 130, it is possible to ensure sufficient strength against an impact applied to the radiation transmitting plate 130 from the outside of the housing.

(Example 5)
FIG. 10 is a schematic diagram showing an application example to the radiation imaging system 101 which is an embodiment of the radiation imaging apparatus of the present invention. The radiation imaging apparatus 100 according to any one of the embodiments of the present invention is applied to the radiation imaging system 101 which is an embodiment of the radiation imaging apparatus. The radiation imaging apparatus 6040 in the present embodiment corresponds to the radiation imaging apparatus in the present invention.

  The radiation imaging system 101 includes an X-ray tube 6050 as a radiation source, a radiation imaging apparatus 6040, an image processor 6070 as a signal processing unit, and displays 6080 and 6081 as display units. Further, the radiation imaging system 101 includes a film processor 6100 and a laser printer 6120 in addition to these.

  Radiation (X-rays) generated by the X-ray tube 6050 serving as a radiation source passes through the imaging region 6062 of the subject 6061 and enters the radiation imaging apparatus 6040. The radiation incident on the radiation imaging apparatus 6040 includes information inside the imaging region 6062 of the subject 6061.

  When radiation enters the radiation imaging apparatus 6040, the scintillator layer 13 emits light according to the incident radiation, and the photoelectric conversion element array 11 photoelectrically converts light emitted from the scintillator layer 13. Thereby, information on the imaging region 6062 of the electrical subject 6061 is obtained. This information is converted into a digital format and output to an image processor 6070 as signal processing means.

  The image processor 6070 as a signal processing unit is a computer including a CPU, a RAM, and a ROM. Further, the image processor 6070 has a recording medium capable of recording various types of information as recording means. For example, the image processor 6070 has a built-in HDD, SSD, recordable optical disk drive, or the like as recording means. Alternatively, the image processor 6070 may be externally connectable to an HDD or SSD as a recording unit, a recordable optical disk drive, or the like.

  Then, an image processor 6070 as a signal processing unit performs predetermined signal processing on the information and displays the information on a display 6080 as a display unit. Thereby, the subject and the examiner can observe the image. Further, the image processor 6070 can record this information on an HDD, SSD, or recordable optical disk drive as a recording means.

  The image processor 6070 may be configured to have an interface capable of transmitting information to the outside as information transmission means. As such an interface as a transmission means, for example, an interface to which a LAN or a telephone line 6090 can be connected is applicable.

  The image processor 6070 can transmit this information to a remote place through an interface as a transmission means. For example, the image processor 6070 transmits this information to a doctor room at a location away from the X-ray room in which the radiation imaging apparatus 6040 is installed. Thereby, a doctor or the like can diagnose the subject in a remote place. The radiation imaging system 101 can also record this information on the film 6120 by a film processor 6100 as a recording means.

  Although the present invention has been described in detail based on the embodiments, the present invention is not limited to these specific embodiments, and various forms within the scope of the present invention are within the scope of the present invention. included. Furthermore, each embodiment mentioned above is only what shows one embodiment of this invention, and it is also possible to combine each embodiment suitably.

DESCRIPTION OF SYMBOLS 100 Radiography apparatus 110 Front housing | casing 120 Rear housing | casing 130 Radiation transmission board 140 Radiation sensor 143 Electric circuit board 144 Base 150 Supporting part 160 Buffer member 161 1st buffer member 162 2nd buffer member 163 Compression part 164 Non-compression Part 165 Sheet material 101 Radiography system

Claims (16)

A radiation sensor panel for converting radiation into image signals;
A housing containing the radiation sensor panel;
A support portion for supporting the radiation sensor panel with respect to the housing;
The radiation sensor panel is disposed between the radiation sensor panel and the housing on the opposite side of the support part, and the support part supports the region where the pressure generated in the radiation sensor panel is high and the housing. A radiation imaging apparatus comprising: a buffer member corresponding to a region having a high performance for mitigating external impact.   In the orthographic projection area obtained by orthographically projecting the support area in which the support portion supports the radiation sensor panel on the cushioning member, the buffer member has the performance higher than that of the other area different from the orthographic projection area in the cushioning member. The radiation imaging apparatus according to claim 1, wherein the radiation imaging apparatus is high.   The radiation imaging apparatus according to claim 2, wherein the buffer member is a buffer member in which a gap is provided in the orthographic projection region. The buffer member is composed of a first buffer member disposed in the orthographic projection region and a second buffer member disposed in the other region,
The radiation imaging apparatus according to claim 2, wherein the first buffer member has a smaller elastic modulus than the second buffer member.   The radiographic apparatus according to claim 2, wherein the buffer member has a thickness smaller in the orthographic projection area than in the other area.   The radiographic apparatus according to claim 2, wherein the buffer member has a difference in radiation transmittance between the orthographic projection area and the other area of 1% or less.   The radiation imaging apparatus according to claim 6, wherein the buffer member is a foam material in which the orthographic projection area is compressed. It said support portion, the radiation imaging apparatus according to any one of claims 1 to 7, characterized in that for supporting the radiation sensor panel in one or more areas of support. The radiation imaging apparatus according to claim 1, further comprising a base that is disposed between the radiation sensor panel and the support portion and holds the radiation sensor panel . The radiography according to any one of claims 1 to 9, further comprising an electric circuit board disposed between the radiation sensor panel and the support portion for controlling the radiation sensor panel. apparatus. The radiation sensor panel has a first surface on which a plurality of photoelectric conversion elements are arranged, and a second surface facing the first surface,
The buffer member is disposed on the first surface side of the radiation sensor panel,
The radiation imaging apparatus according to claim 1, wherein the support portion is disposed on the second surface side of the radiation sensor panel. The radiation sensor panel has a first surface on which a plurality of photoelectric conversion elements are arranged, and a second surface facing the first surface,
The buffer member is disposed on the second surface side of the radiation sensor panel,
The radiation imaging apparatus according to claim 1, wherein the support portion is disposed on the first surface side of the radiation sensor panel.   The radiation imaging apparatus according to claim 1, wherein the buffer member is a sticky sheet material, and bonds the radiation sensor panel and the housing. A radiation sensor panel for converting radiation into image signals;
A housing containing the radiation sensor panel;
A support portion for supporting the radiation sensor panel with respect to the housing;
A buffer member disposed between the radiation sensor panel and the housing on the opposite side of the support portion of the radiation sensor panel;
A radiographic apparatus comprising:
The radiographic apparatus according to claim 1, wherein the buffer member is provided with a gap in an orthographic projection area obtained by orthographically projecting the support area supported by the support section onto the buffer member. A radiation sensor panel for converting radiation into image signals;
A housing containing the radiation sensor panel;
A support portion for supporting the radiation sensor panel with respect to the housing;
A buffer member disposed between the radiation sensor panel and the housing on the opposite side of the support portion of the radiation sensor panel;
A radiographic apparatus comprising:
The radiation imaging apparatus characterized in that the buffer member has a smaller elastic modulus of an orthographic projection region obtained by orthoprojecting the support region supported by the support portion onto the cushioning member than other regions different from the orthographic projection region. . The radiation imaging apparatus according to any one of claims 1 to 15,
Signal processing means for processing signals from the radiation imaging apparatus;
A radiation imaging system comprising:

Images