JPH09145343A - Radiation inspection apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus by which a sample can be inspected without coming into contact with an opening part, in which only a conveyance means can be washed by water and which can deal with an abnormality immediately by a method wherein a signal which is generated from an X-ray tube and which is detected after being transmitted through the sample is changed into an image and the image is processed so as to capture the feature point of the sample. SOLUTION: A sample which is placed on a belt conveyor is conveyed into a radiation inspection apparatus body, and an X-ray transmitted image is obtained by an X-ray tube 2 and an X-ray sensor 5. The detection signal of the X-ray sensor 5 is input to a central control device 40 via a DAS(data acquisition system) 5 and an interface 43 so as to be stored in an image memory 44. Image data which is stored once in the memory 44 feature-detected by a feature-detection and processing means 45, the feature part of a structure peculiar to the sample is excluded, a foreign body or a flaw is judged and processed, and its judged result is output via an I/O part 46. The sample which is judged to be defective is excluded from a line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiation inspection apparatus, and more particularly to a radiation inspection apparatus for nondestructively inspecting articles such as materials and products.

[0002]

2. Description of the Related Art FIG. 7 is a schematic configuration diagram of a conventional radiation inspection apparatus for nondestructively inspecting the inside of an article using radiation.

As shown in FIG. 7, a conventional radiation inspection apparatus includes an X-ray tube 1 for generating X-rays (radiation) above a belt conveyor 101 on which a subject (not shown) is placed and conveyed.
X-ray sensor 1 for detecting X-rays at a position facing the X-ray tube 102 across the belt conveyor 101.
03 is arranged. An X-ray collimator 104 that shields X-rays other than the X-rays to be used is provided near the lower portion of the X-ray tube 102.
Is arranged.

The belt conveyor 101 and the X-ray tube 10
2, X-ray sensor 103, X-ray collimator 104, etc.
It is covered with an X-ray shielding box 105 that prevents the radiation of the rays to the outside. The left and right side surfaces of the X-ray shielding box 105 have openings 107, 1 through which the subject on the belt conveyor 101 enters and exits.
No. 08 is formed, and lead-containing rubbers 106a and 106b for preventing scattered radiation are arranged in the openings 107 and 108, respectively.

Then, the subject placed on the belt conveyor 101 is conveyed into the radiation inspection apparatus through the opening 107 at the entrance, the radiation generated from the X-ray tube 102 passes through the subject, and the X-ray sensor Detected by 103. The subject whose inspection has been completed is transported to the outside of the radiation inspection apparatus through the opening 108 of the outlet.

[0006]

However, the conventional radiation inspection apparatus has the following inconveniences.

Depending on the subject, the lead-containing rubber 10
There is a case where the 6a and 106b do not like to be touched, and in such a case, it is necessary to pass the subject with the openings 107 and 108 left open. In this case, as a matter of course, it is necessary to prevent the radiation from leaking to the outside from the openings 107 and 108. However, the conventional radiation inspection apparatus does not have such a function.

There is a case where the dirty belt conveyor 101 is washed with water, and in this case, the workability of water washing is not good if the belt conveyor 101 is still incorporated in the radiation inspection apparatus.

When the radiation inspection apparatus is used in-line in an assembly line such as product manufacturing, it is necessary to detect an abnormality in the system of the radiation inspection apparatus or the assembly line and take a posture to immediately deal with the abnormality. There is.

For example, ham for meat may be packaged with a semitransparent film and both ends thereof may be sealed with wires. When the ham having such a configuration is inspected for contamination of a metallic foreign substance by using a radiation inspection apparatus, it is impossible to distinguish the metallic foreign substance from the wire for packaging.

For example, in the case of an earthquake or the like, it does not have a function of stopping the operation of the radiation inspection apparatus.

Therefore, an object of the present invention is to provide a radiation inspection apparatus which solves the above-mentioned problems.

[0013]

In order to solve the above-mentioned problems, the invention according to claim 1 detects a radiation generating means for generating radiation and a radiation transmission signal generated by the radiation generating means and transmitted through an object. And a detection radiation processing means for processing the radiation detection signal so as to capture an image of the radiation detection signal detected by the radiation detection means and to capture a characteristic point of the subject.

According to the first aspect of the invention, the detection radiation processing means includes, for example, a wire (not a foreign substance) that clips both ends of the edible ham and another metal (a foreign substance). By comparing the dimension between the wires and the dimension between the two foreign materials, it is determined whether the wire is normal metal (metal for clip) or foreign material.

According to a second aspect of the present invention, the radiation inspection apparatus includes a transportation means for transporting a subject and a radiation shielding means for preventing radiation of radiation to the outside. It is composed of a box body that covers the radiation generating means and the radiation detecting means, and the box body has an opening through which the subject transported by the transport means comes in and out, and the positional relationship between the transport means and the opening is It is characterized in that it is configured so as to prevent the radiation of scattered radiation generated during the irradiation of the above radiation.

According to the second aspect of the present invention, for example, comparing the installation height of the opening and the height at which the radiation is applied to the subject, the scattered radiation generated by the irradiation of the subject is transmitted from the opening to the outside. The height relationship is designed to prevent leakage (see FIG. 1).

According to a third aspect of the present invention, the radiation inspection apparatus includes a first portion having the radiation generating means and the radiation detecting means, and a second portion for carrying the subject. The second portion is configured to be detachable from the first portion.

According to the invention of claim 3, for example, the second
The part (belt conveyor) may be dirty and need to be washed with water. In such a case, the second part is pulled out from the first part and washed with water.

Further, the invention according to claim 4 is characterized in that when there is an abnormality in the feature captured by the detected radiation processing means, the abnormality processing is performed.

According to the fourth aspect of the invention, as the abnormality processing, for example, the conveyance of the subject to the next step is stopped.

Further, the invention according to claim 5 is characterized in that the radiation detecting means comprises a plurality of detecting elements for image detection, and further comprises detecting element abnormality detecting means for detecting abnormality of the detecting elements. Characterize.

According to the fifth aspect of the invention, if there is an abnormality in the constituent element of the radiation detecting means, accurate abnormality detection cannot be performed. Therefore, when there is an abnormality in a constituent element, it is necessary to immediately detect the abnormality and take countermeasures against it. The present invention is effective in such cases.

Further, the invention according to claim 6 is characterized by comprising an inspection ability confirmation means for confirming whether or not the radiation inspection apparatus has a predetermined inspection ability.

According to the sixth aspect of the present invention, after confirming that the radiation inspection apparatus surely has the inspection ability, the radiation inspection apparatus can be used.

The invention according to claim 7 is characterized in that it is provided with an earthquake measuring means for detecting the shaking of the earthquake.

According to the invention described in claim 7, since the radiation inspection apparatus is provided with the radiation generation means, there is a possibility that the radiation inspection apparatus will be destroyed in the case of a strong earthquake and radiation leakage will occur. In such a case, the shaking of the earthquake can be detected, and appropriate countermeasures can be taken according to the shaking.

Further, in the invention according to claim 8, the radiation inspection apparatus comprises at least one of a metal detecting means for detecting a metal in the subject and a weight measuring means for measuring the weight of the subject. It is characterized by

According to the eighth aspect of the present invention, if at least one of the metal detecting means and the weight measuring means is provided, it functions as a combined inspection device, so that the inspection accuracy of the subject is improved.

According to a ninth aspect of the invention, the abnormality processing is means for warning the content of the abnormality.

According to the invention described in claim 9, since the warning means warns of the content of the abnormality, the coping means can be immediately taken.

The invention according to claim 10 is characterized in that the abnormality processing comprises means for stopping the line in which the radiation inspection apparatus is incorporated.

According to the tenth aspect of the present invention, the line in which the radiation inspection apparatus is incorporated is stopped for safety during abnormal processing.

[0033]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings.

(1) First Embodiment Example FIGS. 1A and 1B show a radiation inspection apparatus D of the present embodiment example.
2 is a schematic configuration diagram of a pseudo object injection device that constitutes the radiation inspection apparatus D, and FIG. 3 is a block diagram of a control system of the radiation inspection apparatus D.

(1-1) Structure of the mechanical system of this embodiment As shown in FIGS. 1A and 1B, the mechanical system of the radiation inspection apparatus D supports the X-ray tube 2 and the like, and A portion of the support base 1 and the X-ray shield box 6 that shield the leakage of X-rays to the outside, and a conveyor base 1 that conveys the subject into the X-ray shield box 6.
It is composed of 1 part and 1.

In the portion of the support base 1 and the X-ray shield box 6, an X-ray tube 2 is arranged above the support base 1 having four legs, and an X-ray tube is located below the X-ray tube 2. A filter 3 and a pseudo object injector 4 described below are arranged. Furthermore,
The X-ray sensor 5 is arranged below.

The X-ray tube 2, the X-ray filter 3, the pseudo object feeder 4, the X-ray sensor 5 and the like configured as described above are covered with an X-ray shielding box 6. That is, the X-ray shielding box 6 has a rectangular parallelepiped shape, and a door 7 that shields X-rays is attached to the front surface in the longitudinal direction thereof by a hinge so that the door 7 can be opened and closed. There is. The X-ray shielding box 6 has openings 8a and 8b formed on both side surfaces in the lateral direction, which serve as entrances and exits for passage of the subject 10.

Further, casters 12 are attached to the tips of the four legs of the conveyor table 11 so that they can be pulled out in the front direction. Conveyor stand 11
A first belt conveyor 12 and a second belt conveyor 14 are arranged on the upper surface of the. The first belt conveyor 12 is stretched by a first roller 13a and a second roller 13b so as to rise toward the inside of the radiation inspection apparatus, and the first roller 13a is arranged at a position outside the opening 8a,
The second roller 13b is arranged near the lower part of the pseudo object feeder 4. With this configuration, the subject 10 is transported in the ascending direction.

The second belt conveyor 14 is stretched by the first to fourth rollers 15a to 15d, and the first roller 15a is stretched.
Is arranged at a position protruding from the opening 8b to the outside.
The roller 15b is on the lower right side of the filter 3 and the second
It is arranged at a position slightly lower than the height of the roller 13b,
The roller 15c is slightly lower than the second roller 15b and has a second
The fourth roller 15d is arranged below the roller 13b, and the fourth roller 15d is arranged below the third roller 15c and at substantially the same height as the first roller 15a.

That is, as shown in FIG. 1A, the first belt conveyor 12 and the second belt conveyor 14 are curved upward as a whole, and scattered X-rays generated from the subject 10 (in the figure) , Indicated by alternate long and short dash lines) are openings 8a, 8
The positional relationship is such that it does not directly go out from b.
According to this structure, the conventional shielding lead rubber is unnecessary, and for example, a subject who does not like to come into contact with the lead rubber can be an inspection target of the radiation inspection apparatus.

Further, reference numeral H is a height detecting means of the subject 10, which detects the height of the subject 10 at a position where data is collected, and performs an abnormal process when the height is higher than a predetermined value. The determination is made by the control device 31 (see FIG. 3). The height of the subject 10 can be limited mechanically at the opening 8a, but when the belt conveyor is divided into a climbing section (first belt conveyor 12) and a horizontal section (second belt conveyor 14). In some cases, the subjects 10 may overlap with each other at the time of transfer of the subject 10, so that the restriction or height detection at the opening (entrance) 8a is not sufficient. When the height detecting means H detects an abnormality, the emission of X-rays is prohibited, the operation of the system is limited, and an alarm is issued.

Further, when the conveyor table 11 is once pulled out from the radiation inspection apparatus main body and is inserted into the apparatus main body again, the position detecting means 16 for detecting that the conveyor table 11 is stored at the specified position is detected. When the detecting means 16 detects an abnormality, the emission of X-rays is prohibited, the operation of the system is restricted,
Raise an alarm.

FIG. 2 is a block diagram of the pseudo object feeder 4. As shown in FIG. 2, one end of a bendable cord 23 is fixed to the drive means 22 including a solenoid, and the cord 23
A rectangular parallelepiped dummy subject 21 is fixed to the other end of the. The string 23 is hung on a roller 22b at the tip of the output shaft 22a of the driving means 22. The dummy object 21 has defects inside, and the dummy object 2
By performing the same data collection / judgment on 1 as the normal inspection, it is judged whether or not the inspection capability of the radiation inspection apparatus D is as specified.

That is, when the output shaft 22a moves to the right in the figure, the dummy object 21 moves up, and conversely, when it moves to the left, it goes down and drops onto the second belt conveyor 14.
This operation is performed at a speed higher than the speed of the belt conveyor 14. It is also possible to confirm that the subject 10 is not on the belt conveyor during the normal inspection and then perform this inspection.

Next, the X-ray filter 3 will be described.

In the X-ray filter 3, filters having different thicknesses are arranged so that they can be set in the radiation path, a plurality of X-ray transmission data are obtained, and the X-ray energy is determined from the intensity change with respect to the thickness. The relationship between the X-ray intensity change and the X-ray energy can be expressed by the following equation.

I = I _o exp (−μ ₀ · ρ · t) where μ _o : X-ray mass absorption coefficient of the object ρ: Density of the substance t: Thickness of the object In the case of a substance having the above-mentioned content, μ ₀ changes with the energy of X-rays, so that the energy I of X-rays can be calculated.

The X-ray filter 3 is preferably made of a material having X-ray absorption characteristics equivalent to those of the object to be inspected, but another material may be used. Generally, a metal plate is used when it is desired to make the X-ray filter small.

(1-2) Configuration of Control System of the Present Embodiment FIG. 3 is a block diagram of the control system of the radiation inspection apparatus D.
As shown in FIG. 3, the X-ray tube 2, the X-ray filter 3, and the height detection means H are connected to the control device 31, and further, the seismograph 32, the object detection means 33, and the movement of the second belt conveyor 14 are moved. An encoder 34 for detecting the quantity is connected to the control device 31.

On the other hand, the central control unit 40 has IOs 42 and 46, an interface 43, an image memory 44, and a feature detection processing means 45 via a system bus connected to the CPU 41.
And are connected. Further, the central controller 40 includes a defect determination unit 47, a feature number / distance determination unit 48, and an inter-image calculation unit 4
9, an abnormality processing unit 50, a radiation intensity determination unit 51, a radiation energy band determination unit 52, and a detection element abnormality detection unit (straight line image detection unit) 53.

(1-3) Description of Operation of the Present Embodiment Example of Operation Overview of Radiation Inspection Apparatus As shown in FIGS. 1 and 3, the first belt conveyor 12 is used.
The subject 10 placed on the first belt conveyor 12
Then, it is conveyed into the main body of the radiation inspection apparatus via the second belt conveyor 14, and an X-ray transmission image is obtained by the X-ray tube 2 and the X-ray sensor (line sensor) 5.

Detection signal of the X-ray sensor 5 (image data)
Are input to the central control unit 40 via the DAS (DATA ACQISITION SYSTEM) 35 and the interface 43 and stored in the image memory 44. The image data once stored in the image memory 44 is feature-detected by the feature detection processing unit (detection radiation processing unit) 45, the characteristic portion of the unique structure of the subject 10 is excluded, and the foreign matter or defect determination processing is performed. Then, the determination result is output via IO46.

Then, the radiation inspection apparatus D is usually incorporated in the manufacturing line, and the object 10 judged to be defective in the apparatus in the next step of the radiation inspection apparatus D is removed from the line. Here, examples of the unique structure of the subject 10 include clips for sealing ham for meat, pull-top fittings for containers and cans, antioxidants, bones for cans of fish, and the like. Judgment is performed based on these characteristic points of the subject, such as concentration, area, geometric shape, and topological characteristics.

Specific Determination Operation of Radiation Inspection Apparatus By the radiation inspection apparatus D, the edible ham 6 shown in FIG.
The operation of excluding the metal clips 62a and 62b of No. 1 from foreign matter will be described.

An X-ray transmission image of the hum 61 is obtained by the radiation inspection apparatus D, and the feature detection processing unit 45 preprocesses it based on the image data and binarizes the barycenter 63a of the feature points.
By determining 63b and measuring the distance 65 between the centers of gravity, it is determined whether or not the feature points are clips at both ends. That is, in the case of a clip, since the distance 65 is known in advance, it can be easily determined whether or not the distance 65 is due to the clip. Here, reference numeral 64 is a CRT. If there is another feature point (if there is a feature point based on a foreign substance), the distance between the feature point of the clip and the feature point of the foreign substance is different, so it is not excluded (that is, determined to be a foreign substance). To).

Further, for example, as shown in FIG.
The ham 61 may be conveyed in the radiation inspection apparatus D in the vertical direction. In this case, the X-ray sensor (line sensor) 5
Since the distance of the image in the spreading direction (the direction perpendicular to the traveling direction of the subject 10) changes depending on the X-ray geometric system, the distance may be designated in consideration of the image enlargement ratio. The feature point number / distance determining unit 48 determines these feature points.

The number of feature points is counted, and if the number of feature points exceeds two, they are not excluded. That is, the third and subsequent feature points are determined to be foreign matter. In other words, if both the distance between the center of gravity of the feature points and the number of feature points are set as the determination targets, it is possible to make a correct determination as to whether the object is a foreign object or a clip (exclusion target).

Further, when the area in the image where the feature points to be excluded exist is known in advance (for example, the position of the center of gravity in FIG. 4A is known in advance), the target is increased in order to improve the accuracy of judgment. It is effective to specify the object judgment area. In the clip of the hum 61, the region of the hum 61 may be cut out by binarization processing, the number of pixels (or distance) from the outer edge to the inside may be designated, and the region may be designated.

Further, as shown in FIG. 5, when the edge 66a of the container 66 exists at the outer edge of the image, the edge 6a is formed.
The feature level (content) 66b in the container 66 can be excluded by matching the binarization level with the image density of 6a. Further, since the thickness of the container is known in advance on the image, it is possible to perform a process of scraping off the thickness of the container from the outer edge portion of the determination target image. This processing is the feature detection processing means 4
Step 5

Further, images of only the peculiar structure (container or the like) of the subject 10 are collected in advance and stored in the image memory 44. A coefficient may be applied to the stored image to perform weighting, and then calculation is performed with respect to the actual image to be inspected to exclude the influence of the image of the unique structure. This calculation is performed by the inter-image calculation unit 49. The peculiar structure in this case includes pull-top fittings for containers and cans, and antioxidants.

Alarm operation of radiation inspection apparatus Scattered X-rays are often generated when the scatterer (inspection object 10) is in the X-ray fan beam. Stopping of the belt conveyor 14 during data collection is detected by monitoring the output of the encoder 34 arranged near the belt conveyor 14 or the state of the belt conveyor drive unit of the control device 5. When the stop of the belt conveyor 14 is detected, it is in an abnormal state, so the emission of X-rays is prohibited, the operation of the system is limited, and an alarm is issued. As a result, the subject 10 stays within the irradiation range of the X-ray fan beam, and the increase of scattered X-rays can be prevented.

When the speed of the belt conveyor changes, the X-ray transmission data also changes. By monitoring the output of the encoder 34, the control device 5 detects whether the transport speed is within a specified value. If there is an abnormality, the abnormality is processed, the system is stopped, and an alarm is issued.

Further, the defect determination section 47 capable of detecting foreign matter detects whether or not there is an adhered substance on the conveyor belt from the image data obtained when the subject 10 is not present. Since this determination does not include the influence of the subject 10 in the image, it is often possible to make the determination by shading correction and simple binarization.

Whether or not the subject 10 is present at a predetermined position during the inspection can be detected by the object detection means (photoswitch) 16 provided near the data collection position. If there is an abnormality, the X-ray is stopped, the entire system is stopped, and an alarm is issued.

Further, the detection element forming the X-ray sensor 5 may fail. In this case, an abnormality of the detection element is detected by the linear image detection means 53 that detects linear data that coincides with the operation direction of data collection (the traveling direction of the conveyor) from the image, and the number of the abnormal elements is calculated by the CPU 41. To enter. The CPU 41 stores in advance a reference for executing the abnormality processing (for example, the ratio of defective elements to the total number of detection elements, the number of defective elements), and when the reference value is exceeded, the abnormality processing is performed.

Further, by monitoring the output of the X-ray sensor 5, it is possible to detect whether or not the X-ray output is normal. That is, the output data of the X-ray sensor 5 is collected when the subject 10 is not present, and the radiation intensity determination unit 51 determines the level by using the collected image data and determines whether or not it is normal.

Further, at the immovable position of the radiation inspection apparatus D, an earthquake detection means (seismometer) 32 for detecting the shaking caused by the earthquake by the radiation inspection apparatus D is provided. Device D and the radiation inspection device D
Performs abnormal processing such as stopping the line in which is installed.

When various kinds of abnormalities as described above occur, the type of the abnormalities, the timing of occurrence, the number of passing objects 10 and the like are recorded and used as management data (for example, actual operation status data of the radiation inspection apparatus). To use.

As the X-ray sensor, there are an area sensor and a line sensor, but when a fluoroscopic image of the moving subject 10 is to be obtained, the line sensor is preferable because it has flexibility in data collection conditions. is there.

(2) Second Embodiment Example Conventionally, as a food inspection device, a metal detection device, a weight inspection device, a defective product removal device, etc. have been used. The combined device, which is a combination of these devices and the radiation inspection device, has the effect of further enhancing the inspection performance as a multi-function device.

FIG. 6 shows a metal inspection device (gold inspection) 71 and a weight inspection device 7 in addition to the radiation inspection device D shown in the first embodiment.
An example of a composite inspection apparatus C in which the two are combined is shown. In addition,
The defective product detected by the composite inspection device C is removed by the defective product removing device in the next step (not shown).

The abnormality processing of the composite inspection apparatus C includes the following.

Display of Abnormal State The contents of the abnormality are displayed as a message on the CRT, the contents are notified by sound, the contents of the abnormality are displayed by the printer, the information of the light is displayed, and the abnormality information is displayed on the relevant place via the communication medium. Notice.

Stopping the apparatus The radiation of radiation is stopped, the operation of the mechanical section is stopped, and the determination of the image is stopped. Further, all the passing inspection objects 10 are removed as undecidable, and in the case of in-line, the system is stopped, the power supply is cut off, and the apparatus in the upstream process is stopped.

These various kinds of abnormality processing are combined according to the specifications and incorporated in the apparatus. Execution of the above processing,
This is performed by issuing a command signal from the control device 31 or the central control device 40.

[0076]

As described above, according to the invention described in each claim, the subject can be inspected by the radiation inspection apparatus without contacting the opening, and the transport means (belt conveyor) is washed with water. In this case, it can be washed with water without affecting other parts, and when the radiation inspection device is used in-line, it detects an abnormality in the system of the radiation inspection device or the assembly line and immediately deals with the abnormality. For example, it is possible to distinguish between a wire for packaging meat ham and a foreign substance, and to stop the operation of the radiation inspection apparatus in the event of an earthquake or the like.

[Brief description of the drawings]

FIG. 1 is a diagram showing a first embodiment example of the present invention,
(A) is a front view, (b) is a side view.

FIG. 2 is a schematic configuration diagram of a pseudo object injection device according to the first embodiment.

FIG. 3 is a block diagram of a control system of the first embodiment example.

FIG. 4 is an explanatory diagram in the case of inspecting a ham for meat for foreign matter according to the first embodiment.

FIG. 5 is an explanatory diagram in the case of inspecting a can with contents according to the first embodiment example.

FIG. 6 is a front view of the second embodiment example.

FIG. 7 is a schematic configuration diagram of a conventional radiation inspection apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support stand 2 X-ray tube 3 X-ray filter 4 Pseudo object injection device 5 X-ray sensor 6 X-ray shielding box 7 Doors 8a, 8b Opening part 10 Subject 11 Conveyor stand 12 First belt conveyor 14 Second belt conveyor 45 Features Point detection processing means (detection radiation processing means)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akihiko Nishiide 1st Toshiba Town Fuchu, Tokyo Fuchu factory Co., Ltd. (72) Inventor Masaya Yoshida 1st Toshiba Town Fuchu city Toshiba Fuchu factory, Ltd. (72) Inventor Teruo Yamamoto 1st Toshiba Town, Fuchu City, Tokyo Inside the Fuchu Factory, Toshiba Corporation

Claims (10)

[Claims] 1. A radiation generation unit that generates radiation, a radiation detection unit that detects a radiation transmission signal that is generated from the radiation generation unit and transmitted through an object, and an image of the radiation detection signal detected by the radiation detection unit. A radiation inspection apparatus, comprising: detected radiation processing means for processing the radiation detection signal so as to capture the characteristic points of the subject. 2. The radiation inspection apparatus comprises: a transporting means for transporting a subject; and a radiation shielding means for preventing radiation to the outside, wherein the radiation shielding means includes the radiation generating means and the radiation detecting means. The box body is provided with an opening through which the subject transported by the transport means moves in and out, and the positional relationship between the transport means and the opening is determined by scattered radiation generated when the subject is irradiated with radiation. The radiation inspection apparatus according to claim 1, wherein the radiation inspection apparatus is configured to prevent radiation of the radiation to the outside. 3. The radiation inspection apparatus comprises a first portion having the radiation generation means and the radiation detection means, and a second portion for carrying a subject, and the second portion. The radiation inspection apparatus according to any one of claims 1 to 3, wherein is attached to and detached from the first portion. 4. The radiation inspection apparatus according to claim 1, wherein when there is an abnormality in the feature captured by the detected radiation processing means, the abnormality processing is performed. 5. The radiation detecting apparatus according to claim 1, wherein the radiation detecting means includes a plurality of detecting elements for image detection, and includes detecting element abnormality detecting means for detecting abnormality of the detecting elements. Inspection device. 6. The radiation inspection apparatus according to claim 1, further comprising inspection ability confirmation means for confirming whether or not the radiation inspection apparatus has a predetermined inspection ability. 7. The radiation inspection apparatus according to claim 1, further comprising an earthquake measuring unit that detects shaking of the earthquake. 8. The radiation inspection apparatus comprises at least one of a metal detection means for detecting a metal in a subject and a weight measurement means for measuring the weight of the subject. The radiation inspection apparatus described. 9. The radiation inspection apparatus according to claim 1, wherein the abnormality processing is means for warning the content of the abnormality. 10. The radiation inspection apparatus according to claim 1, wherein the abnormality processing includes means for stopping a line in which the radiation inspection apparatus is incorporated.