JP2017219384A - X-ray inspection system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an X-ray inspection system that enables the operation of X-ray irradiation by a designated irradiator and makes it easy to secure safety and manage the history of irradiation.SOLUTION: This X-ray inspection system comprises a hand-held X-ray generator (10), a portable X-ray image receiving device (20) for detecting an X-ray having transmitted a test object, and a display device (30) for displaying an inspection image of the test object that corresponds to the X-ray intensity detected by the X-ray image receiving device (20). The hand-held X-ray generator (10) comprises a biological information capture unit (122) for capturing the biological information of an individual, and an irradiation switch (123) for enabling the operation of X-ray irradiation on the basis of personal authentication using the biological information.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an X-ray inspection system using a hand-held X-ray generator.

  At airports, X-ray inspection equipment is used to prevent weapons, explosives, flammable substances, dangerous goods, etc. from being brought into the aircraft. The X-ray inspection apparatus irradiates the test object on the conveyor with X-rays, captures the X-ray attenuated by the test object, images it in real time, and displays it on the monitor screen. Baggage inspection using an X-ray inspection apparatus is desired not only at airports but also at stations, sports facilities, event venues and the like for security reasons. An X-ray inspection apparatus installed at an airport or the like is large and difficult to carry. Therefore, the X-ray inspection apparatus is fixedly installed at an entrance gate of an airport security gate, a sports facility, an event venue, or the like.

  By the way, in recent years, a practical portable X-ray source using a carbon nanostructure cold cathode electron source has been proposed (see Non-Patent Document 1). Since a portable X-ray generator incorporating a portable X-ray source is compact and portable, a portable X-ray inspection system can be realized. If it is a portable X-ray inspection system, it is possible to carry around a place other than the security gate and the entrance gate and carry out baggage inspection. In addition, it can be applied to uses such as X-ray inspection of the damaged state of an accident vehicle for purposes other than security purposes.

"Development of small and light pulse X-ray source for nondestructive inspection", [online], June 3, 2014, National Institute of Advanced Industrial Science and Technology, [Search April 8, 2016], Internet <URL: http://www.aist.go.jp/aist_j/press_release/pr2014/pr20140603/pr20140603.html>

  By the way, in the case of a portable X-ray inspection system, the X-ray generator is used at an arbitrary place by freely carrying it to a place other than the security gate and the entrance gate.

  While portable X-ray generators are required to have very little impact on the surroundings even if X-ray irradiation is performed without shielding, safety is ensured by generating X-rays and irradiation history is managed. Should be done in some way.

  The present invention has been made in view of such problems, and an object of the present invention is to enable an X-ray irradiation operation by an appointed irradiator, and to facilitate safety ensuring and management of irradiation history. To provide an inspection system.

  The X-ray inspection system of the present invention includes a hand-held X-ray generator, a portable X-ray image receiving device that detects X-rays transmitted through the object, and an inspection of the object detected by the X-ray image receiving device. An X-ray inspection system comprising: a display device for displaying an image, wherein the handheld X-ray generation device enables a personal authentication unit for performing personal authentication and an X-ray irradiation operation based on the personal authentication And an irradiation switch.

  According to the present invention, an X-ray inspection at an arbitrary place using a hand-held X-ray generator is realized, and an X-ray irradiation operation can be performed by a designated irradiator, ensuring safety and easy management of an irradiation history. An X-ray inspection system can be provided.

It is a system configuration figure of the X-ray inspection system concerning this embodiment. It is an external view of the handheld X-ray generator in this Embodiment. FIG. 3 is a partial perspective view showing the hand-held X-ray generator shown in FIG. It is a functional block diagram of the hand-held X-ray generator in this Embodiment. It is a data block diagram of the registration biometric information storage part in this Embodiment. It is a figure which shows the expansion | deployment state of the portable X-ray image receiver in this Embodiment. It is a functional block diagram of a portable X-ray image receiving apparatus in the present embodiment. It is a figure which shows an example which displayed the test | inspection image with the portable display apparatus in this Embodiment. It is a schematic external view which shows the modification of a portable X-ray image receiver. It is a schematic external view which shows the other modification of a portable X-ray image receiver. It is a block diagram of the management center apparatus provided with the biometrics authentication function.

  The X-ray inspection system according to the present embodiment will be described below with reference to the drawings. In the following description, a case will be described in which baggage inspection and other inspections (including physical inspection) are performed at an arbitrary place using an X-ray inspection system in an airport, a station, a sports facility, an event venue, or the like. However, the present invention can be similarly applied to other than baggage inspection such as X-ray inspection of an accident vehicle.

  FIG. 1 is a system configuration diagram of an X-ray inspection system according to the present embodiment. The X-ray inspection system of the present embodiment includes an X-ray source and a hand-held X-ray generator 10 with a personal authentication function, and a subject when an object OB is irradiated with X-rays from the hand-held X-ray generator 10. A portable X-ray image receiving apparatus 20 that detects the X-ray intensity transmitted through the specimen OB, and a display device 30 that displays an examination image generated based on the X-ray intensity detected by the portable X-ray image receiving apparatus 20. And.

  In the case of baggage inspection, a plane sensor of the portable X-ray image receiving device 20 is disposed on the back of the baggage, and X-ray irradiation is performed by the handheld X-ray generator 10 from the front side of the subject OB. FIG. 1 schematically shows a network configuration in which X-ray intensity data and inspection image data are transmitted from the portable X-ray image receiving device 20 and the display device 30 to the monitoring server 40, respectively. Depending on the system configuration, only the display device 30 can transmit inspection image data and other information to the monitoring server 40 in a predetermined form.

  The monitoring server 40 displays a list of inspection image data sent from the display device 30 at each place where the hand-held inspection is performed on a monitor in the monitoring room. Alternatively, the monitoring server 40 generates an inspection image from each X-ray intensity data directly transmitted from the X-ray image receiving apparatus 20 at each place where the hand-held inspection is performed, and displays the inspection image on a list monitor in the monitoring room. As will be described later, the handheld X-ray generator 10 may be connected to the management center apparatus via a communication medium (LAN and / or WAN). The management center apparatus includes a database that manages registration information regarding the handheld X-ray generation apparatus 10.

  The configuration of the handheld X-ray generator 10 will be described with reference to FIGS. 2 and 3. 2 is an external perspective view of the hand-held X-ray generator 10, and FIG. 3 is an enlarged view of the X-ray tube storage unit. FIG. 3 is a partially broken view so that the internal structure of the X-ray tube storage portion can be seen. The hand-held X-ray generator 10 includes an X-ray tube storage portion 11 having an outer shape that is cylindrical, and a grip portion 12 that extends from the X-ray tube storage portion 11 in the coaxial direction and is gripped by an irradiator. As shown in FIG. 3, the X-ray tube storage portion 11 has a hollow portion for storing the X-ray tube 13 therein, and the outer peripheral surface of the X-ray tube 13 stored in the X-ray tube storage portion 11 is formed. A covering shield material 14 is formed. As the X-ray tube 13, a high-efficiency carbon nanostructure X-ray generation tube that does not require preheating and is easy to reduce in size and weight can be used as an X-ray source. The X-ray tube 13 is supported and fixed by a support member 15 formed integrally with the shield material 14. The shield material 14 and the support member 15 are made of a material having high radiation attenuation efficiency such as lead. The outer surface portion 16 of the X-ray tube storage portion 11 is formed of a material that can be easily processed, such as a resin material. A collimator 17 is formed in the X-ray tube storage portion 11 by partially cutting off the shield material 14. The collimator 17 is cut out into a shape in which the opening angle of the X-ray irradiation opening is, for example, 25 degrees. A cover 18 is provided at the X-ray irradiation port through which X-rays are emitted through the collimator 17. When the X-ray tube 13 has a cylindrical outer shape, the outer shape of the X-ray tube storage portion 11 is made cylindrical as shown in FIG. Therefore, the weight of the hand-held X-ray generator 10 can be reduced as a whole. However, the shape of the X-ray tube storage portion 11 is not limited to a cylindrical shape. For example, in the case of application to damage inspection in an automobile accident, there may be a case where the thin and elongated shape is more advantageous for insertion into a narrow part of an accident vehicle. The grip portion 12 is provided so as to extend coaxially at an end portion on the opposite side to the end portion on the collimator 17 (X-ray irradiation port) side in the X-ray tube storage portion 11. The grip portion 12 is designed to have a diameter that allows a finger (for example, a thumb) used for button operation to be free when the irradiator grips it. A biological information capturing unit 122 and an irradiation switch 123 are provided in the vicinity of a range where any finger of the irradiator who holds the grip unit 12 can reach. In this example, the biometric information capturing unit 122 is configured with a fingerprint sensor for fingerprint authentication. The fingerprint sensor detects a change in the charge of the electrode when the finger is placed on the reading surface, and converts the amount of different charges depending on the unevenness of the fingerprint into an image. The irradiation switch 123 is configured so that an X-ray irradiation operation can be performed after personal authentication based on fingerprint data acquired from the biological information acquisition unit 122. In addition, two types of lamps 124 and 125 that indicate the state of charge are provided. The lamp 124 emits green light indicating completion of charging, and the lamp 125 emits red light indicating that charging is in progress. A charging jack 126 is provided at the end of the grip portion 12. A battery 127 is built in the grip portion 12, and the battery 127 can be charged by connecting the charging jack 126 to a commercial power source.

  FIG. 4 is a functional block diagram of the hand-held X-ray generator 10. The hand-held X-ray generator 10 includes a control unit 110 and peripheral devices (13, 122, 123, etc.). The control unit 110 includes a control unit 111 that controls the operation of the entire apparatus including drive control of the X-ray tube 13, a biometric authentication unit 112 that performs personal authentication based on biometric information, and an irradiation switch 123 that is based on personal authentication. And an irradiation permission unit 113 that enables X-ray irradiation. The biometric authentication unit 112 compares the biometric information (fingerprint data) acquired from the biometric information acquisition unit 122 with the registered biometric information stored in the registered biometric information storage unit 114 to perform personal authentication. In this example, the personal authentication is performed by comparing the fingerprint data captured from the biometric information capturing unit 122 with the fingerprint data stored in the registered biometric information storage unit 114. The registered biometric information may not be stored in the handheld X-ray generator 10. For example, registered biometric information stored in an external device such as a management center device may be acquired online.

  The registered biometric information storage unit 114 registers biometric information (for example, fingerprint data) of an individual who is appointed to use the handheld X-ray generator 10. In this example, as shown in FIG. 5, registered biometric information of an administrator who has been appointed in advance as an X-ray handling manager (safety manager) and X-rays that have been appointed as an X-ray irradiator (registered irradiator) The registered biometric information of the irradiator is stored. A personal identification number (ID) is assigned to the X-ray handling manager (safety manager) and the X-ray irradiator (registered irradiator), and the personal identification number (ID) and registered biometric information are associated with each other. Yes. Here, the registered biometric information is a fingerprint image, but may be feature data extracted from image data depending on the authentication method. A plurality of X-ray handling managers and X-ray irradiators may be registered for one handheld X-ray generator 10. A method for registering biometric information (for example, fingerprint data) for personal authentication in the registered biometric information storage unit 114 is not limited. In this example, the control unit 111 activates the registration mode by detecting a long press of the irradiation switch 123.

  The biometric authentication unit 112 compares the registered biometric information of the administrator registered in advance as an X-ray handling manager with the biometric information acquired from the biometric information acquisition unit 122, and performs personal authentication of the administrator. The personal authentication of the X-ray irradiator is performed by comparing the registered biometric information of the X-ray irradiator registered in advance as the X-ray irradiator with the biometric information acquired from the biometric information acquisition unit 122. At least when the handheld X-ray generator 10 is brought into a new X-ray examination site for the first time, the first personal authentication for personal authentication using the administrator's biometric information and the biometric information of the X-ray irradiator It may be configured to request two types of personal authentication of the second personal authentication in which personal authentication is performed using. An X-ray irradiation operation by the irradiation switch 123 is made possible after the first and second personal authentication. The first personal authentication, which is the personal authentication of the administrator, is requested at the first operation when at least the hand-held X-ray generator 10 is brought into a new X-ray inspection site (sport facility, event venue, etc.). It may be requested every time X-ray irradiation is performed, but may be requested when the X-ray inspection site (sports facility, event venue, etc.) changes or when the date of use changes.

  When the finger is pressed against the biometric information capturing unit 122, the control unit 111 recognizes the personal authentication request and activates the biometric authentication unit 112 and the irradiation permission unit 113. If the biometric authentication unit 112 succeeds in the first and second personal authentication, the irradiation permission unit 113 enables the X-ray irradiation operation by the irradiation switch 123. If the hand-held X-ray generator 10 is configured not to include personal authentication means, the irradiation permission unit 113 connects online to the external device via the external communication unit 115 and transmits the captured biometric information and the authentication request. To do.

  The irradiation permission unit 113 activates the irradiation switch 123 on the condition that the first and second personal authentications are successful at least during the first operation when the handheld X-ray generator 10 is brought into the X-ray examination site. As described above, the first personal authentication that is the personal authentication of the administrator may not be required every time X-ray irradiation is performed. When the irradiation switch 123 is pressed, the irradiation permission unit 113 gives an irradiation instruction to the control unit 111. When receiving an irradiation instruction from the irradiation permission unit 113, the control unit 111 sends an irradiation drive signal to the X-ray tube 13. Thereby, X-ray irradiation operation by a registered (appointed) irradiator is enabled, and X-ray irradiation can be executed in conjunction with personal authentication.

  The irradiation permission unit 113 stores irradiation history information of X-ray irradiation in the irradiation history storage unit 116 every time X-ray irradiation is executed. The irradiation history information is not particularly limited as long as it is information related to the irradiation history. When the irradiation history information to be stored is prescribed by law or regulation, at least all or a part of the history information prescribed by law or the like may be stored. When the report destination of the irradiation history information is determined, the irradiation history information stored in the irradiation history storage unit 116 may be transmitted online to the external device serving as the report destination via the external communication unit 115, or externally It may be submitted in memory.

  The handheld X-ray generator 10 is connected to the display device 30 via a wireless link. Although a protocol for establishing a wireless link is not limited, in this example, a short-range wireless communication protocol of a direct communication method (Bluetooth (registered trademark) or ZigBee (registered trademark)) is adopted. The control unit 111 of the handheld X-ray generation device 10 transmits the position information detected by the GPS sensor 117 and the personally authenticated irradiation person information to the display device 30 in real time each time X-ray irradiation is executed. When the display device 30 acquires the position information of the X-ray examination place by another means, the position information provided by the handheld X-ray generator 10 is not essential.

  FIG. 6 is an external view of the portable X-ray image receiving apparatus 20 and shows a closed state and a half-open state. In this example, each component constituting the portable X-ray image receiving apparatus 20 is mounted on one box-type hand carrying case (attached case, suitcase, briefcase, etc.) 210 so that it can be carried freely. In the box-type hand carrying case 210, one side of the pair of lids 211 and 212 is rotatably connected by a hinge 213. The first flat sensor 221a is disposed so as to fill substantially the entire inner space of the one lid 211, and the second flat sensor 221b is disposed so as to substantially fill the entire inner space of the other lid 212. Has been. When the box-type carrying case 210 is closed, the upper surfaces of the two flat sensors 221a and 221b are more than the contact portions of the two lids 211 and 212 so that the two flat sensors 221a and 221b facing each other do not interfere and be damaged. Is set to not go out. The hinge 213 constitutes an opening / closing mechanism that opens and closes the flat sensor 221 (221a, 221b). The box-type hand carrying case 210 is provided with a handle 214 on the outer side of one lid 211 and keys 215a and 215b as in the case of a normal hand carrying case. Further, the box-type hand carry case 210 is provided with a control board 216 to which electronic devices other than the flat sensor 221 (221a, 221b) are attached. A part of the control board 216 appears outside the lid 211. In this example, the external connection terminal of the control board 216 and the antenna element of the communication unit appear outside the lid 211. Here, functional blocks of the portable X-ray image receiving apparatus 20 will be described.

  FIG. 7 is a functional block diagram of the portable X-ray image receiving apparatus 20. The portable X-ray image receiving apparatus 20 performs processing such as noise removal on the X-ray intensity data output from the flat sensors 221 (221a, 221b) in which the detection elements are arranged and the flat sensors 221 (221a, 221b). A signal processing circuit 222 to be added, a communication unit 223 that transmits the X-ray intensity data output from the signal processing circuit 222 to the display device 30 in real time, a control unit 224 that controls the operation of the entire device, and an open / close detection switch 225. It has. The flat sensor 221 (221a, 221b) can use an FPD (Flat Panel Detector). In FPD, when X-rays are irradiated to a panel on which semiconductor elements (detection elements) of about 100 microns are arranged, the elements are converted into electric signals to generate an image, and reading time is remarkably improved. In addition, since there is no need for erasure, the speed can be increased. The opening / closing detection switch 225 detects the opening / closing operation of the box-type carrying case 210. When it is detected that the box-type carrying case 210 has changed from the closed state to the opened state, a detection start signal is output to the control unit 224. Further, when it is detected that the box-type carrying case 210 has changed from the opened state to the closed state, a detection end signal is output to the control unit 224. In response to the detection start signal, the control unit 224 supplies power to the flat sensor 221 to control it so that X-rays can be detected. If an X-ray intensity equal to or greater than a predetermined value is detected, the control unit 224 sends the X to the display device 30 from the communication unit 223. Send line strength data. Upon receiving the detection end signal, the control unit 224 stops the power supply from the state in which the flat sensor 221 can detect the X-rays, and ends the operation. The communication unit 223 is connected to the display device 30 via a wireless link. A protocol for establishing a wireless link is not limited, but in this example, a short-range wireless communication protocol of a direct communication method is adopted. Note that the communication unit 223 may be connected to the handheld X-ray generator 10 via a wireless link. In this case, for example, only when the open / close detection switch 225 of the X-ray image receiving apparatus 20 detects the open state of the box-type carrying case 210, X-ray irradiation of the handheld X-ray generation apparatus 10 can be performed via the wireless link. It is good to comprise so that X-ray irradiation of the hand-held X-ray generator 10 may be controlled in other cases (closed state).

  The display device 30 includes a personal computer 31 and a display 32. The personal computer 31 is a communication function that establishes communication between the display device 30 and external devices (handheld X-ray generator 10, portable X-ray image receiver 20, monitoring server 40), and X-ray intensity data. It has an image processing function for processing and converting into an inspection image, and a display control function for displaying the inspection image on the display 32. Such a display device 30 can be composed of a tablet terminal. In this example, the personal computer 31 has a GPS function for acquiring position information on the X-ray examination site. The inspection information including at least the inspection image and the X-ray inspection place information among the inspection image, the irradiation information of the X-ray irradiation person, the X-ray inspection place information, and the date and time information on which the X-ray inspection is performed is made into a predetermined form. To the monitoring server 40 in real time. Note that the X-ray image receiving apparatus 20 may have a GPS function for acquiring position information on the X-ray inspection site, instead of the handheld X-ray generation apparatus 10 and the display apparatus 30.

Next, the operation of the present embodiment configured as described above will be described.
In order to clarify the adaptation standard of the X-ray examination using the hand-held X-ray generator 10, an irradiator is appointed in advance. The designated irradiator is registered in the hand-held X-ray generator 10. In addition to the appointed irradiator, an X-ray handling manager who manages the handheld X-ray generator 10 is registered in advance as a manager. For example, when the irradiation switch 123 is pressed long, the control unit 11 detects and activates the registration mode. In the registration mode, personal information other than biometric information (fingerprint data) is captured and registered from a personal computer connected to the handheld X-ray generator 10. Next, the biometric information of the irradiator and the administrator is fetched from the biometric information fetching unit 122 and stored in the registered biometric information storage unit 114 in association with the personal information. The order of registration is not particularly limited. After the administrator's personal information is registered for the first time, the personal information of the irradiator may be registered each time the irradiator is sequentially appointed. Simple registration that does not require registration of personal information other than biometric information may be employed. The personal information and the registered biometric information stored in the registered biometric information storage unit 114 may be transmitted from the external communication unit 115 to the external device.

  Next, when the X-ray inspection system is carried into a target facility such as an airport, a station, a sports facility, or an event venue, a first applicant who applies for permission as an X-ray handling manager will receive from the biological information capturing unit 122. Capture biometric information (fingerprint data). When the biological information is captured from the biological information capturing unit 122 in a state that is not in the registration mode, the control unit 111 causes the irradiation permission unit 113 to perform irradiation permission determination. The irradiation permission unit 113 passes the first applicant's biometric information (fingerprint data) to the biometric authentication unit 112 and requests personal authentication. The biometric authentication unit 112 collates with the registered biometric information registered in the registered biometric information storage unit 114 using the biometric information (fingerprint data) of the first applicant, and the registered biometric information that matches is registered. If so, personal authentication of the first applicant is terminated.

  Next, a monitor who becomes an X-ray irradiator looks around for a subject to be checked for baggage while moving in the target facility with the X-ray inspection system. When a subject to be checked for baggage is found, an X-ray inspection is performed at that location. Specifically, a baggage (for example, a bag) that is the subject OB is placed on the floor, and the flat sensor 221 is placed behind the bag. Next, authentication of an irradiator is performed using the handheld X-ray generator 10. That is, a second applicant (monitoring person) who applies for irradiation as an irradiator presses a finger against the biological information capturing unit 122 of the gripping unit 12 to capture biological information (fingerprint data). The irradiation permission unit 113 passes the second applicant's biometric information to the biometric authentication unit 112 and requests personal authentication. The biometric authentication unit 112 uses the second applicant's biometric information (fingerprint data) to collate with the registered biometric information registered in the registered biometric information storage unit 114, and if there is a matching registered biometric information, the second is performed. Terminate the applicant's personal authentication. When the biometric authentication unit 112 succeeds in personal authentication of the first applicant and the second applicant, the biometric authentication unit 112 passes the personal authentication result to the irradiation permission unit 113. The irradiation permission unit 113 has succeeded in personal authentication of the first applicant (the authentication at the site of the X-ray handling manager who is the first applicant has been completed first) and the second applicant. This makes it possible to perform an X-ray irradiation operation on the irradiation switch 123. In this state, when the irradiator presses the irradiation switch 123, an irradiation drive signal is sent from the control unit 111 to the X-ray tube 13. The X-ray tube 13 receives the irradiation drive signal and emits X-rays. Thereby, X-ray irradiation is performed in conjunction with personal authentication in the handheld X-ray generator 10. The information on the irradiator who executed the X-ray irradiation, the X irradiation position information, and the X-ray irradiation date / time information are transmitted to the display device 30. In the X-ray image receiving apparatus 20, X-rays transmitted through the subject OB are detected by the flat sensor 221. The X-ray intensity data is transmitted to the display device 30 and / or the monitoring server 40 via the communication unit 223 after the signal processing circuit 222 performs processing such as noise removal.

  The display device 30 generates an inspection image from the X-ray intensity data received from the X-ray image receiving device 20 and displays it on the display 32 in real time. For example, as shown in FIG. 8, an object (various bottles) or the like in a bag that is the subject OB is displayed as an inspection image (X-ray projection image). Classification such as liquid, metal, etc. is possible based on the X-ray transmittance. An inspection image in which the type of liquid, metal, combustibles, or the like is color-coded may be generated and displayed. The display device 30 transmits the inspection information including at least the inspection image and the inspection location information among the inspection image, the inspection location information, the irradiator information, and the X-ray irradiation date information to the monitoring server 40 in a predetermined form. Information sent from the hand-held X-ray generator 10 at the time of X-ray irradiation may be used for the examination location information, the irradiator information, and the X-ray irradiation date / time information. These pieces of information may be sent from the X-ray image receiving apparatus 20. Further, in the monitoring server 40, when the irradiation information is unnecessary, the irradiation information may be excluded from the examination information.

  On the other hand, in the handheld X-ray generator 10, irradiation history information is stored in the irradiation history storage unit 116. Specifically, the irradiation permission unit 113 performs “personal information regarding the administrator” and “personal information regarding the irradiation person permitted to apply for the X-ray irradiation in the process of a series of processes from personal authentication to X-ray irradiation. ”,“ Date and time of current X-ray irradiation ”,“ Location of current X-ray irradiation ”, and“ Identification information of handheld X-ray generator 10 that has performed X-ray irradiation ”, and at least one of these information Are stored in the irradiation history storage unit 116 as irradiation history information. The irradiation history information stored in the irradiation history storage unit 116 can be taken out as necessary. For example, if there is an obligation to report the irradiation history to a predetermined jurisdiction, the dedicated device installed on the handheld X-ray generator 10 by connecting online to an external device (eg, a management center device) designated by the jurisdiction The irradiation history information stored in the irradiation history storage unit 116 may be automatically collected by software. Alternatively, an external memory may be connected to the hand-held X-ray generator 10 and irradiation history information may be read from the irradiation history storage unit 116 and stored in the external memory. X-ray irradiation information and irradiator data may be stored in a database in an external device designated by the competent authority. For example, a database related to irradiation history may be constructed from the execution organization name (and / or facility name), irradiation information (date and time, place, radiation source, number of times, other information) and irradiation person information.

  In the monitoring server 40, the X-ray inspection result (inspection information) performed by the monitoring staff who is looking around is sent in real time from each place of the target facility. On the list monitor connected to the monitoring server 40, at least an inspection image and an inspection location are displayed in association with each other. If an inspection image including a dangerous material or the like listed in advance is detected, an alarm is displayed.

  As described above, according to the present embodiment, the personal authentication of the irradiator who performs the X-ray irradiation of the handheld X-ray generator 10 and the X-ray irradiation of the handheld X-ray generator 10 are linked. X-ray irradiation by those who are not done can be prevented. In addition, according to the present embodiment, the first personal authentication for performing personal authentication using the biometric information of the administrator for personal authentication executed prior to X-ray irradiation using the handheld X-ray generator 10; Since the second step of the second personal authentication, in which personal authentication is performed using the biometric information of the X-ray irradiator, even if the X-ray irradiator is appointed, X-ray irradiation cannot be executed without the administrator's permission. The system can be guaranteed and safe operation can be ensured. Further, according to the present embodiment, when the X-ray irradiation is executed by the handheld X-ray generator 10, the irradiation history information is stored in the irradiation history storage unit 116, so that the irradiation history can be managed. . Arbitrary information can be included in the irradiation history information according to the management / operation method related to the irradiation history. For example, the organization name, the name of the facility to be inspected, the X-ray irradiation results, the administrator, and the irradiation person can also be managed. It becomes possible.

  In the above description, the example in which the flat sensor 221 of the X-ray image receiving apparatus 20 is divided into two parts has been described, but the number of divisions is not limited to two. For example, it may be divided into four as shown in FIGS. The four-divided flat sensor shown in FIG. 9 is configured so that four flat sensors 221-1 to 221-4 can be folded into four via hinges. Further, the control board 216 is configured to have the same size as one of the four-divided plane sensors, and is connected to one side of one plane sensor so as to be rotatable by a hinge. The four-divided flat sensor shown in FIG. 10 is configured so that four flat sensors 221-1 to 221-4 can be folded into four via hinges, and a control board 216 is attached to one flat sensor 221-1. It has been incorporated.

  In the above description, the handheld X-ray generator 10 includes the biometric authentication unit 112 and the registered biometric information storage unit 114. However, an external device (for example, a management center device) connected to the handheld X-ray generator 10 is used. May be provided with a biometric authentication function. FIG. 11 is a configuration diagram of the management center device 70 having a biometric authentication function. The management center device 70 includes a safety manager information database 71 that stores safety manager information, a registered irradiator information database 72 that stores registered irradiator information, and a safety manager and a registered irradiator registered in the databases 71 and 72. A registered biometric information database 73 that stores biometric information for which registration has been applied is provided. The safety manager registered in the safety manager information database 71 is a manager who has applied for registration as an X-ray handling manager when using the handheld X-ray generator 10 in advance. The registered irradiator registered in the registered irradiator information database 72 is an irradiator who has been appointed as an X-ray irradiator when using the handheld X-ray generator 10 in advance and has been applied for registration.

  The management center device 70 receives a biometric authentication request from the handheld X-ray generation device 10 via the communication unit 74, and executes personal authentication based on authentication target person information and biometric information sent together with the biometric authentication request. Specifically, the corresponding registered biometric information is extracted from the safety manager information database 71 or the registered irradiator information database 72 based on the authentication subject person information, and personal authentication is performed in comparison with the received biometric information. The personal authentication result is transmitted to the handheld X-ray generation apparatus 10 that is the transmission source of the biometric authentication request. In addition, the history management unit 76 of the management center device 70 receives an irradiation history registration request from the operation device 20 via the communication unit 74, and stores the irradiation history information sent together with the registration request in the irradiation history information database 77. . In the irradiation history information database 77, X-ray irradiation information and irradiator data are stored in a database format. For example, the history management unit 76 converts the organization name, the name of the inspected facility, irradiation information (date and time, location, radiation source, number of times, other information), and irradiation person information into a database format related to irradiation history and stores it. .

  In addition, this invention is not limited to the said embodiment, It can implement variously. In each of the above-described embodiments, the system configuration, members, size, shape, and the like illustrated in the accompanying drawings are not limited to these, and can be appropriately changed within a range in which the effects of the present invention are exhibited. In addition, various modifications can be made without departing from the scope of the object of the present invention.

  For example, in the above embodiment, fingerprint authentication is performed as a personal authentication method, but vein authentication can also be adopted. In this case, the handheld X-ray generation apparatus 10 includes a vein reading device that reads vein information, and holds the vein information of the administrator and the irradiator who have been previously applied as registered biometric information. Further, for example, in the above embodiment, the personal authentication is performed in two stages, but may be performed in one stage.

  In the above-described embodiment, the biometric authentication unit 112 is exemplified as the personal authentication unit. However, the personal authentication unit only needs to perform personal authentication. For example, a card reader is provided instead of the biometric information capturing unit 122, a registered card information storage unit is provided instead of the registered biometric information storage unit 114, and a user ID corresponding to a card read by the card reader is stored in the registered card information storage unit. The irradiation switch 123 may be validated when it is stored as “with irradiation authority”. Also, instead of the biometric information capturing unit 122 and the registered biometric information storage unit 114, a user ID / password acquisition unit and a user ID / password storage unit are provided, and the user ID / password acquired by the user ID / password acquisition unit is a user. The irradiation switch 123 may be validated when it is stored in the ID / password storage unit and the user is “with irradiation authority”. In addition to these personal authentications, as in the above-described embodiment, a plurality of personal authentications are required, such as imposing the authentication of not only the X-ray irradiation person but also the administrator before the irradiation switch 123 is validated. Also good. Note that, as described above, these personal authentication functions may be provided in an external device.

  The present embodiment is a method other than the above-described method, and may be an X-ray inspection method equivalent to the processing described above performed by the X-ray inspection system. In addition, each process according to the present embodiment is not limited to the illustrated order. For example, some or all of the processes may be processed in different orders, in parallel, distributed, or omitted. For example, a part of the processing of each device may be executed by the host device.

DESCRIPTION OF SYMBOLS 10 Handheld X-ray generator 11 X-ray tube storage part 12 Gripping part 13 X-ray tube 14 Shielding material 15 Support member 16 Outer surface part 17 Collimator 20 Portable X-ray image receiver 30 Display device 31 Personal computer 32 Display 40 Monitoring Server 110 Control unit 111 Control unit 112 Biometric authentication unit 113 Irradiation permission unit 114 Registered biometric information storage unit 115 External communication unit 116 Irradiation history storage unit 117 GPS sensor 122 Biometric information take-in unit 123 Irradiation switch 210 Box-type hand carrying case 211, 212 Lid 221, 221 a, 221 b Planar sensor 222 Signal processing circuit 223 Communication unit 224 Control unit 225 Open / close detection switch

Claims (8)

A hand-held X-ray generator, a portable X-ray image receiving device that detects X-rays transmitted through the subject, and a display device that displays an examination image of the subject detected by the X-ray image receiving device. An X-ray inspection system provided,
The X-ray examination system, wherein the hand-held X-ray generator includes a personal authentication unit that performs personal authentication and an irradiation switch that enables an X-ray irradiation operation based on the personal authentication. The hand-held X-ray generator has a biological information capturing unit that captures personal biological information;
The X-ray examination system according to claim 1, wherein the personal authentication unit performs personal authentication based on the biometric information.   The X-ray inspection system according to claim 1, further comprising an irradiation history storage unit that stores irradiation history information of X-ray irradiation by the handheld X-ray generator.   Among the examination image of the subject, the location where the examination image was obtained, the time when the examination image was obtained, and the irradiator who performed the X-ray irradiation operation, at least two including the examination image of the subject are associated with each other. The X-ray inspection system according to claim 1, wherein the X-ray inspection system is transmitted to a monitoring server.   The hand-held X-ray generator includes an X-ray tube having an X-ray source, an X-ray tube storage portion that shields the X-ray tube and has an irradiation port formed in part, and the X-ray tube storage portion. An X-ray inspection system according to any one of claims 1 to 4, further comprising: a grip portion for an extended irradiator to grip, wherein the irradiation switch is provided in the grip portion.   In the hand-held X-ray generator, the X-ray tube storage part has a long cylindrical shape, and the irradiation switch is provided at a position where the X-ray tube storage part can be operated by a hand holding the grip part. The X-ray inspection system according to claim 5.   The X-ray image receiving apparatus includes a planar sensor in which detection elements are arranged, an open / close mechanism that makes the planar sensor folded and open, and an operation for detecting the planar sensor in conjunction with the opening operation of the planar sensor. The X-ray inspection system according to any one of claims 1 to 6, further comprising: a control unit that switches to the above state; and a communication unit that transmits X-ray intensity data to the display device.   The irradiation switch has two types of personal authentication: a first personal authentication for personal authentication using the administrator's biometric information and a second personal authentication for personal authentication using the biometric information of the irradiator. The X-ray irradiation operation can be performed after the first and second personal authentication at least during the first operation when the X-ray generation apparatus is brought into a new site with authentication. X-ray inspection system.

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