Abstract: A medical X-ray tube system for dental diagnosis and oral cancer therapy based on nano-material is disclosed. The medical X-ray tube system may include a body and an X-ray emission module emitting X-rays using a cathode having a chipped nano-structured material. The X-ray emission module may be separable from the body. The medical X-ray tube system may be formed as a pen that can be inserted in the oral cavity for displaying an accurate image of an inner location of the oral cavity needing a diagnosis. For treatment of oral cancer requiring an appropriate amount of radiation therapy, brachytherapy may be conducted without concern of exposure of normal tissues to radiation because radiation can be directly irradiated to a diseased part. The X-ray emission module may use a chipped nano-structured material, for example, a carbon nanotube.

Abstract: A travel stand for a mobile X-ray diagnostic machine with a laser detection system containing measurement devices to determine the position of the travel stand in a spatially fixed system of coordinates is provided. The measuring devices can operate by non-contact measurement techniques and that the position of the travel stand can be determined by techniques such as triangulation. An X-ray diagnostic machine with such a position detection system offers advantages in the 3D reconstruction from 2D X-ray projection images and in navigationally guided operations under X-ray monitoring.

Abstract: A readily relocatable X-ray imaging system for inspecting the contents of vehicles and containers, and a method for using the same. In a preferred embodiment, the system is relatively small in size, and is used for inspecting commercial vehicles, cargo containers, and other large objects. The X-ray imaging, system comprises a substantially arch-shaped collapsible frame having an X-ray source and detectors disposed thereon. The frame is preferably collapsible via a plurality of hinges disposed thereon. A deployment means may be attached to the frame for deploying the frame into an X-ray imaging position, and for collapsing the frame into a transport position. The collapsible X-ray frame may remain stationary during X-ray imaging while a vehicle or container is driven through or towed through an inspection area defined under the frame. Alternatively, the collapsible X-ray frame may be movable relative to a stationary vehicle or container during X-ray imaging.

Abstract: The present invention is a self-contained mobile inspection system and method and, more specifically, improved methods and systems for detecting materials concealed within a wide variety of receptacles and/or cargo containers. In particular, the present invention is an improved method and system for inspecting receptacles and/or cargo containers using a single boom placed on a turntable with pivot points to allow for folding and unfolding of the boom, such that the inspection system is relatively compact in a stowed configuration and has a low center of gravity lending to greater stability.

Abstract: A cassette allows radiation image information stored therein to be used immediately after an X-ray radiation image is captured in a patient's room, and a mobile X-ray image capturing apparatus incorporates such a cassette. The mobile X-ray image capturing apparatus has a cradle serving as a mount for receiving the cassette which has a radiation detector. The mobile X-ray image capturing apparatus captures a radiation image of the patient (subject) in the patient's room. The cassette serves as a mobile station. While the cassette (mobile X-ray image capturing apparatus) is moving, the radiation image information stored in the cassette is transmitted to a server via a transmitting and receiving terminal, a mobile hospital communication network, and a hospital LAN.

Abstract: A system for performing medical imaging in a mobile environment. The system includes a sensing array, a controller, and a mobile frame. The sensing array is configured to image a subject. The controller is in communication with the sensing array to control and process the acquisition performed by the sensing array. The sensing array is attached to the mobile frame, and the mobile frame includes wheels to facilitate movement of the system. At least one of the wheels of the base interacts with a wheel lock, such that the wheel lock prevents motion of the wheel when activated by the controller.

Abstract: There is described an x-ray system with an x-ray source, an x-ray detector and at least one industrial robot having at least three, in particular six, axes of rotation, in which the x-ray source and/or the x-ray detector are/is arranged, directly or by means of a bearer, on the industrial robot, and where the industrial robot is constructed to be mobile, in particular is arranged on a device trolley.

Abstract: A radiation imaging system includes a radiation head with a radiation source and an adjustable angular orientation. A radiation image detection device has a photostimulable medium that records an image according to radiation emitted from the radiation source. A measurement sensor apparatus, preferably inertial, is coupled sequentially to the photostimulable medium to provide three-dimensional data for determining the angular orientation of the photostimulable medium and to the radiation source for determining its angular orientation. There is at least one indicator responsive to the orientation data from the measurement sensor apparatus for indicating an orientation adjustment of the radiation source is needed in at least one direction.

Abstract: A vehicle cargo inspection station includes a building structure that has open first and second ends and a top portion forming a passageway therein. A mechanism automatically scans the cargo area of the existing vehicle. The scanning mechanism is movable within the passageway while the existing vehicle remains stationary such that cargo within the existing vehicle remains statically housed therein. The building structure is manufactured of durable and rigid material such that the structure provides a barrier between the scanning mechanism and the outside environment thereby protecting the scanning mechanism from damage by harsh environmental conditions.

Abstract: A mobile CT imaging system comprising: a housing having a center opening; and a CT imaging unit mounted to the housing, wherein the CT imaging unit is adapted to scan anatomical objects located within the center opening and generate images of the same, wherein the CT imaging unit comprises: a rotatable drum assembly disposed within the housing, concentric with the center opening; an X-ray tube mounted on the rotatable drum assembly and configured to emit an X-ray beam; and an X-ray detector mounted on the rotatable drum assembly in alignment with the X-ray beam; wherein the X-ray beam is disposed in an “off-center” configuration, adjacent to an entrance of the center opening.

Abstract: An imaging positioning system having a robotically positioned support structure is provided. By utilizing a robotic arm, imaging along multiple planes within a patient treatment room without having to move the patient is provided. Such a configuration allows multiple axis x-ray imaging, cone beam CT acquisitions having a dynamic field of view, and PET imaging within the treatment room. Rotation of the imaging panel on the support structure allows the imaging system to simulate a gantry rotation when a fixed beam is used for treatment. Beam line x-ray imaging is also provided by tilting the imaging panel or by moving the support structure on which the x-ray source is positioned. Laser distance scanning for collision avoidance and force torque sensing movement enhance the safety thereof. The support structure may be in the form of a ring along which the imaging components may move.

Abstract: A mobile imaging system comprises a motorized drive assembly having first and second drive wheels that are coupled to the motorized drive assembly. A column is coupled to and extends upwardly from the motorized drive assembly and is rotatable around a pivot point. An arm is coupled to the column and includes a radiation source mounted on an outer end thereof. A longitudinal axis extends parallel to the length of the mobile imaging system and is centered between the first and second drive wheels. A controller is configured to determine first and second velocities to drive the first and second drive wheels based on an angle of rotation of the column with respect to the longitudinal axis.

Abstract: The present invention discloses a mobile cantilever door-type container inspection system, in the art of radiation scanning imaging inspection technology. The system according to the present invention comprises a moveable scanning apparatus formed by a scanning frame and a remote control device, wherein the scanning frame comprises a radiation source and some detectors, wherein the radiation source or an apparatus cabin wherein the radiation source is disposed is connected with an L-shaped cantilever structure to form a door-type scanning frame, wherein beneath the radiation source or the apparatus cabin wherein the radiation source is disposed are provided with rollers that can reciprocatingly move on rails and are controlled by drive means. The detectors are disposed in a cross beam and a vertical beam of the cantilever structure of the door-type scanning frame. Rays of the radiation source are right in alignment with rows of detectors in the cantilever structure.

Abstract: Certain embodiments provide systems and methods for gantry support. Certain embodiments provide a mobile imaging system. The system includes a base and a gantry member moveably attached to the base. The gantry member includes an imaging source. The system also includes a gantry support positioned on the base for supporting the gantry member. The gantry support contacts the gantry member at one or more points in a range of motion for the gantry member. Certain embodiments provide a method for gantry member stabilization. The method includes providing a gantry support on a gantry base to provide support for an imaging system gantry member. The imaging system gantry member is attached to the gantry base. The method further includes positioning the gantry support with respect to the gantry member to support the gantry member along at least a portion of a path of movement of the gantry member.

Abstract: A vehicle-carried radiation inspection system has a simple structure with advantages of convenient operation, little scanning blind area and reliable safety performance. The system includes a loading vehicle, a lifting device mounted to the loading vehicle and a radiation scanning inspection device fixedly mounted to the lifting device so as to ascend/descend together with the lifting device. The lifting device is configured to enable the lifting device and the radiation scanning inspection device as a whole to be apart from the ground by a predetermined safety distance when the loading vehicle is moving, and to enable the minimum distance therebetween during inspection to be less than the predetermined safety distance. The radiation scanning inspection device may be switched between higher and lower positions as required with the ascending/descending of its combination with the lifting device.

Abstract: A displacement system for a C-arm arranged on a trolley is provided. The displacement system includes at least a first and at least a second guiding element arranged in a plane or parallel thereto. The first and second guiding element are arranged at right angles to one another and a displacement device arranged in a displaceable fashion along the first and second guiding element, with the displacement device being coupled to the guiding elements such that by rotating the displacement device about a drive axis, the displacement device is moved along the first and second guiding element. As a result, the displacement system prevents jamming as a result of leverage forces during displacement of the C-arm.

Abstract: A movement system for a C-arm. The movement system comprises at least one first guide element arranged in a plane, a movement device arranged to allow movement along the first guide element as well as a first motion link rotatable around a first axis of rotation standing at right angles to the plane. The movement device is connected rotatably to the first motion link to a second axis of rotation standing at right angles to the plane such that a movement of the movement device along the first guide element causes the second axis of rotation to be moved on a circular track around the first axis of rotation. The advantage of this is that the arm is prevented from jamming as a result of leverages during movement of a C-arm.

Abstract: A unified quality assurance technique to verify alignment of a radiation treatment delivery system. In one embodiment, a radiation treatment source is instructed to move to a preset source position. An image of the radiation treatment source at its actual source position is generated and compared against a reference image to determine whether the radiation treatment source correctly achieved the preset source position. In one embodiment, a positioning system is instructed to move a target detector to a preset target position. An image of the target detector at its actual target position is generated and compared against a reference target image to determine whether the positioning system correctly achieved the preset target position.

Abstract: A second support post supporting a main unit is swingably held by a vibration isolation mechanism on a first support post which is fixedly mounted in a compartment of a vehicle. The second support post supports thereon a first lock for engaging a bracket mounted on a wall of the vehicle to prevent the second support post and the main unit from being swingably displaced. A joint casing on the first support post houses therein a second lock for fixing the second support post to the first support post. When the vehicle is stopped for the main unit to capture an image of a subject, the first and second locks fix the main unit to the vehicle.

Abstract: The present invention discloses direction correcting apparatus and method thereof for a movable radiation inspecting system having a moving device. The direction correcting apparatus comprises: a direction detecting device for detecting a moving direction of the moving device and generating a detecting signal indicating the moving direction; a direction control device for controlling the moving direction of the moving device; and a control unit for calculating a deviation value between the moving direction and the predetermined direction based on the detected signal received from the direction detecting device, and the direction control device is driven according to the deviation value to correct the moving direction to the predetermined direction.

Abstract: In a radiation imaging apparatus having a radiation generator, an imaging unit including a detecting unit for detecting radiation to generate a radiation imagedata, a carriage for carrying the radiation generator, and an operating unit for providing an interface to a user, it is decided whether the radiation imaging apparatus is in a moving state or not. When it is decided that the radiation imaging apparatus is in a moving state, the operation function of the operating unit for the radiation detector and the imaging unit is limited.

Abstract: An anatomical imaging system comprising a CT machine and a transport mechanism mounted to the base of the CT machine, wherein the transport mechanism comprises a fine movement mechanism for moving the CT machine precisely, relative to the patient, during scanning.

Abstract: A mobile imaging system comprises a motorized drive assembly having first and second drive wheels that are coupled to the motorized drive assembly. A column is coupled to and extends upwardly from the motorized drive assembly and is rotatable around a pivot point. An arm is coupled to the column and includes a radiation source mounted on an outer end thereof. A longitudinal axis extends parallel to the length of the mobile imaging system and is centered between the first and second drive wheels. A controller is configured to determine first and second velocities to drive the first and second drive wheels based on an angle of rotation of the column with respect to the longitudinal axis.

Abstract: The present embodiments relate to a displacement apparatus for a C-arm arranged on a trolley. The displacement apparatus includes at least a first and at least a second guide element arranged in a plane, whereby the first and second guide elements are arranged at right angles to one another, a first displacement device which can be moved along the first guide element, and a second displacement device, which can be moved along the second guide element. A linking device connects the first and second displacement device in such a way that any movement of the first displacement device will result in the second displacement device being moved along the second guide element. This avoids the possibility of any jamming which may arise as a consequence of the leverage forces generated when a C-arm is moved.

Abstract: A device for guiding a magnetic element has magnet holders that can be pivoted about vertical axes from an operating position to a rest position, such that a patient to be examined can be examined using imaging devices, having X-ray radiation sources and X-ray detectors respectively attached to C-arms.

Abstract: A mobile apparatus. The mobile radiography apparatus includes: a frame; a transport mechanism coupled to the frame, the transport mechanism adapted to facilitate transport of the mobile apparatus between locations; an x-ray source mounted to the frame; a computed radiography (CR) scanner coupled to the frame and adapted to acquire one or more images from an image recording medium; a storage area disposed on the frame configured to removably retain at least one digital radiography (DR) detector; and a display coupled to the frame and connected to the CR scanner and the DR detector to display the one or more images acquired by the CR scanner or DR detector.

Abstract: Embodiments provide apparatus for medical imaging which includes: a base assembly including a set of wheels for rolling movement on a floor to transport the base assembly between locations; an imaging assembly for imaging the subject; and a movable support assembly connected between the base assembly and the imaging assembly for supporting the imaging assembly on the base assembly and for extending and retracting the imaging assembly from the base assembly. Embodiments provide apparatus for medical imaging wherein overall length of the apparatus with the imaging assembly extended exceeds overall length with the imaging assembly retracted.

Abstract: An X-ray recording device has an X-ray detector and an X-ray emitter aligned with one another on a mobile supporting device, the supporting device being supported by retainer on a stand unit and being displaceable along a horizontal translation axis and/or vertical translation axis. The retainer has only one first pivoting arm rotatably mounted on the stand unit for rotation around a first vertical rotational axis and only one second pivoting arm rotatably mounted on the first pivoting arm for rotation around a second vertical rotational axis. This X-ray recording device allows an alteration to the recording range to be undertaken at reduced cost and with a space-saving and stable configuration.

Abstract: The invention relates to a manufacturing facility comprising a building structure which encloses working space of the manufacturing facility, the building structure being designed to house a cyclotron and to be transportable by truck or rail to a destination site, wherein the manufacturing facility, except for lacking a cyclotron during transport, is substantially equipped during transport to produce and package a radiopharmaceutical. The invention also relates to a method of providing a manufacturing facility for producing a radioactive material, the method comprising the steps of designing the manufacturing facility to receive a cyclotron; equipping the manufacturing facility with a synthesis unit which is designed to receive a first radioactive material from the cyclotron and to produce a second radioactive material; transporting the manufacturing facility to a site; transporting the cyclotron to the site; and enclosing the cyclotron inside the manufacturing facility.

Abstract: A portable detector panel includes an X-ray detector assembly having an X-ray detecting surface on its surface, a box-like case that houses the X-ray detector assembly therein and whose upper part that is opposite to the X-ray detecting surface is X-ray transmissive, and a buffer member that is arranged between the inner side wall of the case and the X-ray detector assembly, is made of a hard material, and has a flexible shape with respect to the movement of the X-ray detector assembly in the direction generally parallel to the X-ray detecting surface.

Abstract: A mobile CT imaging system comprising: a housing having a center opening; and a CT imaging unit mounted to the housing, wherein the CT imaging unit is adapted to scan anatomical objects located within the center opening and generate images of the same, wherein the CT imaging unit comprises: a rotatable drum assembly disposed within the housing, concentric with the center opening; an X-ray tube mounted on the rotatable drum assembly and configured to emit an X-ray beam; and an X-ray detector mounted on the rotatable drum assembly in alignment with the X-ray beam; wherein the X-ray beam is disposed in an “off-center” configuration, adjacent to an entrance of the center opening.

Abstract: Systems and methods for inspecting an object with a scanned beam of penetrating radiation are disclosed. Scattered radiation from the beam is detected, in either the backward or forward direction. Characteristic values of the backscattered radiation are compared to expected reference values to characterize the object. Additionally, penetrating radiation transmitted through the inspected object may be combined with scatter information. In certain embodiments, the inspected field of view is less than 0.1 steradians, and the detector is separate from the source of penetrating radiation and is disposed, with respect to the object, such as to subtend greater than 0.5 steradians in the field of view of the object.

Abstract: An x-ray C-arm device has a C-arm rotatable around an orbital axis proceeding perpendicular to the plane of the C-arm. The C-arm carries an x-ray source and a radiation detector, and the overall center of gravity of the C-arm and the components carried thereby exerts a first torque on the C-arm. A counterbalancing device generates a second torque that at least partially compensates the first torque. The counterbalancing device includes a counterweight that is displaceably coupled to the C-arm by a gearing arrangement.

Abstract: For a radiation imaging inspection system, apparatus, and/or method, the system, particularly a trailer security inspection system, may include a protective wall forming an inspection passage for passage of a trailer, a radiation imaging system effecting security inspection of the trailer passing through the inspection passage, and a traction arrangement for hauling the trailer.

Abstract: A radiographic device may include a base, a support arm pivotably coupled to the base and defining a support axis, the support arm being movable between a normal position and two diametrically opposed, laterally rotated positions, and a radiographic head coupled to the support arm. A tension assembly may be coupled to the base and a linkage system may extend between the spring assembly and the support arm. The linkage system may include a hub rotatably coupled to the base and defining a center of rotation with which a lateral reference line intersects. A linkage may be partially entrained with the hub and may have a proximal end adapted for coupling to the support arm and a distal end adapted for coupling to the spring assembly. The linkage may include a pivot point joining the linkage proximal end and the linkage distal end. When the support arm is in the normal position, the linkage may be positioned with respect to the hub so that the lateral reference line also intersects the linkage pivot point.

Abstract: A method and a device for reworking or re-machining the surface and, in particular, the slide tracks of a slip ring while the slip ring is in a built-in state in an appliance or machine using the slip ring. The slip ring is rotated by means of a drive provided in the appliance for rotating the slip ring during normal operation, or by means of an auxiliary drive, while a surface-removing cutting tool or surface deforming tool held in a tool holder or carrier adapted to be attached to the appliance or machine is applied to the surface of the moving slip ring to re-machine or recondition the surface. The invention avoids the necessity of dismantling the appliance or machine for the purpose of removing the slip ring for repairs.

Abstract: A support assembly for an image detector operable to acquire an image of a subject on a table is provided. The support assembly includes an offset arm pivotally coupled from a carriage about a first axis. An elbow is pivotally coupled at the offset arm about a second axis. The first and second axes are vertically aligned and spaced an offset distance from one another. A mobile arm supports the image detector. The mobile arm is pivotally coupled at the elbow about a third axis that is horizontal aligned and in alignment with a central longitudinal axis of a table in a vertical plane. The mobile arm is also supported to rotate about a fourth axis that is horizontal aligned and in perpendicular alignment relative to the third axis. The first, second, third, and fourth axes all include a common point of intersection with one another.

Abstract: Methods and apparatus are provided through which mechanical members associated with a moving subsystem on a mobile X-ray medical imaging system are accelerated and decelerated using triangular acceleration and deceleration pulses having pulse widths that do not provide excitation energy that will cause unwanted vibrations in the members.

Abstract: The invention relates to a robot-controlled recording device comprising a robot with a number of axes of movement which are able to be controlled via a robot controller for moving a robotic hand and a recording system fitted to the robotic hand which is able to be moved by the robot for recording data of an object supported on a support unit. The robot controller is connected to an additional drive and controls this for moving the robotic hand synchronized to the axes of movement such that the additional drive would create a relative rotation and/or translation movement between the recording system and the support unit created by the movement of the robotic hand solely by a movement of the support unit with a stationary robotic hand. The drive is however connected not to the support unit but to an encoder for creating a synchronization signal for the recording.

Abstract: The present invention is a cargo inspection system, employing a radiation source, capable of scanning vehicles and/or cargo in a wide range of sizes, including conventional imaging areas as well as taller and bulkier enclosures at sufficiently optimal efficacy and overall throughput. In one embodiment, the present invention is a multiple pass inspection method for inspecting vehicles and their cargo, comprising a first pass scan, wherein said first pass scan includes moving a radiation source at a suitable scanning distance, rotating a radiation source at a suitable scanning angle, and moving said radiation source along an object under inspection.

Abstract: The inspection methods and systems of the present invention are mobile, rapidly deployable, and capable of scanning a wide variety of receptacles cost-effectively and accurately on uneven surfaces. The present invention is directed toward a portable inspection system for generating an image representation of target objects using a radiation source, comprising a mobile vehicle, a detector array physically attached to a movable boom having a proximal end and a distal end. The proximal end is physically attached to the vehicle. The invention also comprises at least one source of radiation. The radiation source is fixedly attached to the distal end of the boom, wherein the image is generated by introducing the target objects in between the radiation source and the detector array, exposing the objects to radiation, and detecting radiation.

Abstract: The inspection methods and systems of the present invention are mobile, rapidly deployable, and capable of scanning a wide variety of receptacles cost-effectively and accurately on uneven surfaces. The present invention is directed toward a portable inspection system for generating an image representation of target objects using a radiation source, comprising a mobile vehicle, a detector array physically attached to a movable boom having a proximal end and a distal end. The proximal end is physically attached to the vehicle. The invention also comprises at least one source of radiation. The radiation source is fixedly attached to the distal end of the boom, wherein the image is generated by introducing the target objects in between the radiation source and the detector array, exposing the objects to radiation, and detecting radiation.

Abstract: An imaging positioning system having a robotically positioned support structure is provided. By utilizing a robotic arm, imaging along multiple planes within a patient treatment room without having to move the patient is provided. Such a configuration allows multiple axis x-ray imaging, cone beam CT acquisitions having a dynamic field of view, and PET imaging within the treatment room. Rotation of the imaging panel on the support structure allows the imaging system to simulate a gantry rotation when a fixed beam is used for treatment. Beam line x-ray imaging is also provided by tilting the imaging panel or by moving the support structure on which the x-ray source is positioned. Laser distance scanning for collision avoidance and force torque sensing movement enhance the safety thereof. The support structure may be in the form of a ring along which the imaging components may move.

Abstract: The invention relates to an X-ray device, in which an X-ray source and an X-ray detector are attached, in an opposed arrangement oriented toward a rotational axis, to a common holder capable of rotating about the rotational axis. To simplify the design of the X-ray device, it is proposed that the holder is attached to the hand of a robot displaying six axes of rotation.

Abstract: A mobile vehicle inspection system includes a moving device; a driving device for driving the moving device to move during scanning inspection; a radiation source disposed on the moving device for emitting a ray; a rotary table pivotally disposed on the moving device; an upright post installed on the rotary table at a lower end of the upright post; transverse detector beam having an end connected with an upper end of the upright post; the upright detector beam having an upper end connected with the other end of the transverse detector beam, and extending downwards from the other end of the transverse detector beam so that the upright post, the transverse detector beam and the upright detector beam constitute a frame of a substantial inverted “U” shape, a ray emitted from the radiation source so as to inspect a vehicle to be inspected which passes through the inverted-“U”-shaped frame.

Abstract: A mobile apparatus. The mobile radiography apparatus includes: a frame; a transport mechanism coupled to the frame, the transport mechanism adapted to facilitate transport of the mobile apparatus between locations; an x-ray source mounted to the frame; a computed radiography (CR) scanner coupled to the frame and adapted to acquire one or more images from an image recording medium; a storage area disposed on the frame configured to removably retain at least one digital radiography (DR) detector; and a display coupled to the frame and connected to the CR scanner and the DR detector to display the one or more images acquired by the CR scanner or DR detector.

Abstract: A readily relocatable X-ray imaging system for inspecting the contents of vehicles and containers, and a method for using the same. In a preferred embodiment, the system is relatively small in size, and is used for inspecting commercial vehicles, cargo containers, and other large objects. The X-ray imaging, system comprises a substantially arch-shaped collapsible frame having an X-ray source and detectors disposed thereon. The frame is preferably collapsible via a plurality of hinges disposed thereon. A deployment means may be attached to the frame for deploying the frame into an X-ray imaging position, and for collapsing the frame into a transport position. The collapsible X-ray frame may remain stationary during X-ray imaging while a vehicle or container is driven through or towed through an inspection area defined under the frame. Alternatively, the collapsible X-ray frame may be movable relative to a stationary vehicle or container during X-ray imaging.

Abstract: A medical examination or intervention device that includes at least one component, in particular a C-arm, that can be moved under a user's control via a manual control device, as well as a collision monitoring device embodied for ascertaining an imminent collision and/or one having already occurred, with the control device having a haptic indicating means, controlled by the collision monitoring device, for indicating an imminent component collision and/or one having already occurred.

Abstract: A control device controls a radiography apparatus including a radiation generating unit that emits radiation, a radiation detecting unit that detects the radiation emitted from the radiation generating unit. The control device includes a positional-relationship detecting unit that detects a positional relationship between the radiation generating unit and the radiation detecting unit when the radiography apparatus performs a radiographic operation; and a control unit that controls the radiographic operation of the radiography apparatus based on the result of the detection performed by the positional-relationship detecting unit.

Abstract: Numerous structural/patient positioning features are provided for use with a dental x-ray machine. At least the following features are included: an inverted motor arrangement to actuate an outer support column with respect to an inner support column; wiper elements disposed between the inner and outer support columns to provide enhanced electrical grounding therebetween; adjustable roller subassemblies disposed between the inner and outer columns; a flexible electrical cable disposed inside the inner column; a self-aligning base for use with the inner column, the base having symmetric halves; an adaptable handgrip handrail extending from the outer column at compound oblique angles; a drive system for film transport; and a side projection system for patient head positioning, including multiple horizontal light beams.