Abstract: An imaging system includes an identification module, a determination module, and a display module. The identification module is configured to identify one or more first scanning parameters and one or more first display parameters corresponding to a first image, and to identify one or more second scanning parameters corresponding to scanning information acquired during a second scan. The determination module is configured to determine, based on the one or more first scanning parameters and the one or more second scanning parameters, one or more second display parameters so that the scanning information acquired during the second scan may be used to provide a second image appearing more similar to the first image. The display module is configured to use the one or more second display parameters to provide the second image configured to be displayed to a viewer.

Abstract: An X-ray optical component device having an X-ray optical component unit, a motor controller, and a connector. The connector has motor pins and motor terminals electrically connected to a motor when engaged with each other, and a signal pin and signal terminal for sensing detachment of the connector, the signal pin and signal terminal being capable of engaging with each other. A pin-side connector and a terminal-side connector are detachable. When the pin-side connector is detached from the terminal-side connector, the time that the signal pin is removed from the signal terminal is earlier than the time that the motor pins are removed from the motor terminals. During replacement of an X-ray optical component unit equipped with a motor for adjusting the position of an X-ray optical component, unwanted movement of the position of the X-ray optical component provided in the unit is prevented.

Abstract: An X-ray apparatus includes an X-ray radiation unit configured to radiate X-rays to an object; and a main control unit configured to acquire orientation information of the X-ray radiation unit and orientation information of an X-ray detector and select the X-ray detector based on the orientation information of the X-ray radiation unit and the orientation information of the X-ray detector.

Abstract: A radiation image detection apparatus, includes: a control unit configured to drive an imaging unit so that a radiation image data is acquired, an image receiving unit is reset after acquiring the radiation image data, and a dark image data is acquired; in which: the control unit changes at least one of a reset time of the image receiving unit and a reduction ratio of an reduced image data on the basis of the communication speed by such that the transmission of the reduced image data is completed at least prior to reading-out an electrical charge signal from the image receiving unit when acquiring the dark image.

Abstract: An imaging system includes an analog-to-digital converter configured to convert an analog pixel value into a first digital pixel value. The imaging system also includes an index value source configured to receive the first digital pixel value from the analog-to-digital converter and to generate a digital index value based on a comparison of the first digital pixel value to a digital reference value. In addition, the imaging system includes a transmitter in communication with the index value source and configured to transmit the digital index value. Further, the imaging system includes an image processing component configured to receive the digital index value and to generate a second digital pixel value based at least in part on the received digital index value and a lookup table of the image processing component.

Abstract: A scanning method and device are provided. The method includes: determining values for a first scanning dosage and a second scanning dosage used in a scanning process based on a trigger condition which varies regularly and attenuation fluctuations of an object to be scanned, wherein the first scanning dosage is higher than the second scanning dosage, and at least one of the first scanning dosage and the second scanning dosage has an inconstant value; and scanning a target position with the determined values. In the present disclosure, a scanning dosage may be reduced and different image noises may be kept consistent.

Abstract: A continuous-time delta-sigma digital-to-analog converter (DAC) includes a first delta-sigma modulator configured to quantize a most significant bit or bits of a digital input signal and produce a first quantization error signal, and a second multi-stage delta-sigma modulator configured to quantize less significant bits of the digital input signal. A first DAC is coupled to an output of the first delta-sigma modulator, and a second DAC is coupled to an output of the second noise-shaping filter. The second DAC has a greater resolution than the first DAC. A low pass output filter is coupled to a sum of an output of the first DAC and an output of the second DAC.

Abstract: A miniature, portable x-ray system may be configured to scan images stored on a phosphor. A flash circuit may be configured to project red light onto a phosphor and receive blue light from the phosphor. A digital monochrome camera may be configured to receive the blue light to capture an article near the phosphor.

Abstract: A portable X-ray imaging apparatus has an electronic cassette and a console capable of receiving an imaging order. The console has a wireless communication section, a trigger signal obtaining section, a connection determining section, a switching section, and a delivery requesting section. The wireless communication section receives radio waves and connects itself to an access point (AP). The trigger signal obtaining section obtains a trigger signal while the mobile radiography unit stands still. At the time of obtaining the trigger signal, the connection determining section determines one of the APs as an appropriate AP based on field intensity. The switching section switches the connection to the appropriate AP. Then, the delivery requesting section transmits a delivery request for the imaging order.

Abstract: A radiographic detector acquires a first partial exposed image signal during an image readout of each of the rows of photosensors, one row at a time. A first scan of each row includes measuring the charge delivered to each cell of the rows, including some rows having partial charge and other rows having full charge, and obtaining a first null image signal during the scan. A second scan includes measuring remaining charge delivered to those rows having partial charge. The null image signal data is subtracted from a sum of the first two scans.

Abstract: A portable X-ray imaging apparatus includes an electronic cassette for imaging of an X-ray image and transmitting the X-ray image wirelessly. An image receiving unit communicates with the electronic cassette and receives the X-ray image wirelessly. A passive monitoring device receives ambient electromagnetic waves to measure communication environment by passive monitoring. An active monitoring device performs data communication between the electronic cassette and the image receiving unit to measure the communication environment by active monitoring. Furthermore, an evaluation device detects a cause of a communication failure by considering a result of the passive monitoring and a result of the active monitoring. The evaluation device detects that the cause of the communication failure is a blocking object blocking radio waves or a relative position between the electronic cassette and the image receiving unit according to the results of the passive and active monitoring.

Abstract: A flat panel detector has pixels for obtaining image signals and detective pixels for detecting the amount of incident x-rays. A signal processing circuit is of a pipeline-type, wherein first and second buffer memories are connected to the output of an A/D converter. In a dose detecting operation, the signal processing circuit repeats primary cycles alternately with secondary cycles of a shorter length than the primary cycles. In the primary cycle, a dose detection signal based on electric charges from the detective pixels is input in the first buffer memory and, simultaneously, a dummy signal is output from the second buffer memory. In secondary cycle, the dose detection signal is output from the first buffer memory and, simultaneously, a second dummy signal is input in the second buffer memory. On the basis of the dose detection signals, a start-of-radiation detector detects the start of x-ray radiation.

Abstract: Embodiments of methods/apparatus can transition a DR detector imaging array to low power photosensor mode where a first voltage is applied across the photosensors. Embodiments of methods/apparatus can provide an area radiographic imaging array including a plurality of pixels arranged in a matrix at the imaging array where each pixel can include at least one electrically chargeable photosensor and at least one transistor, row address circuits, signal sensing circuits, and photosensor power control circuitry to maintain a first voltage across photosensors of the portion of the imaging array when the detector is between imaging operations. In one embodiment, photosensor power control circuitry can maintain the first voltage across the photosensors when a power consumption of the signal sensing circuits is less than 1% of the power consumption of the signal sensing circuits during readout of a signal from the portion of the imaging array.

Abstract: An apparatus and method for automatically generating radiation treatment planning parameters are disclosed. In accordance with the illustrative embodiment, a database is constructed that stores: (i) patient data and past treatment plans by expert human planners for these patients, and (ii) optimal treatment plans that are generated using multi-objective optimization and Pareto front search and that represent the best tradeoff opportunities of the patient case, and a predictive model (e.g., a neural network, a decision tree, a support vector machine [SVM], etc.) is then trained via a learning algorithm on a plurality of input/output mappings derived from the contents of the database. During training, the predictive model is trained to identify and infer patterns in the treatment plan data through a process of generalization. Once trained, the predictive model can then be used to automatically generate radiation treatment planning parameters for new patients.

Abstract: A method of removing residual charge from a photoconductive material includes applying a first voltage to the photoconductive material to form an electrostatic field during a collection operation in which x-rays are irradiated onto the photoconductive material; and applying a second voltage to the photoconductor to reduce an amount of residual charge therein during a removal operation, the second voltage being different from the first voltage. In one or more example embodiments, the photoconductive material may include Mercury Iodine (Hgl2).

Abstract: Disclosed herein are an X-ray imaging apparatus for optimizing radiography conditions upon radiography, and a control method thereof. The X-ray imaging apparatus includes: an input device configured to receive information about a patient; and a controller configured to conduct a search for a previously obtained X-ray image related to the information about the patient and a previously set radiography condition related to the information about the patient, and to set a radiography condition for a main-shot based on a result of the search.

Abstract: An X-ray exposure control device comprises: an X-ray detection element including a plurality of pixels for dose detection each detecting a dose during X-ray radiation; a region setting unit configured to set a use pixel region including pixels for use in dose detection from the plurality of pixels for dose detection during the X-ray radiation; a signal generating unit configured to generate a stop signal for stopping the X-ray radiation from an X-ray source according to the dose detected by each of the pixels for use in the dose detection within the use pixel region set by the region setting unit; and a transmission unit configured to transmit to the X-ray source the stop signal to stop the X-ray radiation as generated by the signal generating unit.

Abstract: A wireless device communicates with a medical image capturing apparatus to adjust a position of a table supporting an object to be imaged. An operator adjusts a position of the wireless device, the apparatus measures the wireless device's position, and adjusts the table based on the measured position. A method may include measuring distances between the wireless device and each of a plurality of respective detection units arranged along an axis. An axial distance may be measured between a reference point and the wireless device using measured distances and locations of the detection units relative to the reference point. The table is moved with respect to a gantry aperture of the apparatus based on the calculated axial distance. Controlled table movement may be movement into the gantry aperture and/or table height adjustment.

Abstract: Bias lines are provided for respective columns of pixels, and of a plurality of bias lines, bias lines provided at an interval of 10 mm are connected to a bias power source through a current detector. The remaining bias lines are connected directly to the bias power source without passing through the current detector. In each pixel, if electric charge is generated by a radiation detection element in accordance with the dose of irradiated radiation, a current flows in the bias line in accordance with the generated electric charge. The current detector detects the current flowing in the bias line, and a control unit detects, as the timing of starting irradiation of a radiation, when the detected current (current value) is equal to or greater than a threshold value, and starts radiographing of a radiological image.

Abstract: A CT system includes a gantry having a rotatable base and having an opening for receiving an object to be scanned, and an AC-to-DC converter coupleable to a 3-phase AC facility power, and coupled through a DC bus to a gantry motor to rotationally drive the rotatable base using DC power from the AC-to-DC converter. Rotational energy in the rotatable base is converted to DC electrical energy in the gantry motor during gantry braking, and provided to the DC bus.

Abstract: A high voltage sensing resistor disposed on a cylinder that at least partially surrounds an evacuated enclosure of an x-ray tube.

Abstract: An X-ray radiation device comprises a plurality of X-ray radiation units, each having an X-ray tube for generating an X-ray, a drive circuit for driving the X-ray tube, and a trunk line connected to the drive circuit, and a controller having a control circuit for controlling the X-ray radiation units. The trunk lines of the plurality of X-ray radiation units are connected in series to the control circuit so that the drive circuits of the plurality of X-ray radiation units are connected in parallel to the control circuit. Since the trunk lines of the plurality of X-ray radiation units are connected in series to the control circuit, the X-ray radiation units can be connected to each other and are not required to be connected one by one to the controller. This makes it possible to increase and decrease the number of units without complicating their wiring.

Abstract: Selection of at least one measurement field of a measurement chamber formed with a plurality of measurement fields, for dose monitoring when making an x-ray recording of an object is provided. A subset of measurement fields from the plurality of measurement fields of the measurement chamber is predetermined by selecting an orientation of the object. Measurement fields not belonging to the subset of measurement fields are blocked for the selection. At least one measurement field is set for dose monitoring when making an x-ray recording of the object by selecting measurement fields from the subset of measurement fields.

Abstract: An apparatus is provided for controlling an X-ray radiation field of an X-ray imaging apparatus including an X-ray generator and an X-ray detector arranged opposite to the X-ray generator. The apparatus includes a light-emitting unit configured to emit light and disposed adjacent to one of the X-ray generator and the X-ray detector, a light-receiving unit configured to detect the light emitted by the light-emitting unit and disposed adjacent to the other one of the X-ray generator and the X-ray detector, a radiation field setter configured to set an X-ray radiation field based on the detected light, and an X-ray driver configured to control driving of the X-ray generation units which correspond to the set X-ray radiation field, to emit an X-ray.

Abstract: A system for motion control of a cone-beam tomography recording device includes a drive system configured to position a paired radiation source and radiation detector relative to an object. The system further includes a controller configured to: initiate a trigger plan operable as a function of a constant frequency control signal, activate the paired radiation source and radiation detector in accordance with the trigger plan, drive, in response to the trigger plan, the first drive system to a steady operating state derived as a function of the constant frequency, capture a plurality of broadcast radiation signals representative of a plurality of two dimensional images of the object such that the two dimensional images are defined equidistant positions defined by the trigger plan and as a function of the constant frequency signal, and generate a three dimensional representation of the object based on the plurality of two dimensional images.

Abstract: One or more techniques and/or systems described herein implement, among other things, a parabolic curve for a ramp signal in a data acquisition component, where the curve can be effectively calibrated and used to provide a settling period to mitigate noise. That is, a ramp generator can generate a ramp signal that has a parabolic voltage curve with two substantially mirroring halves. A comparator can compare a first portion of the parabolic voltage curve with a voltage signal indicative of a number of photons detected by a detection array. A second portion of the parabolic voltage curve is used as a temporal delay so that circuitry, such as the ramp generator, can settle.

Abstract: A cassette for radiographic imaging includes a radiological image recording medium that detects radiation, a base portion that supports the radiological image recording medium, and a case that accommodates the radiological image recording medium and the base portion. The case includes a front member and a back member. The front member includes a top plate part to which radiation is incident and a side wall part which is vertically formed around an entire circumference of the edges of the top plate part, where the top plate part and the side wall part are integrally formed by the same material. The back member is configured to close a bottom part opening of the front member. The base portion is fixed to the front member.

Abstract: The present disclosure provides an X-ray imaging apparatus and method. When capturing an X-ray image using an automatic exposure request signal generated through detection of X-rays emitted from an X-ray generator, the X-ray imaging apparatus and method may verify validity of the automatic exposure request signal, thereby preventing unintentional generation of the automatic exposure request signal due to vibration, temperature change, noise, etc.

Abstract: A system for eliminating image artifacts caused by electromagnetic interference (EMI) on a portable digital x-ray detector that is capable of non-contact wireless inductively coupled power transfer. An X-ray imaging system comprising a portable digital X-ray detector having detector circuitry coupled to at least one receiver coil, and a power source including a power supply coupled to a signal filter device and coupled to at least one transmitter coil, wherein the power source is coupled to a detector receptacle of the X-ray imaging system, and wherein the at least one receiver coil and the at least one transmitter coil are inductively coupled to each other when the portable digital X-ray detector is located within the detector receptacle of the X-ray imaging system to transfer power from the power supply to the detector circuitry.

Abstract: A device is provided for addressing the rows of an active detection matrix for imaging by ionizing radiations comprising a plurality N of rows n of pixels, the addressing device being produced on a substrate on which the matrix is also producing and mainly comprising thin film transistors of single N or P type. The row addressing device can comprise a plurality of stages suitable for delivering at their respective outputs switching signals for switching the high and low levels of a signal applied to switching devices at the output on a corresponding row of the matrix and being characterized in that each stage comprises an input stage and an output stage, the input stage delivering an activation signal for the output stage, the output stage delivering, in case of activation, said switching signal for the corresponding row n.

Abstract: A system for eliminating image artifacts caused by electromagnetic interference (EMI) on a portable digital x-ray detector that is capable of non-contact wireless inductively coupled power transfer and capacitively coupled communication and data transfer. An X-ray imaging system comprising a portable digital X-ray detector inductively and capacitively coupled to a power source and communication device that is coupled to a detector receptacle of the X-ray imaging system when the portable digital X-ray detector is located within the detector receptacle to transfer power from a power supply of the power source and communication device to the portable digital X-ray detector and transfer communication and data between the power source and communication device and the portable digital X-ray detector.

Abstract: Disclosed are an X-ray device to inform a patient of X-ray irradiation through a sound and a method for controlling the same. The X-ray device includes an input portion to output a first-step press signal and a second-step press signal according to an operator input, a high-voltage generating portion to perform pre-heating, and to output a ready completion signal when the high-voltage generating portion completes pre-heating, a control portion to output a sound output signal when it receives both the second-step press signal output from the input portion and the ready completion signal output from the high-voltage generating portion, and a sound output portion to receive the sound output signal output from the control portion and to output a predetermined sound.

Abstract: An X-ray imaging device and a method for controlling the same generates radiant heat to elevate a temperature of an area of the X-ray imaging device contacting the breast and thereby reduces patient's discomfort, and controls a temperature to maintain the temperature. The X-ray imaging device includes an X-ray source to generate X-rays and emit the X-rays to an object, an X-ray detector to detect X-rays transmitted through the object and convert the X-rays into an electrical signal, an object contact area mounted on the X-ray detector a compression paddle to compress the object disposed on the object contact area, a heat source to generate heat and transfer the heat to at least one of the object contact area and the compression paddle, and an insulation member formed between the object contact area and the X-ray detector to block transfer of heat to the X-ray detector.

Abstract: Disclosed herein is a digital radiography system which provides detachable and portable flat panel detectors (hereinafter, referred to as ‘electronic cassettes’) and transreceives data recorded in the electronic cassettes in on-line through a network. The digital radiography system includes bucky trays on which a plurality of portable electronic cassettes is detachably mounted, and a workstation connected with the bucky trays through communication to identify the plurality of portable electronic cassettes mounted on the bucky trays and to download pre-processing files of the identified electronic cassettes through the network or a portable storage device or to store files, generated by the plurality of electronic cassettes, in the storage device.

Abstract: Apparatus for wirelessly controlling a guided imaging system based upon the relative motion of the user. The system includes a power supply, a memory, an x-ray source, an image intensifier and a wireless transceiver coupled to the image intensifier. A separate wireless input device comprising a wireless transmitter for communicating with the wireless transceiver of the imaging system may comprise one or more sensors capable of detecting force and directional movement. This detection of movement may then be transmitted to the imaging system and translated into position signals that may direct movement and position of the image intensifier (I-I) as part of the imaging system.

Abstract: A radiation imaging apparatus includes a pixel array having pixels including conversion elements and switching elements, a bias line for supplying a bias potential to the conversion elements; driving lines for supplying a signal to control the switching elements, a driving unit for performing an initialization operation of supplying a driving signal to each driving line group, switching each driving signal from an OFF voltage to an ON voltage, and then returning the driving signal to the OFF voltage; an acquisition unit configured to acquire a plurality of times in each driving cycle a signal value representing a current flowing through the bias line; a calculation unit configured to calculate radiation information based on the signal values; and a determination unit configured to determine whether irradiation of the pixel array with radiation is present based on the radiation information.

Abstract: A radiographic image capturing apparatus has a radiation source device including a radiation source for outputting radiation, a detector device including a radiation detector for detecting radiation that is transmitted through a subject when the subject is irradiated with radiation by the radiation source, and converting the detected radiation into a radiographic image, and an electric power supply limiting unit limiting a route for supply of electric power at least between the radiation source device and the detector device, and supplying electric power between the radiation source device and the detector device.

Abstract: An electronic device employs a seal member to seal a battery pack to a housing member to prevent contaminants from entering into a battery bay. The electronic device includes a housing member having an exterior surface a portion of which defines a recess, an electronic assembly contained inside the housing member, and an battery pack received in the recess in the exterior surface of the housing member and electrically connected to the electronic assembly inside the housing member. The seal member engages the battery pack and the housing member along an outer circumference of the battery pack and an inner circumference of the recess such that the seal member seals the gap between the outer circumference of the battery pack and the inner circumference of the recess, thereby preventing contaminants from an external environment from entering into an interior of the recess through the gap.

Abstract: A diagnostic device system has a weight-reduced rechargeable battery. When a portable radiographic apparatus and a portable X-ray source are carried to and used for imaging at a private home or a care home, the portable radiographic apparatus and the portable X-ray source are loaded on an automobile. When the charge amount of rechargeable batteries for operation housed in the portable radiographic apparatus or the portable X-ray source loaded on the automobile is low, or when there are plural destinations and the charge amount of the rechargeable batteries becomes low, a rechargeable battery for charging mounted on the automobile is used to charge the rechargeable batteries for operation while traveling. Because the rechargeable batteries for operation are charged while traveling, a large number of rechargeable batteries for operation does not need to be charged in advance, whereby the weight of the rechargeable batteries for operation can be reduced.

Abstract: An imaging apparatus has an AEC function that can prevent irregularities in photographed images, without being increased in size. The imaging apparatus comprises a plurality of pixels arranged in a matrix shape, each of the plurality of pixels including a conversion element for converting radiation or light into an electric charge, a plurality of lines that are connected to the plurality of pixel units and that extend in different directions to each other, a current monitor circuit that monitors currents flowing in the plurality of lines, and an arithmetic unit that calculates a two-dimensional distribution by performing back-projection processing with respect to the currents flowing in the plurality of lines monitored by the current monitor circuit.

Abstract: An X-ray imaging apparatus includes a plurality of X-ray detection cassettes, and an information processing section configured to communicate with the plurality of X-ray detection cassettes and to process information concerning the plurality of X-ray detection cassettes. Each of the plurality of X-ray detection cassettes transmits/receives, to/from the information processing section, first information that corresponds to an image control signal and image data of the X-ray detection cassette and second information that is different from the first information. In a case where a time at which the first information is transmitted/received and a time at which the second information is transmitted/received coincide with each other, the first information is preferentially transmitted/received.

Abstract: The X-ray imaging system includes an X-ray source, a console, an X-ray controller for controlling an operation of the X-ray source according to X-ray control parameters set by the console, and an X-ray detector for detecting X-ray radiated from the X-ray source and transmitted through a subject and thereby outputting an image signal of an X-ray image of the subject. The console includes an input unit for entering the X-ray control parameters, which are information for controlling the operations of the X-ray source and a controller for holding setting range information representing an allowable range of values of the X-ray control parameters and making a judgment as to whether values of the entered X-ray control parameters are settable values according to the setting range information and informing an user of the console of the judgment.

Abstract: A method and apparatus for generating at least one functional data set of a perfused region of the human or animal body are proposed. A first image data set is supplied comprising at least two images of the perfused region recorded at different times before and after an injection of contrast agent into a first artery supplying the region. A second image data set is supplied comprising at least two images of the perfused region recorded at different times before and after an injection of contrast agent into a second artery supplying the region. A first functional data set is generated by pixel-based calculation of at least one perfusion parameter from the first image data set. A second functional data set is generated by pixel-based calculation of at least one perfusion parameter from the second image data set.

Abstract: A method and apparatus are disclosed for obtaining an x-ray image from an x-ray imaging apparatus using a digital radiography receiver installs a retrofit connection apparatus that adapts the x-ray imaging apparatus for use with the digital radiography receiver by forming a receiver interface channel for communicating signals to and from the digital radiography receiver, forming an operator interface channel for routing at least an input expose signal from an operator control to the connection apparatus and forming a sensor interface channel to receive at least an active x-ray emission signal from a sensor positioned operatively near an x-ray system of the x-ray imaging system of the type configured for film or computed radiography. An input expose signal over the operator interface channel can initiate a reset of the digital radiography receiver over the receiver interface channel.

Abstract: Disclosed herein is a system for fast gain regulation in a gamma-ray spectroscopy instrument. The system includes a detector configured to generate a signal indicative of energy arriving at the detector, and a processor configured to determine one or more system performance indicators. The system also includes a controller configured to compute a first gain correction term based on one of more system performance indicators and change the device gain based on the computed first gain correction tem.

Abstract: An X-ray imaging system includes an X-ray image receiving unit configured to convert a spatial intensity distribution of X-ray radiation which has passed through a subject into image data, a wireless base station configured to perform wireless communication with the X-ray image receiving unit, and a control unit configured to limit a communication possible range of the wireless base station when imaging by the X-ray image receiving unit is controlled with respect to the communication possible range when image data captured by the X-ray image receiving unit is communicated.

Abstract: An X-ray imaging apparatus which obtains an X-ray image, the apparatus includes: an imaging unit including a plurality of detecting elements adapted to convert X-rays generated by an X-ray generating apparatus which outputs or stops X-rays in accordance with an operation instruction into an image signal; and an obtaining unit adapted to obtain an operation start timing of the X-ray generating apparatus based on an image signal output from the imaging unit and obtain a difference between a timing of an operation instruction to the X-ray generating apparatus and the operation start timing.

Abstract: A radiation imaging system for imaging an object to obtain a radiation image based on an imaging protocol, the system comprising: a storage unit configured to store a radiation image, with image information indicating an attribute of the radiation image being added thereto; a copying unit configured to, upon receiving an instruction to copy a radiation image stored in the storage unit, copy the radiation image and image information added to the radiation image; and a changing unit configured to change an item, of items included in copied image information copied by the copying unit, which is unique to each of radiation images and different from each other, in accordance with a copied image, thereby changing the copied image information.

Abstract: A mobile X-ray device 1 is provided with a main body 2 having an X-ray generating part 10 and an image reader 50 for reading X-ray image information from an imaging plate storing the X-ray image information, a running part 60 for running the main body 2, a battery 70 for storing direct current electrical energy to be supplied to the running part 60 and discharging a direct current at a rated voltage of the running part 60, and a direct current power source voltage conversion part 80 for transforming direct voltage of the battery 70 to a rated voltage of the image reader 50, wherein the rated voltage of the image reader 50 transformed by the direct current power source voltage conversion part 80 is applied to the image reader 50.

Abstract: Provided is an apparatus for spectrum estimation. The apparatus includes a threshold setter which sets at least one threshold in order to separate a spectrum into at least one energy bin; a reference value setter which sets one of the at least one threshold as a reference threshold; a threshold adjuster which adjusts the at least one threshold based on a predetermined condition; a comparer which compares the reference threshold with the adjusted threshold; and an output unit which outputs a spectrum in which the adjusted threshold is set, when a value which is determined based on the comparison result corresponds to a predetermined maximum value.