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8183531 |
System and method for tomography combining single and paired photons
Methods and systems for producing an image. Measurement data is obtained for a coincidence photon event, and a line projector function is generated based on the obtained measurement data....
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8180022 |
Linear X-ray detector using fiber optic face plate to alter optical path
An X-ray line-scan camera utilizes an image transferring means to alter the optical path and thus eliminates the X-ray radiation damage on the electrical components of the camera system. The camera...
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8164063 |
Time of flight measurements in positron emission tomography
A positron emission tomography apparatus (100) includes a plurality of radiation sensitive detector systems (106) and selective trigger systems (120). The selective trigger systems identify...
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8148701 |
Dosimeter with RFID tag
Described is device comprising dosimeter for measuring one or more doses of radiation; and an RFID tag comprising an antenna for communicating with an RFID tag reader and non-volatile memory for...
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8058622 |
Photomultiplier tube interface device
The present invention provides a photomultiplier tube interface device (PMT), comprising a PMT module and a circuit substrate. The PMT module comprises a plurality of pins formed at a front end. A...
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8050743 |
Positron emission detectors and configurations
A three-dimensional detector module for use in detecting annihilation photons generated by positrons emitted from radio-labeled sites within a body is formed from multiple solid state...
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8044357 |
Radiation dosimeter and radiation dose computing program
Light emitted in correspondence to ionizing radiation incident from a scintillator is fed through an optical fiber to a photoelectron multiplier tube by which it is converted to an electrical...
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8039804 |
Method for evaluating an image dataset acquired by a radiation-based image acquisition device
The invention relates to a method for evaluating an image dataset obtained by a radiation-based image acquisition device. A scatter background dataset is determined as a function of the image data....
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7947957 |
Radiation detection system using a multichannel spectrometer and method thereof
The invention provides a data processing device for processing an reference background spectrum and a measurement spectrum of a radioactive material represented by a multichannel spectrum to...
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7939807 |
Scintigraphic device with spatial super-resolution
A scintigraphic device includes: a collimator for receiving and directing electromagnetic radiation from a source; a scintillation structure associated with the collimator for receiving the...
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7873144 |
Pulsed x-ray for continuous detector correction
A radiographic imaging apparatus (10) comprises a primary radiation source (14) which projects a beam of radiation into an examination region (16). A detector (18) converts detected radiation...
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7855370 |
Pileup rejection in an energy-dispersive radiation spectrometry system
A method of detecting edges of a preamplifier signal including identifying a first portion of the signal wherein each part thereof has an instantaneous slope having a first polarity, identifying a...
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7829857 |
Radiation detector device
A radiation detector device is disclosed that includes a photosensor and a scintillator coupled to the photosensor. The scintillator includes a scintillator crystal having a first end proximal to...
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7818047 |
X-ray and gamma ray detector readout system
A readout electronics scheme is under development for high resolution, compact PET (positron emission tomography) imagers based on LSO (lutetium ortho-oxysilicate, Lu2SiO5) scintillator and...
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7807974 |
Nuclear medical diagnosis apparatus
A nuclear medical diagnosis apparatus capable of attaining improvement of the sensitivity by the reduction of a count loss of the data is provided. A data sort section inside a data acquisition...
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7763859 |
Pileup rejection in an energy-dispersive radiation spectrometry system
A method of detecting pileups includes testing an instantaneous slope of a preamplifier signal against a noise trigger value and, after the instantaneous slope has been determined to exceed the...
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7750311 |
Positron emission detectors and configurations
A three-dimensional detector module for use in detecting annihilation photons generated by positrons emitted from radio-labeled sites within a body is formed from multiple solid state...
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7732762 |
Method of inspecting a specimen surface, apparatus and use of fluorescent material
The invention relates to a method of inspecting a specimen surface. The method comprises the steps of generating a plurality of primary beams directed towards the specimen surface, focussing the...
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7732776 |
Radiation imaging apparatus, drive method and program of the radiation imaging apparatus
Provided is a radiation imaging apparatus including: a conversion unit including a plurality of pixels arranged two-dimensionally, wherein each of the pixels includes a conversion element for...
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7667205 |
Method for determining a particle and sensor device therefor
A method for determining a particle impact on a sensor device comprising M sensing areas, each impact causing a variation of at least one physical magnitude of several sensing portions, said method...
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7667204 |
Low-power positron emission tomography (PET) imaging system
The power consumed by a positron emission tomography (PET) imaging system is substantially reduced by utilizing an analog memory, such as a switch-capacitor analog memory, to sample and store...
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7619222 |
Automatic radioactivity analyzer of mixed liquid beta emitter
The present invention relates to an automatic radioactivity analyzer of mixed liquid beta emitter which comprises: a sample preparation part (1, 2, 3, 4, 5, 6, and 7) for extracting a liquid sample...
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7573036 |
Method and apparatus for processing of detector signals
A method and an apparatus are disclosed for processing of detector signals, for example in nuclear-medical imaging. In at least one disclosed embodiment, the signals from N photodetectors are...
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7541591 |
Radiation imaging apparatus, system and method as well as program
An object hereof is to restrain occurrence of artifact in an acquired radiation image with comparatively simple configuration without providing wiring between a radiation source and a radiation...
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7531818 |
Multiple room radiation treatment system
The present invention refers to a radiation system (1) comprising an excentric gantry (100) arranged in connection with multiple treatment rooms (61-68) separated by radiation-shielding separating...
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7511278 |
Apparatus for detecting particles
An apparatus for detecting particles, comprising a plurality of electrically conductive structures disposed on a support element. The structures are electrically insulated from one another and each...
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7504635 |
Gamma-ray camera system
A scintillator crystal (26) based gamma-ray camera system is described. The gamma-ray camera system includes a spectra processing component for (34) providing improved energy resolution over that...
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7502442 |
X-ray inspection system and method
An X-ray inspection system in which a thin X-ray absorber is placed upstream of an object under investigation so as to remove low energy X-rays, typically below 0.5 MeV. The absorber may be a sheet...
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7462837 |
Nuclide identifier system
In a preferred embodiment, a method of identifying nuclides, including the steps of: determining spectral continuum via a peak erosion process to render a residual peak spectrum; filtering a...
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7456409 |
Low noise image data capture for digital radiography
A low noise digital radiography image capture system employs a two-dimensional array of pixel sites in the image capture panel with each site having an analog-to-digital converter to digitize...
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7439515 |
Pipeline processing of pulse pile-up correction in a nuclear medicine imaging system
Correction of scintillation event data from a nuclear medicine imaging system for effects of pulse pile-up is carried out by separating event data packets into total energy and individual detector...
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7420176 |
SPECT apparatus
A SPECT apparatus has a two-dimensional detector that detects radiations from RIs in a patient via a collimator. A correction processing unit corrects plural two-dimensional projection...
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7385200 |
Re-binning method for nuclear medicine imaging devices
A generalized rebinning method transforms SPECT projection data acquired with a first type of collimator into projection data as if it were acquired with a second type of collimator, for subsequent...
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7368722 |
Method and apparatus for detecting ionizing radiation
A method for detecting ionizing radiation with the aid of a scintillation counter and a photomultiplier using an inorganic solid-matter scintillator that incorporates at least one decay time...
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7345283 |
Filtered back-projection algorithm for Compton telescopes
A method for the conversion of Compton camera data into a 2D image of the incident-radiation flux on the celestial sphere includes detecting coincident gamma radiation flux arriving from various...
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7304307 |
PMT signal correlation filter
A method of generating a filter (40) for a nuclear medicine system (20) where the filter selects valid detected radiation events for image processing. A dataset (60) is provided that is indicative...
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7279683 |
Distance measurement apparatus of gamma ray source using multilayered ray detector
Rays incident upon a plurality of detection plates arranged along a normal direction are detected. A distance between the ray and the ray source is estimated based on the number of counted rays...
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7279685 |
Radiation detector
The invention is a digital radiation detector utilizing the stable timing functions of a microcontroller or plurality of microcontrolling devices to perform three independent functions. A first...
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7265353 |
Data acquisition, control, and spectral analysis software for multi-channel analyzers
A system for detecting and identifying low-level (weak) radioactive sources moving past stationary detectors. The system, which can detect low-level sources moving at speeds of 30 m/s (about 70...
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7262416 |
Gamma camera with dynamic threshold
A method of locating an event with a gamma camera (12) of an emission computed tomography (ECT) scanner (10) is provided. The gamma camera (12) includes a matrix of sensors (22) situated to view...
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7247855 |
Portable nuclear detector
A portable nuclear material detector generally includes a scintillating fiber radiation sensor, a light detector, a conditioning circuit, a frequency shift keying (FSK) circuit, a fast Fourier...
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7242004 |
Image correction method, image correction apparatus, and image correction program
The image correction method according to an embodiment of the present invention includes the steps of: (a) generating an absorption correction map by replacing a CT value of each pixel of a CT...
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7238946 |
Nuclear imaging system using scintillation bar detectors and method for event position calculation using the same
A gamma camera having a scintillation detector formed of multiple bar detector modules. The bar detector modules in turn are formed of multiple scintillation crystal bars, each being designed to...
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7202479 |
Method for assigning a pulse response to one of a plurality of pulse types with different decay times and device for carrying out said method
A method for assigning a pulse profile, in particular a pulse profile of a scintillation detector having at least two scintillation materials with different decay characteristics, to one of a...
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7199370 |
Device and method for digitizing gamma ray energy and characterizing peak time and decay time constant without the use of ADC
A device and method used in high resolution positron emission tomography (PET) systems for digitizing gamma ray energy and characterizing peak time and decay time constant, models a voltage pulse...
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7186984 |
Method for quantifying the radioactivity of living structures of small dimensions by employing emission tomography
The invention relates to a process of quantification of the radioactivity of living tissue structures by emission tomography to determine the concentration of a radioactive tracer. It includes the...
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7164130 |
Signal enhancement module
Events of interest are detected within a gamma ray detection system. Characteristics of undesired signals, including a multiplicity of events within the signal, a density of events within the...
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7132664 |
Method and apparatus for improving PET detectors
The present invention is directed to a system, method and software program product for implementing 3-D Complete-Body-Screening medical imaging which combines the benefits of the functional imaging...
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7109490 |
Method and medical device designed for implementing this method
A method is for restoring a signal of a defective channel of a beam detector, which has a multitude of channels and by means of which projections are recorded from different directions of...
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7102137 |
Method and apparatus for improving slice to slice resolution by staggering cells in the Z-axis
The present invention provides a CT detector module with cell summing in the Z-direction and cell staggering in the X-direction. The present invention also provides a method for implementing the...
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