According to on embodiment, a photon counting CT apparatus includes a hybrid detector and processing circuitry. The hybrid detector includes CT detectors and PCCT detectors. The CT detectors output integral signals concerning the detected X-rays. The PCCT detectors output a count signal for each of a plurality of energy bands concerning the detected X-rays. The processing circuitry estimate a count signal concerning an estimation target CT detector of the CT detectors based on an integral signal output from the estimation target CT detector and a count signal output from the PCCT detector. And the processing circuitry reconstruct an image based on the estimated count signal and the count signal.

An X-ray detector including a substrate having opposite first and second faces, at least a first temperature sensor on the side of the first or second face, and at least one stack including of a copper oxide layer and a copper layer. The copper oxide layer is located between the copper layer and the substrate. The stack covers at least partially the first temperature sensor or is at least partially opposite the first temperature sensor.

A superconductive transition edge sensor detects radiation. A wave height analyzer generates an energy spectrum of radiation using a detection signal which is output from the superconductive transition edge sensor. A temperature control section and a base line monitor mechanism acquire a physical quantity of data having correlation with detection sensitivity of the superconductive transition edge sensor. A sensitivity correction arithmetic operation unit associates the physical quantity of a plurality of pieces of the acquired data at a plurality of different timings over a predetermined period of time with the detection signal at a certain timing and corrects the detection signal at the certain timing in accordance with the detection sensitivity of the superconductive transition edge sensor by using information regarding the correlation between the physical quantity of the plurality of pieces of data and the detection sensitivity of the superconductive transition edge sensor.

A wave height analyzer generates pre-sensitivity correction data using a radiation pulse signal transmitted from a room temperature amplifier, a heater value acquired from a temperature control section, a base line of a current flowing to a TES acquired from a base line monitor mechanism. The wave height analyzer outputs the pre-sensitivity correction data to a sensitivity correction arithmetic operation unit and receives post-sensitivity correction data, on which sensitivity correction is performed. The wave height analyzer generates composite data of a combination of the pre-sensitivity correction data and the post-sensitivity correction data. A spectrum display section receives pieces of composite data sequentially created by the wave height analyzer and displays at least one of a spectrum before sensitivity correction and a spectrum after sensitivity correction, in response to receiving an operator's request.

Applicant has disclosed an x-ray fluoroscopy machine made substantially entirely of parts which cannot be magnetized. By making the machine out of parts which cannot be magnetized, the x-ray machine can be placed in the same room as an MM machine without the fluoroscope affecting the magnetic field of the MRI machine. Both machines therefore are capable of operating (e.g., imaging) simultaneously in the same examination room. In the preferred embodiment, Applicant has disclosed making a mobile C-arm device, disclosed in U.S. Pat. No. 7,300,205, substantially out of materials which cannot be magnetized.

An imaging system (100) includes a radiation source (108) that emits radiation that traverses an examination region, a paralyzable photon counting detector pixel (110) that detects photons traversing the examination region and arriving at an input photon rate and that generates a signal indicative thereof, high flux electronics (122) that produce a total time over threshold value each integration period based on the signal, a reconstruction parameter identifier (124) that estimates the input photon rate based on the total time over threshold value and identifies a reconstruction parameter based on the estimate, and a reconstructor (130) that reconstructs the signal based on the identified reconstruction parameter.

Epoxy-based inline infrared (IR) filter assembly, and manufacture and use of the same. Co-axial infrared filter assemblies comprise a substantially cylindrical filter body forming a central cavity characterized by opposing holes at each end. The filter body forms an outer conductor, and SMA connectors coupled to the opposing holes at each end of the body are electrically coupled to form an inner conductor positioned along a long axis of the filter body. An infrared absorbing material (such as castable epoxy resin) fills the central cavity of the filter body. Methods for producing the co-axial infrared filter include pressing SMA connectors into the respective ends of the filter body, electrically coupling the SMA connectors, and filling the filter body with epoxy. Electronic systems for operating a dark matter detector include a feedline comprising a coaxial filter configured to advantageously block infrared noise.

A thermally coupled imager includes a single photon detection pixel electrically isolated but in thermal communication with a thermal readout bus via a thermally conductive galvanic isolator, wherein the single photon detection pixel receives a single photon and produces thermal energy that is communicated to the thermal readout bus. A position and time of arrival of the single photon received by the single photon detection pixel is determined from voltage pulses produced by the thermal readout bus in response to receiving the thermal energy from the single photon detection pixel.

Lithium-containing thiostannate spinel compounds having the formula Li.sub.2M.sub.1+xSn.sub.3xS.sub.8, where x is 0 or 1 and M is Mg, Fe, Mn, Ni, Ga, In, or a combination thereof; or the formula Li.sub.1.66CuSn.sub.3.33S.sub.8 are provided. Methods and devices for detecting incident neutrons and alpha-particles using the compounds are also provided. For thermal neutron detection applications, the compounds can be enriched with lithium-6 isotope (.sup.6Li) to enhance their neutron detecting capabilities.

A linear accelerator in data communication with a computing device and a programmable logic controller and including a magnetron, an electron gun that is configured to direct an accelerated beam of electrons at a target thereby generating a beam of X-rays, a primary collimator positioned beyond the target in a direction of the beam of X-rays, a secondary collimator coupled to an end of the primary collimator at which the beam of X-rays exit the primary collimator, an attenuating element and a calorimeter positioned within the primary collimator, and a reference detector positioned within the secondary collimator and configured to measure an X-ray radiation dose output of the linear accelerator on a pulse-by-pulse basis.