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JP6016835B2 |
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JP6012610B2 |
The present invention provides a method and an apparatus for calibrating a first self-powered neutron detector for long term use in a nuclear reactor core with a second self-powered neutron detector, where the emitter material of the sec...
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JP6004662B2 |
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JP6002579B2 |
An apparatus for inspecting the contents of a cargo container includes a neutron source having an ion source configured to provide deuterium or tritium ions and an accelerator configured to accelerate the ions toward a target having at l...
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JP5997869B1 |
As the nuclear capture reaction material which a scintillator unit of a thermal neutron detecting device of an embodiment is laminated on the gamma ray [of a scintillator layer which emits light by incidence of a gamma ray or a charged p...
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JP5999064B2 |
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JP2016121896A |
To provide a radiation measurement apparatus and a radiation measurement method capable of precisely measuring radiation level in the vicinity of the surface of molten fuel.The radiation measurement apparatus includes: a detector guide t...
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JP2016079196A |
To provide a resin composition with which LiAlXFparticle (X is an alkali earth metal) high in usefulness as a neutron scintillator and which is excellent in extraction efficiency of a scintillation light.There is provided a curable compo...
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JP2016080666A |
To provide an apparatus and a method for grasping reactivity in the vicinity of a place where fuel debris is collected.A spot neutron multiplication characteristics measuring apparatus 10 includes: a first neutron detection scheme 41 hav...
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JP5916421B2 |
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JP5905956B2 |
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JP5894916B2 |
[Problems to be Solved] A phoswich radiation detector, which can easily discriminate between detection signals on gamma rays and thermal neutrons, and which can selectively acquire signals on thermal neutrons, is provided. [Means to Solv...
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JP5890628B2 |
Certain embodiments of the invention may include systems, methods, and apparatus for providing anode and cathode electrical separation in detectors. According to an example embodiment of the invention, a method is presented for providing...
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JP5889878B2 |
The invention relates to a method for providing boron nanoparticles, characterised in that it comprises at least the following steps: synthesising a boron/lithium LiB intermetallic compound by reacting a mixture of boron and lithium in a...
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JP5889201B2 |
[Problems to be Solved] A neutron scintillator excellent in neutron detection efficiency and n/³ discrimination ability, and a metal fluoride eutectic preferred for the neutron scintillator are provided. [Means to Solve the Problems] A ...
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JP2016038273A |
To measure the use time lengths of scintillators of neutron ray detectors.A use time measuring unit 40 for measuring a use time of a scintillator 13 of a neutron ray detector 12 is equipped with a light source 41 that emits excitation li...
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JP5889202B2 |
[Problems to be Solved] A neutron scintillator excellent in detection efficiency for neutrons, an S/N ratio, and n/³ discrimination ability, and a eutectic preferred for the neutron scintillator are provided. [Means to Solve the Problem...
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JP5877417B2 |
[Problems to be Solved] A colquiriite-type crystal preferred for a scintillator for neutron detection, which has high sensitivity to neutron and which is reduced in background noise attributed to ³ rays; a scintillator for neutron detec...
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JP5859668B2 |
A neutron spectrometer that is more accurate, faster, and more-portable than conventional spectrometers includes an organic scintillator responsive to neutrons and gammas and an inorganic scintillator that captures neutrons. A processor ...
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JP5846574B2 |
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JP5846960B2 |
Provided is a radiation detector with improved n/³ discrimination and usable even under high counting rate conditions with a reduced load on a signal-processing system. The detector capable of distinguishing neutron and gamma-ray events...
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JP5842292B2 |
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JP2015535082A |
The present invention comprises a hybrid structure composed of a solid phase and a liquid phase, the solid phase having a series of grooves along the surface of one surface, and the first electrode of the detector is formed on one surfac...
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JP2015203660A |
To provide a neutron measurement device capable of measuring neutrons in a nuclear reactor using a diamond semiconductor.A neutron measurement device of the present invention for measuring neutrons in a nuclear reactor has a neutron dete...
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JP2015187567A |
To provide a radiation measuring device capable of detecting a plurality of types of radiations from arbitrary directions and identifying three-dimensional positions and types of radiation sources from obtained detection signals.A radiat...
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JP5798724B2 |
A neutron spectrometer is disclosed, which consists of a Helium-3 proportional counter connected by cable to signal and data processing circuits, and a series of moderator shells and moderator lids. The series of cylindrical moderator sh...
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JP5763878B2 |
A boiling water reactor core (12) power level monitoring system includes a desired length of high dielectric, non-linear material insulated coaxial type cable (20) in close proximity to the reactor core (12) and a time domain reflectomet...
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JP5761986B2 |
Provided is a scintillator for neutrons that allows the detection of neutrons with superb sensitivity and that is little affected by background noise derived from ³-rays, and a neutron detector that uses the neutron scintillator. The sc...
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JP2015121510A |
To provide a radiation measuring device capable of discriminating a γ-ray sum peak of an interfering nuclide from a γ-ray peak of a measurement target nuclide and estimating whether fuel debris is present in a nuclear reactor plant.A r...
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JP2015111107A |
To provide a scintillator and a radiation detector excellent in position resolution.Provided is a scintillator comprising: a first crystal phase including a plurality of unidirectional columnar crystals; and a second crystal phase coveri...
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JP5737978B2 |
Provided is a neutron beam detection scintillator that not only releases fluorescent light of a release wavelength that can be received by a photomultiplier tube, but also releases fluorescent light of a release wavelength that a compact...
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JP5737974B2 |
The present invention is: a neutron beam detection scintillator that comprises a colquiriite-type fluoride monocrystal containing at least one period 4 element selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn, ...
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JP2015087115A |
To provide a neutron count analyzer and radiation measuring device which can perform the energy analysis of a gamma ray and the energy analysis of a neutron over a wide range in a gamma-ray and neutron mixed field with a single device.A ...
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JP5713810B2 |
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JP5710352B2 |
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JP2015512505A |
A directional position sensing fast neutron sensor system is disclosed. The system includes one or more acoustically tensioned metastable liquid detectors (ATMFDs) to orient the source of incident neutron radiation. The system was used t...
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JP2015510589A |
The present invention provides a gamma-ray-neutron detector based on a mixture of thermal neutron absorbers that emit heavy particles following a heat capture reaction. In one configuration,10A B-based detector is used in a parallel elec...
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JP2015040720A |
To provide a neutron measurement technique which is capable of maintaining continuity between two measurement systems even in the case of a sudden change of a neutron signal.A neutron measurement device 10 includes: a neutron detector 11...
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JP5665783B2 |
A neutron measurement apparatus includes: an analog signal processor; a digitizing processor; an FFT calculation processor; and a signal processor. The analog signal processor amplifies alternating current components of detector output s...
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JP2015010837A |
To provide a compact, light-weight and easily manufacturable radiation-ray measurement device that measures intensity of a neutron under an environment high in a gamma-ray dose.A radiation-ray measurement device comprises: a photostimula...
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JP5652903B2 |
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JP5652904B2 |
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JP2015001451A |
To provide a device and method for storing a nuclear fuel material, capable of guaranteeing the subcriticality of a stored nuclear fuel material even when the environment around a storage container is changed.A device 1 for storing a nuc...
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JP5634285B2 |
To provide a colquiriite type crystal suitable for a scintillator for neutron detection having high sensitivity to a neutron beam and having little background noise originated in γrays, and to provide a scintillator for neutron detectio...
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JP2014527618A |
Drilling well logging equipment and systems, including scintillators, arranged to interact with scattering source neutrons received from the target formation. The scintillator emits luminescence in response to its interaction with scatte...
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JP2014190754A |
To provide a neutron dosimetry device capable of measuring the dose of neutron rays during irradiation and suppressing deterioration of irradiation accuracy of neutron rays by a detector, and provide a neutron capture therapy device.A ne...
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JP2014185983A |
To provide a dose rate measuring method that realizes more accurate measurement of a dose rate of a structural member in a nuclear power plant.An electrode holder equipped with an action electrode and a counter electrode is arranged in a...
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JP5598905B2 |
A neutron image detection method is disclosed, which collects a fluorescent light generated by a neutron incident at a designated position interval in one-dimensional geometry and determines an incident position of the neutron by detecti...
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JP2014170642A |
To provide a substrate for electron amplification which can achieve a sufficient amplification factor while suppressing the occurrence of discharge in electron avalanche amplification, and to provide a method for manufacturing such a sub...
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JP5589196B2 |
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