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JP4635210B2 |
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JP4635212B2 |
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JP4635211B2 |
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JP4625557B2 |
To ensure the performance of startup range monitor detector even in the case the startup range monitor detectors are integrated in a detector assembly tube by thinning and prolonging. A detector assembly tube 3 containing inside a local,...
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JP2011017709A |
To provide a rapid and effective inspection device for a vehicle inner chamber, a baggage container, or other objects, without a staff for complex inspection.An inspection system is to inspect an object to be inspected including a human ...
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JP4601713B2 |
A multi-stage process detects and identifies radiation, explosives, and special materials within a shipping container. The process utilizes radiation sensors configured as nodes on a distributed network. The process collects radiation da...
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JP4601838B2 |
To evaluate a burn-up of a spent fuel assembly by correcting a positional shift in measurement to provide a precise burn-up data. This burn-up evaluating method has a neutron measuring step for arranging a neutron detector group 5 having...
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JP2010276561A |
To provide a compact neutron dosimeter which can suppress a difference between an actual dose and a display dose.A neutron dosimeter includes: a mixed gas proportional counter tube 100, where 3He and CH4 are mixed and sealed at a prescri...
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JP4590588B2 |
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JP4587843B2 |
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JP4583480B2 |
In a neutron dosimeter, G(L) function data, which causes the tendency of a characteristic when neutron energy is plotted along the horizontal axis and the ambient dose equivalent (1 cm dose equivalent) is plotted along the vertical axis ...
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JP4576368B2 |
In a neutron moderator, a neutron irradiation method, and a hazardous substance detection apparatus, an inspection chamber (21) where an inspection target (A) can be inserted and removed is provided. Around this inspection chamber (21), ...
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JP2010223632A |
To provide a compact neutron-energy measuring apparatus which can evaluate neutron average energy, simply and in a short time.The neutron-energy measuring apparatus includes a neutron detection unit 100, having a structure in which two t...
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JP4552020B2 |
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JP4548732B2 |
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JP4538639B2 |
To easily download the same program to all FPGA on a slave substrate side without being accompanied by any complicated program changing operation. A data collection device for neutron measurement includes a plurality of slave substrates ...
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JP4533510B2 |
To provide a reactor output monitor in which the total system can be simplified while satisfying a matter required for a safety protective system, i.e., redundancy and electrical/physical separation of the system, and reliability, econom...
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JP2010181412A |
To provide a radiation discriminating/measuring device for irradiating a measuring object and discriminating and measuring α rays, β rays, γ rays, neutron beams, and X-rays contained in the obtained radiation.The measuring object 4, a...
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JP2010175570A |
To acquire a two-dimensional image of a radiation by detecting fluorescence subjected to wavelength conversion.Grooves having a depth of a half or more of the thickness of a wavelength shifter plate are formed at intervals determined in ...
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JP4512780B2 |
To provide a small-sized and long-life multi-purpose radiation environment monitoring element for performing three kinds of measurements, neutron fluence, gamma-ray dosage, and temperature, using a single sensor part. This multi-purpose ...
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JP4509489B2 |
To provide a highly reliable radiation measuring and monitoring device for security which can improve the verifiability of functions. A signal processing unit 12 which has high-integration logic elements corresponding to functions of pro...
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JP4481539B2 |
To improve the measurement accuracy of a system and reliability of the whole system. The fixed in-core instrumentation system is provided with a plurality of detectors 103 provided with a thermocouple thermometer 101 and a heating resist...
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JP4477515B2 |
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JP2010112726A |
To accurately determine the nuclide composition of a fissionable material of a measurement object where Pu-fissionable and U-fissionable materials are mixed, even if their abundance ratios are unknown.Passive neutron measurement that doe...
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JP4465457B2 |
To provide a radiation detector for discriminating gamma rays, X-rays or electron beam and particle radiation in the radiation detector for detecting phonons generated on a base by radiation absorption by a superconducting tunnel junctio...
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JP2010085415A |
To improve the counting rate of a two-dimensional radiation image detector.This two-dimensional image detector uses a scintillator, liquid scintillator, or phosphor as a detection medium, detects fluorescence occurring from these detecti...
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JP2010078459A |
To detect existence of a breakage and a breakage spot of a heat exchanger tube highly accurately in a short period of time.This device has: a gas leak first detector 16 and a gas leak second detector 18 for detecting leak of He gas flowi...
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JP4417675B2 |
A multi-photon absorber medium is of a predetermined thickness and contains multi-photon absorber material. The medium causes photo-reaction by multi-photon absorption upon receipt of light projected inward from one side. The reactivity ...
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JP4415095B2 |
The characteristics of the phosphor ZnS:Ag,Cl which has a considerably high fluorescence yield in response to incident particles thus allowing for their easy detection are used as such and combined with the finding that the fluorescence ...
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JP4411400B2 |
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JP2010503873A |
A method includes detecting a neutron based on a time proximity of a first signal and a second signal. The first signal indicates detection of at least one of a neutron and a gamma ray. The second signal indicates detection of a gamma ray.
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JP4406699B2 |
A radiation or neutron detector wherein lateral side light detecting optical fibers prepared from clear optical fibers that are scraped on a lateral side to permit side incidence of fluorescence are used to detect the fluorescence from a...
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JP2010004038A |
To provide a neutron detection structure readily manufactured and utilizing a readily available SOI SRAM.The neutron detection structure composed of a silicon-on-insulator memory cell includes a conversion layer for converting incident n...
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JP4393316B2 |
To precisely and appropriately carry out diagnosis of lifetime about the changes in the detection sensitivity of a neutron detector, in a system for diagnosing the lifetime of the neutron detector, in order to optimize the updating of th...
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JP2009300293A |
To provide a logarithmic conversion circuit for ideally correcting count omission of a pulse system detector to the utmost and measuring radiation measurement at high accuracy.The logarithmic conversion circuit 3 logarithmically converti...
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JP4380994B2 |
To provide a solid state neutron sensor array for covering the whole range of a neutron flux generated from a nuclear reactor or the like. A detector comprises two or more sensor arrays having different sensitivities respectively. When d...
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JP4363377B2 |
To draw a control rod without reducing reactor power when the amount of neutron fluctuation increases, and to prevent drawing of the control rod in local power increase in the reactor core. This monitoring device and this controller comp...
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JP4360895B2 |
To effectively prevent mixing of noises in a signal transmission cable, in a neutron monitor for monitoring neutron flux of a reactor. The neutron monitor includes a neutron flux detector, pre-amplifier 101 and a signal processor, as wel...
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JP4362796B2 |
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JP4357125B2 |
Disclosed is a method of monitoring the neutron sensitivity of a neutron detector. Voltage having a predetermined potential difference is applied between an anode and a cathode without irradiating the neutron detector with neutrons to pe...
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JP4352149B2 |
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JP4344830B2 |
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JP4343711B2 |
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JP4334256B2 |
To provide a highly reliable radiation output monitor by solving problems in the digital signal processing of output signals from a radiation detector installed in a reactor. After output signals from an SRNM detector 1 is amplified by a...
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JP2009198469A |
To provide a nuclear material detecting device for accurately detecting nuclear material.This nuclear material detecting device 10 detects the nuclear material contained in an object A to be inspected. A neutron detection sensor 1 is arr...
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JP2009198365A |
To provide a detector having a light weight and a large size, and having a more inexpensive price in comparison with an NaI (T1) detector, capable of measuring fast neutrons as well as analyzing a -ray spectrum such as a conventional NaI...
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JP2009198439A |
To provide a neutron position measurement device 11 capable of improving a positional resolution.A plurality of neutron detection elements 12 for detecting an input neutron are juxtaposed. A neutron shield body 15 having a neutron shield...
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JP2009168496A |
To provide a high-speed computerized tomography method capable of observing and measuring three-dimensional information and its time change in a very short time, and a device therefor.A neutron beam 2 is irradiated to an object substance...
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JP4306135B2 |
To provide a neutron detector for fast and intermediate neutrons capable of detecting a neutron with lower energy even in a place including γ-ray or β-ray with high energy. A depletion layer 13a formed on an incident electrode 11a side...
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JP4296049B2 |
To provide a reactor start monitoring apparatus capable of accurately executing pulse counting processing in realtime by employing a simpler constitution, and to provide a reactor start monitoring method. The reactor start monitoring app...
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