| Document |
Document Title |
|
JPH11183627A |
To substantially eliminate deterioration of a saturation characteristic of gamma rays. A limitation is provided whereby the sum of areas of a plurality of holes 9 formed at a signal electrode 2 is set to be not more than 5% of the surfac...
|
|
JP2909261B2 |
|
|
JP2909260B2 |
|
|
JPH11153690A |
To omit the operation of connection switching test tools and a neutron detector in neutron detector tests using test tools. To output cables 2-1 to 2-n of neutron detectors 1-1 to 1-n, input circuits 40-1 to 40-n of APRM panel 4 and a te...
|
|
JP2900403B2 |
PURPOSE:To accurately measure the fluence of an atomic oxygen beam on a real time by measuring the change in the weight and thickness of a body to be measured from the chemical reaction with the atomic oxygen beam. CONSTITUTION:The plate...
|
|
JP2882807B2 |
PURPOSE:To decrease statistic errors by equipping a neutron detecting part with a neutron source, a moderator, a neutron detector and a sampler tank and also by using a He<3> counter as the neutron detector. CONSTITUTION:One of an Am-Be ...
|
|
JP2877609B2 |
A start-up range neutron monitor system for monitoring neutrons generated from a neutron source comprises a neutron detector disposed in a non-earthed state and adapted to detect neutrons generated from the neutron source, a coaxial cabl...
|
|
JP2873774B2 |
PURPOSE:To provide a radiation measurement device with high measuring accuracy and without being affected by the electromagnetic noise generated from a power converter of a motor drive device controlling control rods in a reactor pressur...
|
|
JP2871523B2 |
PURPOSE: To obtain a radiation detection apparatus by which the detection result for neutrons and the detection result for γ-rays or the like are obtained by one detector only. CONSTITUTION: A converter layer 12 which is composed of<6> ...
|
|
JPH1164248A |
To enable the identification of contents in a container, bag, apparatus, etc., by superimposing a neutron radioscopic image on an x-ray radioscopic image and displaying it. An object to be inspected (container, bag, etc.), is mounted on ...
|
|
JPH1164531A |
To evaluate the neutron sensitivity in the early stage by manufacturing a cathode and an anode, plating the surface of the cathode with uranium, assembling a sensor part by use of the cathode and the anode, and transmitting the sensor pa...
|
|
JPH1164528A |
To ascertain the amount of fissile materials contained in every waste by a non-destructive measurement method prior to disposing the wastes to reduce difference in sensitivity dependent on positions, and to make it possible to measure an...
|
|
JPH1151799A |
To obtain a detector by which a leaky place in a building is detected nondestructively, quickly and surely by a method wherein a neutron beam source in a trace amount at the legal-regulation-exemption amount or lower of an airtightly sea...
|
|
JP2861796B2 |
|
|
JPH1138147A |
To easily measure the progresses with time of a neutron flux and irradiation temperature off-line, by providing a detecting mechanism, which is composed of a wire paying-off machine, etc., and in which a wire detecting medium passes thro...
|
|
JPH1123799A |
To provide a method for obtaining a reproduced neutron image with excellent picture quality in a neutron radiography using an accumulable phos phor sheet as a recording and reproducing medium. (1) A recording layer that is provided to an...
|
|
JPH10325877A |
To provide an element for detecting semiconductor neutron rays that has stable sensitivity over a long time and has is highly reliable. An amorphous silicon layer 2 is formed on a single crystal silicon plate 1, an upper aluminum electro...
|
|
JP2818730B2 |
PURPOSE: To sufficiently heighten the neutron detecting efficiency by radiating neutron beam containing image information to laminated stimulable phosphor sheets, carrying out reading process for the stimulable phoshor sheets, carrying o...
|
|
JPH10282019A |
To provide a CT apparatus which enables penetrative examination of even an object comprising heavy metal or a large construction and clear detection of difference or the like of material inside. An object S to be measured is irradiated w...
|
|
JP2809933B2 |
PURPOSE:To obtain a neutron flux measurement device capable of measuring in synchronizim with detector position. CONSTITUTION:When a detector is moved with a drive device 5 at a determined velocity in a core, a measuring region is set in...
|
|
JP2798270B2 |
|
|
JP2788322B2 |
PURPOSE:To obtain highly accurate accumulation value of SRNM neutron irradiation, to monitor reactor core reactivity in a proper manner and to judge replacement timing of SRNM appropriately by providing a calculational means of the SRNM ...
|
|
JPH10508102A |
PCT No. PCT/FR95/01373 Sec. 371 Date Apr. 15, 1997 Sec. 102(e) Date Apr. 15, 1997 PCT Filed Oct. 18, 1995 PCT Pub. No. WO96/12974 PCT Pub. Date May 2, 1996A counting enclosure (24) for neutron detection has an outer wall and an inner spa...
|
|
JP2768793B2 |
PURPOSE:To enable very accurate measurement of a minute current such as a detector current by providing an operational amplifier for converting a current signal of a neutron detector into a voltage signal, which is provided in an input s...
|
|
JP2748323B2 |
The apparatus consists of a vessel and a source (29) which emits neutrons for the bombardment of the fissile material. A system (28, 30) is provided to introduce the source (29) inside the vessel and to withdraw it from the vessel. A neu...
|
|
JPH10104360A |
To provide an in-core measuring device capable of calibrating a gamma ray temperature meter surely, efficiently and accurately. When the sensitivity of a gamma ray thermometer 83 is self- calibrated with a self-containing heater in the g...
|
|
JP2742214B2 |
|
|
JPH1090425A |
To measure the whole neutron flux level in a nuclear power plant and the like by one detector by providing a plurality of division electrodes composed of neutron sensitive material, and changing the number of the use electrodes to change...
|
|
JP2735937B2 |
|
|
JPH10503588A |
A dosimetry method, dosimeter and system characterized by the steps of storing information in a three dimensional optical memory element, then exposing the optical memory element to neutron or other high LET radiation to alter the inform...
|
|
JPH1026668A |
To obtain a calibration device by which the offset and the gain of a neutron-flux amplifier are calibrated automatically. A switch 32 is changed over to the operation side, a switch 34 is changed over to the calibration side, an offset c...
|
|
JP2560832Y2 |
|
|
JP2697794B2 |
A system for detecting the presence of explosives contained in an object under observation, including a cavity structure for receiving the object and a radiation source for producing thermal neutrons directed to the object under observat...
|
|
JPH09329666A |
To prevent slight drop of the sensitivity of a neutron detector to neutrons in the initial stage by applying a neutron sensitive material to electrodes after a neutron absorbing material having a specific neutron absorption cross section...
|
|
JPH09318760A |
To enhance the sensitivity simultaneously capable of detecting neutron in each neutron energy range. The neutron detector 8 comprises an outside container 10 formed of a thermal neutron shield member, a thermal neutron and fast neutron d...
|
|
JPH09318759A |
To make it possible to obtain total equivalent dose by measuring equivalent dose at each neutron energy range and adding them. A detector 10 has a fast neutron detector 18, an intermediate speed neutron detector 16 and thermal neutron de...
|
|
JP2671952B2 |
Radiation made to enter an entire envelope formed of lead or copper, which is included in a radiation detector, results in generating neutrons. Then, the neutrons enter an NaI (Tl) crystal, a CsI crystal, a BiGeO crystal, a BaF2 crystal,...
|
|
JPH09281246A |
To improve the positional resolution in the Y direction and to obtain the neutron detector of simple structure capable of being esily fabricated. A high-voltage electrode 1 and an internal partition plate 3 as a cathode are alternately a...
|
|
JP2671092B2 |
PURPOSE: To grasp the activity situation of magma by a method wherein a thermal-neutron detection sensor is surrounded by a Cd cylindrical shield which is provided with a window and by a neutron moderator, a cylinder including the modera...
|
|
JPH09264984A |
To make it possible to measure output from history or void distribution or water level when neutral or γ-ray is arrived out of a core from the core by providing the subject apparatus with a unit connected to an amplifier and to a signal...
|
|
JPH09264987A |
To make it possible to externally draw many cables in a reactor container (PCV) via the PCV by installing a flange having a single or a plurality of connectors having sealing functions to connect a plurality of signal core wires to the n...
|
|
JPH09243754A |
To provide an atomic reactor starting area monitoring device improved in reliability and working efficiency of maintenance inspection by satisfying the arrangement conditions related to the reactor output monitoring function of a reactor...
|
|
JPH09243784A |
To protect a neutron detector and prevent the deterioration of sensitivity and the reduction in output of a device by supplying, when the input from the other measuring device is above the reactor output measuring range of its own device...
|
|
JPH09236670A |
To construct simply an equipment structure for executing installation of a radiation source easily and quickly by positioning the radiation source at a measuring position set in the vicinity of a sensor for neutron detection, on the occa...
|
|
JPH09236669A |
To enable measurement of radiation in a very narrow place and also to enable simultaneous detection of a gamma-ray and a neutron-ray by a single detecting part by a method wherein a radiation-sensitive layer containing a thin stratified ...
|
|
JPH09218270A |
To accommodate demand for an increase in size and resistance against radioactive rays with a simple structure by providing a wire applied with a nuclear transformation substance in a container with gas which emits light under existence o...
|
|
JP2632712B2 |
The apparatus comprises a first assembly (E1), consisting of a neutron radiation source (6), a block of hydrogenated material (4) with a recess to receive the source (6) and a first neutron detector (10); and a second assembly (E2), cons...
|
|
JPH09189795A |
To avoid a wrong reactor scram by providing the logic for switching to an intermediate area if both conditions of the neutron flux obtained by the Cambel method and the count rate are valid. The logic for switching 5 from a neutron sourc...
|
|
JP2625592B2 |
PURPOSE: To especially detect and measure the neutron in applied radiation by irradiating the colored viscous particles settled in the calcium carbonate solution of a transparent container with neutrons and calculating the number of the ...
|
|
JP2621354B2 |
PURPOSE:To improve accuracy in measurement of beam quantity by operating the quantity of a neutral particle beam based on the beam current and the vacuum degree which are measured with a beam-current measuring device and a vacuum gage an...
|
