Kabushiki Kaisha Toshiba

Tokyo Shibaura Denki Kabushiki Kaisha

Tokyo Shibaura Electric Co., Ltd.

Japan Atomic Energy Research Institute

Chikara Konagai

Koichi Nittoh

Naruhiko Mukai

Yuji Sano

Shimpey Shirayama

Nobutada Aoki

Arata Ito

Muneyoshi Kikunaga

Kouki Okazaki

Takeshi Takahara

Yukihiro Fukuta

Takashi Noji

Hitoshi Sakai

Hiroshi Takeuchi

Katsumi Hosaka

Hironobu Kimura

Michitaka Terasawa

Iwao Miura

Tohru Matoba

Toyoaki Kimura

Masayo Kato

A nondestructive identification device includes: a radiation sourceirradiating an x-rayto a standard samplemade of a known material and a sample; a sensordetecting a radiation ray having transmitted the standard sampleand the sample; a signal processing deviceconverting a signal of the sensorinto an image; an image processing devicewhich performs adjustment on an entire second image to make a luminance value of a part of the standard samplein the obtained image or a relation between the luminance value and a thickness of the standard samplein a first image where the energy of the radiation sourceis first energy be the same as that in the second image where the energy of the radiation sourceis second energy, and which performs a computation processing to take a difference or a ratio between the adjusted second image and the first image; and a display devicedisplaying an image.

Nondestructive identification method and nondestructive identification device

An object of the present invention is to provide an X-ray image tube which enables acquisition of an image of a proper density by increasing contrast without increasing an irradiation dose of X-rays. The X-rays absorbed or scattered through a subject emit light on an input surface formed in an input window, and the light is further converted into electrons on a photoelectric surface which converts the light into the electrons, accelerated and focused by a focusing electrode, and then guided to an anode side. The electrons guided to the anode side are made visible by a fluorescent substance, and an image of a color is projected on a glass plate with a luminance and a color based on a distribution of the incident X-rays in accordance with the dose of the X-rays.

X-ray image tube, X-ray image tube device and X-ray device

A radiation discriminative measurement is performed by using a radiation discriminative measuring apparatus which comprises a radiation source for radiating radiations, first, second and third scintillators disposed in a region which is irradiated with the radiations radiated from the radiation source, and an image pickup means to deal with the light beams emitted from the first, second and third scintillators and the discrimination measurement includes the steps of arranging the first, second and third scintillators in a region which is irradiated with the radiations radiated from the radiation source, causing the first scintillator to respond to type A, type B and type C radiations radiated from the radiation source and to emit alight beam in a first wavelength region, causing the second scintillator to respond to type B and type C radiations which pass through the first scintillator so as to to emit a light beam in a second wavelength region, and causing the third scintillator to respond to a type C radiation which passes through the third scintillator so as to emit a light beam in a third wavelength region which is different from said first and second wavelength regions. The data of the scintillators are corrected in accordance with the wavelengths and the measurement of radiations according to the type thereof is discriminated and simultaneously measured.

Radiation discriminative measuring apparatus and radiation discriminative measuring method

An underwater laser processing method is carried out by irradiating, through a laser beam irradiation apparatus, a laser beam having a high output, a short pulse and a visible wavelength to a surface of a structure immersed in a water to improve residual stress of a material of the surface of the structure and remove a crack or a CRUD thereof. The laser beam irradiation apparatus comprises a pulse laser device suspended into a water in which a metal material is accommodated from an upper side thereof for irradiating a laser beam having a visible wavelength to a processing position, a beam strength adjusting device for adjusting an output per 1 pulse of a laser beam generated by the pulse laser device and a mechanism for adjusting a spot diameter and a multiplexing ratio of an irradiated beam.

Underwater laser processing method and apparatus

A neutral particle analyzer has a stripping cell for converting a neutral beam into a charged particle beam, a momentum analyzer for deflecting paths of respective charged particles of the charged particle beam emerging from the stripping cell in correspondence with momenta thereof, and a semiconductor energy analyzer comprising a plurality of semiconductor detectors which are arranged in the paths of deflected charged particle beams emerging from the momentum analyzer. The semiconductor energy analyzer generates pulse signals having pulse heights corresponding to masses of and kinetic energies of the deflected charged particles of the deflected charged particle beams.

Neutral particle analyzer

A compact single- or multi-channel radiation detector capable of sending forth a large and stable output signal by being operated in a proportional region which comprises a single or a plurality of electrode assemblies each prepared by inserting between a pair of mutually facing parallel high voltage electrodes an electric charge-collecting electrode having a plurality of metal wires spatially arranged in a plane parallel with said paired high voltage electrodes, and wherein the single or plural electrode assemblies are received in a case provided with a radiation inlet section and filled with a gaseous element mainly consisting of a rare gas such as argon or xenon.

Radiation detector adapted for use with a scanner

Growing community of inventors

Yokohama, Japan

Chikara Konagai