The Furukawa Electric Co., Ltd.

International Superconductivity Technology Center

Kabushiki Kaisha Toshiba

Matsushita Electric Industrial Co., Ltd.

Tohoku Electric Power

Toshiyuki Tamura

Hisao Yamauchi

Seiji Adachi

Xiao-Jing Wu

Takeshi Takahara

Akihisa Saito

Eiji Oyaizu

Makoto Itoh

Koichi Nittoh

Changqin Jin

Tadashi Tatsuki

A color radiography system comprises a color light emission sheet having a phosphor layer that contains a phosphor emitting in a plurality of colors to radiation and emits light under irradiation of radiation transmitted through a subject to be inspected, and a color film or a color camera that detects the light emissions of the plurality of colors into the respective colors. In the phosphor layer, a phosphor is used that has a primary emission component corresponding to one emission color in a visible light region and at least one secondary emission component, the secondary emission component having an emission color different from that of the primary emission component and a ratio of light emission to radiation of the same intensity being different from that of the primary emission component. According to the present color radiography system, image information of a plurality of colors having different sensitivity characteristics can be obtained. The image information of an appropriate density can be obtained under various conditions.

Method and apparatus for color radiography, and color light emission sheet therefor

The present invention is an oxide superconductor containing alkaline earth metal M (where M is at least one element of Ba, Sr, and Ca) and having a crystalline structure in which a portion based on two rock-salt structures including the alkaline earth metal M, oxygen, and chlorine, and a 2n-1 piece of infinite layer structure portion are alternately layered on each other, said 2n-1 piece of infinite layer structure portion having an atom layer including copper atoms and oxygen atoms in a ratio of 1 to 2 and of an atom layer including only M atoms layered on each other (where n is an integer of 1 or more and where copper atoms and oxygen atom are contained in a ratio of 1 to 2 if n is 1).

Rock-salt/infinite layer chlorine-containing oxide superconductor and

The present invention provides an oxide superconductor which is expressed in the composition formula

Oxide superconductor and method for manufacturing the same

Growing community of inventors

Kanagawa-ken, Japan

Toshiyuki Tamura