Hamamatsu-photonics K.k.

Kyoto University

Toshiyuki Izawa

Keiji Abe

Seiichiro Mizuno

Koei Yamamoto

Kenji Makino

Tadayoshi Murakami

Takumi Ikenoue

Yuki Haruta

Masao Miyake

Tetsuji Hirato

A radiation detector includes a substrate including a first electrode portion, a radiation absorption layer disposed on one side with respect to the substrate and configured of a plurality of perovskite crystals, and a second electrode portion disposed on the one side with respect to the radiation absorption layer and being opposite to the first electrode portion with the radiation absorption layer interposed therebetween. Each of the plurality of perovskite crystals is formed to extend with a first direction in which the first electrode portion and the second electrode portion are opposite to each other as a longitudinal direction in a region between the first electrode portion and the second electrode portion in the radiation absorption layer.

Radiation detector and method for manufacturing radiation detector

A radiation detector includes a substrate having a plurality of charge collection electrodes, a radiation absorption layer disposed on one side with respect to the substrate and formed of a perovskite material, a voltage application electrode disposed on the one side with respect to the radiation absorption layer, a bias voltage being applied to the voltage application electrode so that a potential difference is generated between the voltage application electrode and each of the plurality of charge collection electrodes, and a protective member disposed on the one side with respect to the substrate and being in contact with at least portions opposite to each other in a side surface of the radiation absorption layer.

Radiation detector and method for manufacturing same

A radiation detector includes a substrate including a charge collection electrode, a radiation absorption layer disposed on one side with respect to the substrate and including perovskite structure particles and a binder resin; and a voltage application electrode disposed on the one side with respect to the radiation absorption layer, a bias voltage being applied to the voltage application electrode so that a potential difference is generated between the voltage application electrode and the charge collection electrode.

Radiation detector and manufacturing method for radiation detector

A device includes a gas cell (X) configured to form an introduction space (X) into which a target gas is introduced, an infrared light source (X) disposed at one end of the gas cell (X), a modulation mirror (X) disposed at one end of the gas cell (X) and configured to reflect or transmit light emitted from the infrared light source (X), a reflecting mirror (X) configured to reflect light transmitted through the modulation mirror (X), a saturated gas chamber (X), in which a predetermined comparison gas is hermetically enclosed, disposed on an optical path of light transmitted through the modulation mirror (X), a light receiving unit (X) disposed at the other end of the gas cell (X) and configured to receive light reflected by the modulation mirror (X) and light transmitted through the modulation mirror (X) and reflected by the reflecting mirror (X) through the saturated gas chamber (X), and a calculation circuit (X) configured to calculate the concentration of the target gas based on received light energy values of the light receiving unit (X) in each case in which light is reflected or transmitted by the modulation mirror (X).

Gas concentration calculation device and gas concentration measurement module

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Hamamatsu, Japan

Toshiyuki Izawa