Hitachi High-Tech Corporation

Hitachi Automotive Systems, Ltd.

Eri Takahashi

Shin Imamura

Makoto Suzuki

Masayuki Saruwatari

Toshiaki Kusunoki

Yoshifumi Sekiguchi

Kazuhiro Oryoji

Masato Kaneeda

Takayuki Kanda

Shunsuke Mizutani

Naoki Yoneya

Provided are a scintillator and the like capable of improving emission intensity. A scintillator (S) comprises a sapphire substrate (), a GaN layer () that is provided on the incident side to the sapphire substrate () and includes GaN, a quantum well structure () provided on the incident side to the GaN layer (), and a conductive layer () provided on the incident side to the quantum well structure (), wherein a plurality of emitting layers () including InGaN and a plurality of barrier layers () including GaN are alternatively stacked in the quantum well structure (), and an oxygen-containing layer () including oxygen is provided between the quantum well structure () and the conductive layer ().

Scintillator, measuring device, mass spectrometer, and electron microscope

The purpose of the present invention is to provide a scintillator for a charged particle beam device and a charged particle beam device which achieve both an increase in emission intensity and a reduction in afterglow intensity. This scintillator for a charged particle beam device is characterized by comprising a substrate (), a buffer layer () formed on a surface of the substrate (), a stack () of a light emitting layer () and a barrier layer () formed on a surface of the buffer layer (), and a conductive layer () formed on a surface of the stack () and by being configured such that the light emitting layer () contains InGaN, the barrier layer () contains GaN, and the ratio b/a of the thickness b of the barrier layer () to the thickness a of the light emitting layer () is 11 to 25.

Scintillator for charged particle beam apparatus and charged particle beam apparatus

An object of the present invention is to provide an exhaust gas purification system which exhibits high exhaust gas purification performance. The present invention provides an exhaust gas purification system including: a carrier containing aluminum oxide; an exhaust gas purification device including a catalyst provided on the carrier and containing gallium, and connected to an internal combustion engine; and a system connected to the exhaust gas purification device for increasing an oxygen concentration. The system for increasing an oxygen concentration provides an oxygen concentration higher than that of a post combusted gas of the internal combustion engine.

Exhaust gas purification system

Growing community of inventors

Tokyo, Japan

Eri Takahashi