Hitachi, Ltd.

Ihi Corporation

National Institute for Materials Science

Daido Steel Co., Ltd.

Hitachi High-tech Corporation

Kota Sasaki

Satoshi Takahashi

Mutsumi Suzuki

Akihiro Sato

Yuichiro Ueno

Jun Maeda

Shigeki Ueta

Hiroki Yoshizawa

Kouichi Okada

Hiroyuki Takabayashi

Tetsuyoshi Ono

Hideyuki Murakami

Yuta Tanaka

Hirohisa Mizota

Isao Nakanowatari

Masanori Kitaoka

Akira Tateno

Yuusuke Kourai

Yoshito Yasui

Satoru Yusa

Koshiro Yamane

Ei Kimura

Hiromichi Murakami

Masato Ishida

Azusa Yamada

An object of the present invention is to increase sensitivity and position resolution of measurement of an arrival position of a charged particle beam irradiated during treatment. A beam monitoring system includes: a gamma ray detector that detects gamma rays generated by interaction between a charged particle beam and an irradiation target; a shield that is disposed between the gamma ray detector and an irradiation axis of the beam and has a plurality of slits; and a calculation unit that analyzes a detection result of the gamma ray detector and reconfigures a count distribution of the detected gamma rays into a distribution of the beam irradiation axis based on a geometric arrangement of the shield, the detector, and the irradiation axis of the beam. The calculation unit obtains the arrival position of the particle beam from the reconfigured distribution.

Beam monitoring system, particle therapy system, and beam monitoring method

Provided is a liquid droplet generation method capable of generating liquid droplets having a diameter of 100 μm or more. The liquid droplet generation method for generating liquid droplets from a liquid layerby using a plurality of transducers, the method including irradiating the liquid layerwith a plurality of ultrasonic waves from the plurality of transducersto scatter primary liquid dropletsA andB from the liquid layer, and causing the primary liquid dropletsA andB being scattered to aggregate and grow into a secondary liquid dropletA.

Liquid droplet generation method

A thermal barrier-coated Ni alloy component includes: a substrate made of a Ni alloy containing Al; an intermediate layer formed on a surface of the substrate; and a thermal barrier layer made of a ceramic and formed on a surface of the intermediate layer. The intermediate layer includes a &#x3b3;' layer, which is formed from a &#x3b3;&#x2032;-NiAl phase on the surface on the thermal barrier layer side, and contains Pt.

Thermal barrier-coated Ni alloy component and manufacturing method thereof

The present invention provides a maraging steel containing: 0.10&#x2266;C&#x2266;0.30 mass %, 6.0&#x2266;Ni&#x2266;9.4 mass %, 11.0&#x2266;Co&#x2266;20.0 mass %, 1.0&#x2266;Mo&#x2266;6.0 mass %, 2.0&#x2266;Cr&#x2266;6.0 mass %, 0.5&#x2266;Al&#x2266;1.3 mass %, and Ti&#x2266;0.1 mass %, with the balance being Fe and unavoidable impurities, and satisfying 1.00&#x2266;A&#x2266;1.08, in which A is 0.95+0.35&#xd7;[C]&#x2212;0.0092&#xd7;[Ni]+0.011&#xd7;[Co]&#x2212;0.02&#xd7;[Cr]&#x2212;0.001&#xd7;[Mo], where [C] indicates a content (mass %) of C, [Ni] indicates a content (mass %) of Ni, [Co] indicates a content (mass %) of Co, [Cr] indicates a content (mass %) of Cr, and [Mo] indicates a content (mass %) of Mo, respectively. The maraging steel has a tensile strength of 2,300 MPa or more and is also excellent in the toughness/ductility and fatigue characteristics.

Aircraft engine shaft comprising a maraging steel having a tensile strength of 2300MPa or more

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Tokyo, Japan

Kota Sasaki