Hitachi, Ltd.

Hitachi Medical Corporation

Ichiro Inamura

Noboru Baba

Mamoru Tsuzurahara

Yusaku Nakagawa

Akira Tanaka

Satoshi Shimada

Kazuji Yamada

Tadahiko Miyoshi

Motohisa Nishihara

Tomokatsu Oguro

Masateru Suwa

Hiromi Kagohara

Yoshio Ishida

Masao Sakai

Masatake Fukushima

Target for X-ray tube as well as method of manufacturing the same, and

A method for generating X-rays in an X-ray tube, comprises the steps of: rotating an X-ray target of a rotating anode, the X-ray target having a metal coated layer thereon; applying electron beams emitted from a cathode onto the metal coated layer of the X-ray target; and offsetting thermal deformation of the X-ray target due to the application of the electron beams by deformation of the X-ray target due to centrifugal force, thereby maintaining a position of the X-ray target in a direction of the application of the electron beams, at a room temperature of the X-ray target, thus generating the X-rays.

X-ray tube and method for generating X-rays in the X-ray tube

A magnetron comprises an anode cylinder, an even number of vanes radially extending from the inner wall of said anode cylinder and forming together with the anode cylinder a resonant circuit, and sealing members hermetically sealed to the opposite ends of said anode cylinder via seal flanges and respectively connected to a microwave power output section and to a cathode support stem. The anode cylinder and vanes are made of aluminum or an aluminum alloy, the sealing members are made from iron plates, the seal flanges are aluminum-clad iron plates, the sealing members are welded to the seal flanges, and the seal flanges are soldered by aluminum solder to the opposite ends of the anode cylinder.

Magnetron

At least one permanent magnet and a pole piece having a projection is contained in an evacuated envelope formed by an anode cylinder and yokes on the opposite ends thereof. The permanent magnet and the pole piece is clamped between one yoke and a holder secured to the inner wall of the anode cylinder. The holder is provided with an opening a little smaller than the outer diameter of the projection and the projection is force-fitted into the opening to project into an interaction space defined between anode vanes and the cathode electrode.

Magnetron magnet assembly

Growing community of inventors

Mobara, Japan

Ichiro Inamura