High Energy Accelerator Research Organization

Sumitomo Heavy Industries, Ltd.

Takakazu Shintomi

Takayuki Tomaru

Tomiyoshi Haruyama

Toshikazu Suzuki

Tomohiro Koyama

Rui Li

A stationary point is set on a cold end of a cryocooler. An article is mounted on the stationary point to be cooled via the stationary point. In this case, the article can be cooled up to an extremely low temperature with isolation of vibration to the article.

Method for cooling an article using a cryocooler and cryocooler

A cryogenic refrigerator includes a first refrigerant tube and a second refrigerant tube each comprising two tubes that are arranged on a cooling stage substantially parallel to each other and communicate with each other through a gas passage formed in the cooling stage. Phase differences are provided to oscillating gas pressures in the first and second refrigerant tubes, to cancel vibration of the cooling stage. Thus, the cryogenic refrigerator can be provided which can effectively reduce the vibration of the cooling stage caused by the oscillating gas pressure and can reduce the size thereof.

Cryogenic refrigerator

Growing community of inventors

Ibaraki, Japan

Takakazu Shintomi