Riken Corporation

Other

Hirohiko Shimizu

Shinya Morita

Hitoshi Ohmori

Yutaka Yamagata

Sei Moriyasu

Takayuki Oku

Toshikazu Ebisuzaki

Yoshiyuki Takizawa

Chiko Otani

Yuji Kawabata

Yoshiyuki Takahashi

The light of a broad energy band can be observed by reflecting the light of the broad energy band, for example, the light from the visible light region to the x-ray region at a high reflectance respectively, by a composite telescope including a normal incidence optical system and an oblique incidence optical system. A broadband telescope comprise an oblique incidence optical system unit in which the light is obliquely incident on a surface part for reflecting the incident light, a normal incidence optical system unit in which the light is substantially vertically incident on a surface part for reflecting the incident light, and an analyzer for spectrum analysis of the light reflected by the surface part of the obliquely incidence optical system unit and the light reflected by the surface part of the normal incidence optical system unit.

Broadband telescope

An apparatus for controlling a neutron beam includes a plurality of columnar prismsthat are made of a material having a refractive index of less than 1 for a neutron beam, and are arranged so as to be multi-layered. The columnar prismseach have an approximately right-triangle-shaped section, and are three-dimensionally multi-layered such that respective surfacesof the columnar prisms are in parallel to one another. Stick-shaped membersare made of the above material, the stick-shaped membersare set in a plurality of grooves formed on a jigthat have the same shape, and upper surfaces of the grooves are flattened at the same time.

Apparatus for controlling neutron beam and method for manufacturing the same

A neutron beam controlling apparatus includes a plurality of multilayered plate members, each having on one or both of its surfaces, one or more minute protruding portions. Each of the protruding portions is a long and narrow protrusion extending in an area-wise direction and having both an inclined surface that is inclined against the beam axis of neutron beam and serves as an incident plane or an outgoing plane for the neutron beam and a surface approximately normal to the plate member.

Neutron beam controlling apparatus, and neutron energy measuring apparatus

A rotating table that holds a flat neutron lens component and rotates about an axis of rotation Z, a circular-disk type of metal-bonded grinding wheel with tapering surface on the outer periphery thereof, a grinding wheel driving device drives and rotates the grinding wheel around the axis A thereof, an electrode with a surface close to the single tapering surface or the plurality of tapering surfaces of the grinding wheel, a power source that applies an electrolytic voltage between the grinding wheel and the electrode, and a grinding fluid feeder that supplies a conducting grinding fluid between the grinding wheel and the electrode are provided. The angle of the tapering surface of the grinding wheel is formed to be more acute than the angle of a V-shaped groove to be formed on the surface of the neutron lens component, the axis of the grinding wheel is positioned at an oblique angle to the axis of rotation of the neutron lens component by the grinding wheel driving device , and the angle of obliqueness &thgr; can be slightly varied at that location. Thus, fine ring-shaped protrusions can be formed accurately with an excellent surface finish and a low processing force, on the surface of a neutron lens component made of graphite etc.

Apparatus and method for processing the components of a neutron lens

Growing community of inventors

Wako, Japan

Hirohiko Shimizu