Canon Kabushiki Kaisha

Ryoko Ueyama

Toru Den

Nobuhiro Yasui

Yoshihiro Ohashi

Teigo Sakakibara

Yoshinori Kotani

Tamaki Kobayashi

Fumio Yamauchi

Kengo Kanazaki

Yoshinori Shibutani

Tomoyuki Oike

A silica aggregate includes primary silica particles aggregated, the primary silica particles having an average particle size of 1 nm or more and less than 10 nm, the primary silica particles being crosslinked to each other by a bond containing a siloxane bond.

Silica aggregate, adsorbent, adsorption column, cleaning system, method for treating liquid, and method for producing silica aggregate

A DNA complex includes a carrier and DNA immobilized on the carrier. 80% or more by mass of the DNA is single-stranded DNA, the DNA has an average molecular weight of 500,000 or less, and the DNA content is more than 15% by mass and 50% or less by mass of the DNA complex. The carrier contains an inorganic material. The DNA complex has an average particle size of 10 &#x3bc;m or more.

DNA complex, adsorbent, adsorption column, purification system, liquid treatment method, and method for producing DNA complex

Provided is a scintillator plate including a crystalline body formed of a compound having a crystal structure of a CsCuIcrystal and a substrate, in which an orientation of the crystalline body is an a-axis group orientation with respect to a direction perpendicular to the substrate.

Scintillator plate and radiation detector

A scintillator crystal includes a plurality of first crystal phases and a second crystal phase located around the plurality of the first crystal phases, in which each of the plurality of the first crystal phases contains a sulfate, the second crystal phase contains an alkali halide that emits light by irradiation with radiation, and the refractive index of each of the first crystal phases is lower than the refractive index of the second crystal phase.

Scintillator crystal and radiation detector

Improvement in luminescence intensity is demanded from a scintillator material. The present invention provides a new scintillator material by adding a specific element selected from thallium and indium to a material having a basic composition represented by an alkali element:copper:a halogen element=3:2:5.

Scintillator material and radiation detector using same

In a scintillator used for radiation detection, such as an X-ray CT scanner, a scintillation crystal body having a unidirectional phase separation structure is provided which has a light guide function for crosstalk prevention without using partitions. The phase separation structure includes a first crystal phase and a second crystal phase having a refractive index larger than that of the first crystal phase and which have a first principal surface and a second principal surface, these principal surfaces being not located on the same plane, the first principal surface and the second principal surface have portions to which the second crystal phase is exposed, and a portion of the second crystal phase exposed to the first principal surface and a portion of the second crystal phase exposed to the second principal surface are connected to each other.

Scintillator crystal body, method for manufacturing the same, and radiation detector

There is provided a compound represented by the general formula CsCu[ICl], wherein x is 0.71 or more and 0.79 or less. Also, there is provided a method for producing a compound, comprising mixing cesium iodide, cesium chloride, and copper chloride together in such a manner that the molar ratio of cesium to copper to iodine to chlorine is 3:2:5(1-x):5x (wherein 0.71&#x2266;x&#x2266;0.79), melting the resulting mixture, and solidifying the resulting molten material to give a compound.

Compound, scintillator, and radiation detector

Provided is a scintillator used for detecting radiation in an X-ray CT scanner or the like, the scintillator having a unidirectional phase separation structure having an optical waveguide function, which eliminates the need of formation of partition walls for preventing crosstalks. The scintillator has the phase separation structure including: a first crystal phase including multiple columnar crystals having unidirectionality; and a second crystal phase filling space on the side of the first crystal phase. The second crystal phase includes a material represented by CsCu[XY], where X and Y are elements which are different from each other and which are selected from the group consisting of I, Br, and Cl, and 0&#x2266;a&#x2266;1 is satisfied.

Scintillator having phase separation structure and radiation detector using the same

A radiation detecting device is manufactured by a method that includes forming a scintillator layer on a substrate carrying a plurality of photodetectors and a plurality of convex patterns each including a plurality of convexities, the plurality of convex patterns coinciding with the respective photodetectors, the scintillator layer being formed in such a manner as to extend over the plurality of convex patterns; and forming a crack in a portion of the scintillator layer that coincides, in a stacking direction, with a gap between adjacent ones of the convex patterns by cooling the substrate carrying the scintillator layer. The plurality of convex patterns satisfy specific conditions.

Growing community of inventors

Kawasaki, Japan

Ryoko Ueyama