Abstract:
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.
Abstract:
Provided is a scintillator plate including a crystalline body formed of a compound having a crystal structure of a Cs3Cu2I5 crystal 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.
Abstract translation:提供了一种闪烁体板,其包括由具有Cs 3 Cu 2 I 5晶体的晶体结构的化合物和基板形成的晶体,其中晶体的取向相对于垂直于基板的方向为a轴组取向。
Abstract:
Provided is a radiation detecting element, including: a semiconductor layer including a tin oxide crystal; and a detecting unit configured to detect, as an electrical signal, charges generated in the semiconductor layer when the semiconductor layer is irradiated with radiation, in which a resistivity of the semiconductor layer is 107 Ω·cm or more.
Abstract:
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.
Abstract:
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 Cs3Cu2[XaY1-a]5, 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≦a≦1 is satisfied.
Abstract translation:提供了用于检测X射线CT扫描仪等中的辐射的闪烁体,该闪烁体具有具有光波导功能的单向相分离结构,其消除了形成用于防止串扰的分隔壁的需要。 闪烁体具有相分离结构,包括:包含具有单向的多个柱状晶体的第一晶相; 以及在第一结晶相侧的第二晶相填充空间。 第二结晶相包括由Cs 3 Cu 2 [X y Y 1-a] 5表示的材料,其中X和Y是彼此不同的并且选自I,Br和Cl的元素,并且0 @ a @ 1满足。
Abstract:
A specimen information acquisition system is provided with a first grating which divides divergent X-rays from an X-ray source to form a plurality of primary X-ray beams, and a second grating which blocks at least a part of each of the primary X-ray beams to form a plurality of secondary X-ray beams. The specimen information acquisition system is further provided with an X-ray detector which detects the secondary X-ray beams and a calculator which calculates information of a specimen arranged between the X-ray source and the X-ray detector. The primary X-ray beams do not overlap each other on each of X-ray transmitting portions of the second grating. The edges of the respective primary X-ray beams enter a plurality of X-ray blocking portions of the second grating.
Abstract:
Provided is a scintillator plate, including a plurality of scintillator crystals each including a plurality of first phases and a second phase present on a periphery of each of the plurality of first phases, in which the each of the plurality of first phases and the second phase are different from each other in refractive index with respect to scintillation light, the adjacent scintillator crystals are joined to each other through intermediation of an adhesive layer, and at least a part of an extension line of a center axis of the each of the plurality of first phases of the adjacent scintillator crystals passes through the adhesive layer.
Abstract:
A radiation phase change detection method includes: arranging a two-dimensional optical image pickup element, which includes a scintillator, so that, when a period of a self-image generated through a phase grating is defined as D1, and a pixel pitch of the two-dimensional optical image pickup element is defined as D2=kD1, k falls in a range of 1/2
Abstract:
A method is provided for manufacturing a scintillator panel including a substrate and a scintillator layer containing a plurality of crystals formed by depositing a scintillator material on a deposition surface of the substrate. The method includes depositing the scintillator material on the deposition surface of the substrate such that the scintillator material incidents on the deposition surface obliquely with respect to the normal to the deposition surface, and varying the angle between a reference direction on the deposition surface and a projected incident direction that is obtained by projecting the direction of the scintillator material incident onto the deposition surface. In the vapor deposition, the amount of the scintillator material deposited on the deposition surface changes according to the angle between the projected incident direction and the reference direction.
Abstract:
A radiation detection element has a detection layer 52 containing metal halide and a pair of electrodes 51 and 53 disposed on the detection layer 52 containg metal halide. At least one of the pair of electrodes has a surface 56 containing graphite and the surface 56 containing graphite and the detection layer 52 are in contact with each other.