Radiation detection apparatus, manufacturing method thereof, and radiation detection system

Abstract

A method of manufacturing a radiation detection apparatus is provided. The apparatus comprises a first scintillator layer, a second scintillator layer, and a sensor panel that detects light emitted by the first scintillator layer and the second scintillator layer. The method comprises preparing a sensor unit having the sensor panel and the first scintillator layer which includes a set of columnar crystals formed on the sensor panel, and a scintillator panel having a scintillator substrate and the second scintillator layer which includes a set of columnar crystals formed on the scintillator substrate, and fixing the scintillator panel to the sensor panel such that the first scintillator layer and the second scintillator layer face each other.

1 .- 12 . (canceled) 
     
     
         13 . A radiation detection apparatus comprising:
 a sensor panel that detects light;   a first scintillator layer that includes a set of columnar crystals arranged on said sensor panel, and converts radiation into light detectable by said sensor panel;   a scintillator substrate; and   a second scintillator layer that includes a set of columnar crystals arranged on said scintillator substrate, and converts radiation into light detectable by said sensor panel,   wherein a face of said first scintillator layer on an opposite side to a face contacting said sensor panel faces a face of said second scintillator layer on an opposite side to a face contacting said scintillator substrate using an adhesive layer formed between said first scintillator layer and said second scintillator layer.   
     
     
         14 . The apparatus according to  claim 13 , wherein the number of said columnar crystals per unit area of said first scintillator layer is greater than the number of said columnar crystal per unit area of said second scintillator layer. 
     
     
         15 . A radiation detection system comprising:
 the radiation detection apparatus according to  claim 13 ; and   a signal processing unit that processes a signal obtained by said radiation detection apparatus.   
     
     
         16 . A radiation detection apparatus comprising:
 a sensor panel that detects light;   a first scintillator layer that includes a set of columnar crystals arranged on said sensor panel, and converts radiation into light detectable by said sensor panel;   a scintillator substrate; and   a second scintillator layer that includes a set of columnar crystals arranged on said scintillator substrate, and converts radiation into light detectable by said sensor panel,   wherein a face of said first scintillator layer on an opposite side to a face contacting said sensor panel faces a face of said second scintillator layer on an opposite side to a face contacting said scintillator substrate using a sealing member adhered to a side face of said sensor panel and a side face of said scintillator substrate.   
     
     
         17 . The apparatus according to  claim 16 , wherein the number of said columnar crystals per unit area of said first scintillator layer is greater than the number of said columnar crystal per unit area of said second scintillator layer. 
     
     
         18 . A radiation detection system comprising:
 the radiation detection apparatus according to  claim 16 ; and   a signal processing unit that processes a signal obtained by said radiation detection apparatus.