Patent ID: 8415662
Filing Date: 2013-04-09
Classification: G01T,H01L

Abstract:
1. The radiation detector comprising: a charge generating layer which is made of amorphous selenium and absorbs incident radiation and generates charges; a common electrode provided on the charge generating layer on the side on which the radiation is made incident; a signal readout substrate on which a plurality of pixel electrodes for collecting charges generated by the charge generating layer are arrayed, a first amorphous selenium layer provided between the charge generating layer and the signal readout substrate and containing arsenic and lithium fluoride; a second amorphous selenium layer provided between the first amorphous selenium layer and the signal readout substrate and containing arsenic; and a third amorphous selenium layer provided between the first amorphous selenium layer and the charge generating layer and containing arsenic, wherein the second amorphous selenium layer and the third amorphous selenium layer contain not less than 10 atomic percent and not more than 40 atomic percent of arsenic.