Patent ID: 9105777
Filing Date: 2015-08-11
Classification: G01T,H01L,Y02E

Abstract:
1. A semiconductor Gamma Ray detector comprising: a cylindrical semiconductor body of crystal construction having two ends at one end a center hole is formed that extends from said one end of said cylindrical semiconductor body and stops just prior to the other end of said cylindrical semiconductor body; a one radial cut construction is formed in said cylindrical semiconductor body and extends from the outer cylinder surface of said cylindrical semiconductor body and stops just prior to said center hole of said cylindrical semiconductor body, electrically separates said cylindrical semiconductor body to be two chambers; a first electrode formed on the inner surface of said center hole of said cylindrical semiconductor body; a second electrode formed on the whole out surface of said cylindrical semiconductor body that is composed of the entire surface of said the other end of said cylindrical semiconductor body, the entire surface of said the outer cylinder surface of said semiconductor body, the entire surface of said radial cut construction, and the surface of the most outer area of said one end of said semiconductor body except the small area that lies outside the opening of said center hole on said one end of said cylindrical semiconductor body; and a passivation layer formed on said the small area that lies outside the opening of said center hole on said one end of said cylindrical semiconductor body that seals both the openings of said first electrode and second electrode; wherein said cylindrical semiconductor body forms two axial layers of a coaxial nature construction series connected together that are electrically depleted independently under reversed bias.