Direct conversion x-ray/gamma-ray photocathode

Details Direct conversion x-ray/gamma-ray photocathode Direct conversion x-ray/gamma-ray photocathode

G - Physics

21

K

G21K 4/00 (2006.01) G01T 1/00 (2006.01) G01T 1/28 (2006.01) H01J 29/38 (2006.01) H01J 31/50 (2006.01)

Patent

CA 2193919

A direct conversion broad band x-ray/gamma-ray photocathode having at least one layer functioning as an efficient x-ray or gamma-ray absorber and another layer functioning as an efficient transmission secondary electron emitter for providing both high detection efficiency and high spatial resolution, for use in either a radiation detection environment or an image intensification environment.

Photocathode de conversion directe de rayons X ou gamma à large bande ayant au moins une couche fonctionnant comme absorbant efficace de rayons X ou gamma et une autre couche fonctionnant comme émetteur efficace d'électrons secondaires afin d'assurer à la fois une grande efficacité de détection et une haute limite de résolution spatiale dans un contexte de détection de rayonnements ou d'intensification d'image.

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