Ping Xue

US Patent:

8605862, Dec 10, 2013

Filed:

Sep 27, 2010

Appl. No.:

12/891016

Inventors:

Paul Richard Granfors - Berkeley CA, US
John Robert Lamberty - Oconomowoc WI, US
Richard Gordon Cronce - Waukesha WI, US
Ping Xue - Pewaukee WI, US
Marc Schaepkens - Clifton Park NY, US
Aaron Judy Couture - Schenectady NY, US
Douglas Albagli - Clifton Park NY, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

H05G 1/64
G01T 1/24

US Classification:

378 988, 25037009

Abstract:

In one embodiment, a digital X-ray detector is provided with a plurality of pixel regions. Each pixel region includes a first photodiode having a first area and a second photodiode having a second area equal to or smaller than the first area. The digital X-ray detector also includes a shielding structure that overlies the first and second photodiodes of each pixel region with the shielding structure shielding proportionally less of the first photodiode than of the second photodiode to provide the first photodiode with a first sensitivity and the second photodiode with a second sensitivity lower than the first sensitivity.