RADIATION IMAGE DETECTOR

• US 20080087834A1
• Filed: 10/12/2007
• Published: 04/17/2008
• Est. Priority Date: 10/12/2006
• Status: Active Grant

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Inventors: Okada, Yoshihiro
• Granted Patent: US 7,557,354 B2
• Time in Patent Office: Days
• US Class Current: 250/370.09
• CPC Class Codes: G01T 1/247 Detector read-out circuitry for processing gain or off-set correction H04N

Abstract

A radiation image detector including: a plurality of image sensing sections, disposed on a substrate in an array, for converting radiation to electrical signals; a plurality of data lines for transferring electrical signals converted by the image sensing sections; a charge amplifier circuit for integrating electrical signals transferred by the data lines; and a selector circuit for connecting a plurality of data lines to the charge amplifier circuit by sequentially switching the data lines.

Claims

1. A radiation image detector, comprising:

a plurality of image sensing sections, disposed on a substrate in an array, for converting radiation to electrical signals;

a plurality of data lines for transferring electrical signals converted by the image sensing sections;

a charge amplifier circuit for integrating electrical signals transferred by the data lines; and

a selector circuit for connecting a plurality of data lines to the charge amplifier circuit by sequentially switching the data lines.

2. The radiation image detector of claim 1, wherein the selector circuit is formed on an IC chip and the IC chip is mounted on the substrate.

3. The radiation image detector of claim 1, wherein the charge amplifier circuit and selector circuit are formed on different IC chips with each other.

4. The radiation image detector of claim 2, wherein the charge amplifier circuit and selector circuit are formed on different IC chips with each other.