# US 2008/0185535 A1 · Method for registering a storage phosphor screen

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- Number: US 2008/0185535 A1
- Document ID: US20080185535A1
- Status: Published application
- Kind: A1
- Application number: 11/756,989
- Filed: 2007-06-01
- Published: 2008-08-07
- Earliest claimed: 2005-12-15
- Assignees: General Electric Company
- Inventors: Clifford Bueno; Nelson Raymond Corby; Kenneth Gordon Herd
- Web page: https://patentgrep.com/patent/US20080185535A1

## CPC

- G01T 1/2014: {Reading out of stimulable sheets, e.g. latent image}
- G01T: MEASUREMENT OF NUCLEAR OR X-RADIATION (radiation analysis of materials, mass spectrometry G01N23/00; tubes for determining the presence, intensity, density or energy of radiation or particles H01J47/00)

## Abstract

A computed radiography (CR) system for imaging an object is provided. The system includes a radiation source, a storage phosphor screen, an illumination source and a two dimensional imager. The radiation source is configured to irradiate the storage phosphor screen, and the storage phosphor screen is configured to store the radiation energy. The illumination source is configured to illuminate at least a sub-area of the storage phosphor screen to stimulate emission of photons from the storage phosphor screen. The two dimensional (2D) imager is configured to capture a two dimensional image from the storage phosphor screen using the stimulated emission photons. A method of reading a storage phosphor screen is also provided. The method includes illuminating at least a sub-area of the storage phosphor screen using an illumination source to stimulate emission of photons from the storage phosphor screen. The method further includes capturing at least one 2D image using a 2D imager, from at least a sub-array of the storage phosphor screen using the stimulated photons.

## Claims

### Claim at position 1

1-44. (canceled)

### Claim 45

A method for registering a storage phosphor screen comprising:
recording an identification number for a storage phosphor screen;
retrieving a correction function associated with the storage phosphor screen, based on the identification number; and
registering the storage phosphor screen in the field of view of an imaged object using the correction function.

### Claim 46 (depends on 45)

The method of claim 45, wherein the identification number is recorded using a plurality of machine-readable tags.

### Claim 47 (depends on 45)

The method of claim 45, wherein registering the storage phosphor screen in the field of view of the object comprises applying a plurality of two-dimensional fiducial patterns to the storage phosphor screen.

### Claim at position 5

48-52. (canceled)