Chapter 13: Digital Detector; Detector Overview - GE Optima XR220amx Operator's Manual

DRAFT

Chapter 13: Digital Detector

This section outlines the basic detector functions, usage, care, and specifications.

Detector Overview

Detector primary functions are:
x
To convert x-ray data into digital image data
x
To transfer the digital data to the system for processing and display
The detector is an x-ray imaging device. It consists of an array of 2024 x 2024 pixels (40.4 x 40.4 cm).
Each pixel is attached to a data acquisition circuit that converts incoming x-ray signal to 14-bit digital
data.
The detector is constructed from a metal case. The front face contains a graphite x-ray imaging window.
The back face contains safety warnings.
Panel
The panel consists of a thin-film amorphous silicon integrated circuit on a glass substrate with a cesium
iodide scintillator. The scintillating material absorbs the x-rays and converts the energy to light. The light
is converted into a charge that is digitized by the detector electronics.
Electronics
The primary function of the readout electronics is to convert the charge into digital image data. This data
is then transmitted to the system through a wireless link or an ethernet connection.
Physical Appearance / Finish
The detector unit is designed to be installable as 1) an external patient access/contact surface and 2) a
non-external patient access/contact surface.
Detector surfaces have been treated with a finish to allow a smooth and easily cleanable surface. Care
shall be taken to protect the surface from scratches.
Nameplates and Markings
A label on the back of the detector contains the GE part number.
Optima XR220amx X-Ray System
Operator Manual
CTRL+SHIFT+F to search using Search Index (faster)
54400222-1EN Rev 1 DRAFT 11092010
© 2010 General Electric Company. All rights reserved.
REVIEW COPY
Chapter 13: Digital Detector
13-1