User Manual Part 2

87
2852 A EN 20070205
DRYSTAR AXYS
Quality Control for general
radiography applications (DT 2 B &
DT 2 C)
In order to establish and maintain consistent image quality, a regular evaluation
of image quality is advised.
The Drystar AXYS contains an automatic QC procedure for general radiography
applications and has been designed to comply with the grayscale reproduction
constancy test, according to the international standard IEC 1223-2-4. If the
option for the mammography application is activated, another QC procedure is
available for the mammography application (refer to “Quality control for mam-
mography application (DT 2 Mammo) (optional)” on page 104. In this chapter
we will discuss how to control the quality of general radiography applications.
Local Regulations may require other procedures.
The Drystar AXYS Hard copy quality control procedure consists of two main
steps:
Q Before initial use, establishing a number of reference values that will be used
for further follow-up and verifying initial image quality.
Refer to “Establishing the reference values and verifying image quality for gen-
eral radiography applications (DT 2 B and DT 2 C)” on page 88.
Q After establishing these values, performing regular daily, weekly and annual
quality tests.
Refer to “Quality Control for general radiography applications (DT 2 B &
DT 2 C)” on page 87.
The results of these tests are recorded on Quality Control Charts.
The QC image (Refer to “QC test image for general radiography applications
(DT 2 B and DT 2 C)” on page 90) has several additional fields where the QC
data can be filled in. This image should be filed as part of the QC procedure.
For more information, please refer to “Quality Control Charts” on page 149.
Note: Repeat the two main steps of the Hard Copy quality procedures for
each input tray loaded with DT 2 B and/or DT 2 C films.