Modes Of Operation; Table 18 Operational Mode Examples 1313Dxt-I - Varex Imaging PaxScan 1313DXT-I Manual

1313DXT-I/1515DXT-I/2520DX-I/3030DX-I X-ray Detectors
9.0

Modes Of Operation

The PaxScan product family supports a number of modes of operation as defined in
general, there is a trade-off between varying operation modes of resolution in respect to field of
view, frame rate or noise. The sensitivity of the detector is optimized to match the X-ray dose
used in each mode.
The system may be in only one mode at a given moment.
Not every mode will be available with every system. The OEM should work
Note
with Varex technical support for configuration of the mode(s) which best
suit the customers intended application.
The purpose of each mode is to configure the detector to achieve optimal performance during
specific imaging procedures. Modes are defined by a combination of factors such as pixel
binning, frame rates, analog gain, field-of-view and continuous versus single acquisition. Each
mode requires a unique set of calibration files. Refer to the ViVA Online help documentation for
complete details.
Each operating mode employs all types of calibration. In accumulation-type acquisitions the
PaxScan product family will sum a number (limited by available memory) of frames and
normalize the result before displaying a new image via the video output ports.
Table 18 Operational Mode Examples 1313DXT-I
Mode Max
Frame
Rate (Hz)
High Dose
56
Fluoroscopy
Normal
56
Fluoroscopy
Full-Resolution
/ High Dose 28
Fluoroscopy
Pixel Gain/
Binning Capacitor
(pF)
2 × 2 1 / 4.0pF
2 × 2 2 / 0.5pF
1 × 1 2 / 0.5pF
www.vareximaging.com
Image Frame Size
Area
Full
576 × 576
Field
Full
576 × 576
Field
Full
1152 × 1152
Field
Table 18. In
Active Acq.
Frame Size Type
566 × 566 Continuous
566 × 566 Continuous
1142 × 1142 Continuous
23