Automatic Exposure Control (Aec) Mode; Standard Exposures - GE SENOGRAPHE DMR+ Technical Publications

GE Medical Systems
REV1
Note:
Note:
Note:
3–2 AEC Mode
Note:
3–2–1

Standard Exposures

In magnification, use of the bucky is not recommended. The operator should use
the cassette holder (refer to Chap 1, Para 2–1–3).
Always make sure that the magnification plate is correctly locked in place before
starting an exam.
The system automatically selects the small focal spot (0.1) when magnification is selected.
The system automatically selects the large focal spot (0.3) when standard exam is selected.
To maintain optimal image quality, the user must check on the control panel display that the
selected focus is dedicated to the selected examination mode:
Contact examination (normal) = 0.3
Magnification = 0.1
The object/film distance is a function of the magnification required.
Refer to the magnification values in Table 1–1, Chap 1.
The Automatic Exposure Control (AEC) Mode controls density (mAs) and provides
exposures of constant optical density.
The operator selects the following parameters:
D
Track (Mo, Rh),
D
Filter (Mo, Rh, A1) (Selection of AL filter is not recommended in AEC mode),
D
Focal spot (0.3, 0.1),
D
Screen-film combination,
D
kV values.
The operator can modify the density correction.
Inhibiting commands will be displayed on the system.
Select configurations and kV values given in manual mode,Chap 2, Para 2–3. Refer to
Tables 2–1 and 2–2, Chapter 2.
The screen-film combination selection depends on user preference.
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SENOGRAPHE DMR+
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