WorksheetsMammography FQ1
Total questions: 18
Worksheet time: 20mins
The year of the first attempt in mammography.
1900's
1910's
1920's
1930's
It is possible for an x-ray tube target to have bi-angle anodes.
True
False
What are the common anode target materials used in mammography?
Anode target angle usually ranges from:
0-14 degrees
0-10 degrees
0-12 degrees
0-16 degrees
Focal spot sizes for mammography:
large (0.1 mm) & small (0.03 mm)
large (0.3 mm) & small (0.1 mm)
large (0.3 mm) & small (0.01 mm)
large (1 mm) & small (0.3 mm)
A beryllium window is used to avoid softer radiation from passing through the x-ray tube.
True
False
Recommended target-filter combination used for breasts less than 5 cm thick
Mo/Mo
Rh/Rh
W/Al
Mo/W
X-ray beam with photon energies around 40 keV is optimal for breast imaging.
True
False
The distance measured between the focal spot target to the IR.
(a)
The distance measured between the breast to the IR.
(a)
What is the average SID for mammography?
55-60 cm
60-65 cm
65-70 cm
80-100 cm
This refers to a reduction of x-ray intensity toward the anode side.
(a)
On which side should the cathode be positioned in mammography?
(a)
This is responsible for increasing the output voltage to the kVp necessary.
generator
autotransformet
console
x-ray tube
This is a device for reducing level of scatter radiation that reaches the IR.
(a)
This is the height of the grid divided by the interspace width.
grid ratio
grid frequency
grid type
grid design
As grid frequency increases, lesser grid strips can absorb x-rays.
True
False
This is a grid specifically used in mammography which has the clean-up characteristics of a crossed grid which reduces scatter radiation in two directions.
(a)
