Compared to a low-energy collimator, a high-energy collimator will have all of the following EXCEPT
A) thicker septa.
B) longer holes.
C) lower resolution.
D) higher sensitivity.
Correct Answer:
Verified
Q23: A low-pass filter
A)allows low frequencies to pass
Q24: Quench gas is used in a Geiger-Mueller
Q25: When the same nonuniformity is back-projected at
Q26: If a detector can produce an electronic
Q27: Body contouring or elliptical orbits in SPECT
Q29: Increased sensitivity for SPECT imaging can be
Q30: In SPECT/CT imaging, it is best if
Q31: When referring to image quality, contrast
A)refers to
Q32: The center-of-rotation measurement
A)determines the number of projections.
B)corresponds
Q33: Ramp-filtered projections are characterized by
A)a star artifact.
B)edge
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