Detector Efficiency Is Defined as
A)the Ratio of the Number $\mu$

question 33

Multiple Choice

Detector efficiency is defined as

• A)the ratio of the number of detected events to the number of source emissions.
• B)the geometric efficiency and is defined as the fraction of emitted photons (gamma or x-rays) that hit the detector; it depends on the detector configuration and its distance from the source.
• C)the fraction of gamma rays that are detected when they hit the detector; it depends on the thickness (t) and attenuation coefficient (\(\mu\)) of the detecting material.
• D)the amount of blurring that is produced by an imaging system, characterized by point spread function and line spread function.

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Definitions:

Apgar Scale

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Prenatal Vital Signs

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Irritability Measurement

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Perinatal Mortality

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