题目内容

A grid improves the quality of a diagnostic x-ray primarily by attenuating ___.

A. Primary photons
B. Compton scattered photons
C. Photoelectrons
D. Coherent scattered photons

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The quality of a diagnostic x-ray beam is determined by measuring the _____.

A. Peak tube voltage.
B. Effective kV of the beam.
C. The mm of Al filtration added to the beam.
D. The half-value layer in Al.

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For 100 KeV X-ray beam, linear attenuation coefficients of aluminum and lead are 0.459and 62.244/cm. What is the thickness of lead in mm equivalent to 15 mm of aluminumin ?

A. 0.01mm
B. 0.11mm
C. 1.1mm
D. 11mm

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There are four types of radiation-matter interactions that can contribute to the total attenuation. These are ______.

A. Compton scattering, pair production, photoelectric absorption, rayleigh scattering
B. Compton scattering, electron exchange, photoelectric absorption, rayleigh scattering
C. Electron exchange, pair production, photoelectric absorption, rayleigh scattering
D. None of the above

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After traveling through two half-value layers, the incident radiation has been reduced to _____.

A. 50%
B. 35%
C. 20%
D. None of the above

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A grid improves the quality of a diagnostic x-ray primarily by attenuating ___.

A. Primary photons B. Compton scattered photons C. Photoelectrons D. Coherent scattered photons

The quality of a diagnostic x-ray beam is determined by measuring the _____.

For 100 KeV X-ray beam, linear attenuation coefficients of aluminum and lead are 0.459and 62.244/cm. What is the thickness of lead in mm equivalent to 15 mm of aluminumin ?

There are four types of radiation-matter interactions that can contribute to the total attenuation. These are ______.

After traveling through two half-value layers, the incident radiation has been reduced to _____.

A. Primary photons
B. Compton scattered photons
C. Photoelectrons
D. Coherent scattered photons