题目内容

If one lead apron attenuates 95% of an x-ray beam, two aprons will transmit approximately ____.

A. 5
B. 2.5
C. 1.25
D. 0.25

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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

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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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If one lead apron attenuates 95% of an x-ray beam, two aprons will transmit approximately ____.

A. 5 B. 2.5 C. 1.25 D. 0.25

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

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 ______.

A. 5
B. 2.5
C. 1.25
D. 0.25