For the image intensifier used in fluoroscopy, conversion of visible photons to electrons is completed by the:
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The probability of Compton scattering depends on the effecti…
The probability of Compton scattering depends on the effective atomic number of tissues.
X-ray fluoroscopy is a continuous x-ray imaging technique th…
X-ray fluoroscopy is a continuous x-ray imaging technique that requires using an X-ray tube with a high tube voltage.
Characteristic x-ray radiation has a continuous spectrum.
Characteristic x-ray radiation has a continuous spectrum.
A processed film with optical density (OD) of 0.2 is placed…
A processed film with optical density (OD) of 0.2 is placed over another film with OD of 0.1. The resulting total OD is
Compton scattering may cause reduction of an x-ray beam inte…
Compton scattering may cause reduction of an x-ray beam intensity passing through a patient.
An x-ray tube emits 1014 photons per second. The x-ray is as…
An x-ray tube emits 1014 photons per second. The x-ray is assumed to contain only 50-keV photons and irradiates a 0.2-mm-thick tissue sample for 0.2 second. The HVL of the sample is 0.8 cm, and the energy absorption coefficient of the sample is 0.1 cm−1 for 50-keV photons.
A higher resolution of an X-ray image may be achieved by usi…
A higher resolution of an X-ray image may be achieved by using
Photoelectric effect is one of the main processes for x-ray…
Photoelectric effect is one of the main processes for x-ray generation.
A tissue (12 cm x 20 cm) was exposed for 0.1 second to an x-…
A tissue (12 cm x 20 cm) was exposed for 0.1 second to an x-ray containing 5×1013 photons. The radiation flux is