Physics Chapter 8

20問 • 1年前

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通報

問題一覧

Projectile electrons travel from _______

cathode to anode

During an exposure, most of the ________ energy of the projectile electrons is converted to _________.

kinetic; heat

At the target, the projectile electrons interact with ________.

inner-shell and outer-shell electrons

The efficiency of x-ray production is __________ the tube current.

not affected by

Most of the heat generated at the target is due to _________.

outer-shell excitation

The production of heat at the anode is directly proportional to _________.

tube current

The efficiency of x-ray production increases as _________ increases.

kVp

Approximately _______ of the kinetic energy of the projectile electrons is converted to x-rays at the target.

Electrons interactions at the inner shell of the target atoms produce ________ radiation.

characteristic

The useful characteristic x-rays from tungsten targets are _____ -shell x-rays.

Characteristic K-shell x-rays have an effective energy of ______ keV.

Most of the x-rays produced at the target are ________.

bremsstrahlung

At 55 kVp, _______ of the x-rays produced are bremsstrahlung.

100%

Bremsstrahlung x-rays are produced by _______ at the target.

slowing electrons

Characteristic x-rays are produced by _________.

released binding energy

The quantity of bremsstrahlung radiation increases proportionately with increased _______.

mAs

An exposure taken at 100kVp would have a continuous emission spectrum with a maximum energy of ____ keV.

100

The ______ of an x-ray beam is higher when the peak of the emission spectrum is further to the ________.

quality; right

An increase in mAs would ______ the ______ of the emission spectrum.

increase; amplitude alone

An increase in kVp would _______ the __________ of the emission spectrum.

increase; amplitude and position

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問題一覧

Projectile electrons travel from _______

cathode to anode

During an exposure, most of the ________ energy of the projectile electrons is converted to _________.

kinetic; heat

At the target, the projectile electrons interact with ________.

inner-shell and outer-shell electrons

The efficiency of x-ray production is __________ the tube current.

not affected by

Most of the heat generated at the target is due to _________.

outer-shell excitation

The production of heat at the anode is directly proportional to _________.

tube current

The efficiency of x-ray production increases as _________ increases.

kVp

Approximately _______ of the kinetic energy of the projectile electrons is converted to x-rays at the target.

Electrons interactions at the inner shell of the target atoms produce ________ radiation.

characteristic

The useful characteristic x-rays from tungsten targets are _____ -shell x-rays.

Characteristic K-shell x-rays have an effective energy of ______ keV.

Most of the x-rays produced at the target are ________.

bremsstrahlung

At 55 kVp, _______ of the x-rays produced are bremsstrahlung.

100%

Bremsstrahlung x-rays are produced by _______ at the target.

slowing electrons

Characteristic x-rays are produced by _________.

released binding energy

The quantity of bremsstrahlung radiation increases proportionately with increased _______.

mAs

An exposure taken at 100kVp would have a continuous emission spectrum with a maximum energy of ____ keV.

100

The ______ of an x-ray beam is higher when the peak of the emission spectrum is further to the ________.

quality; right

An increase in mAs would ______ the ______ of the emission spectrum.

increase; amplitude alone

An increase in kVp would _______ the __________ of the emission spectrum.

increase; amplitude and position