X-ray Production Quiz A

When 65 kVp is set on the operating console of an x-ray unit with a tungsten target, no K-characteristic radiation is produced.

• True

• False

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

The stronger the attraction between the filament electron and the nucleus, the less energy the brems photon has.

• True

• False

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

Generally speaking, an increase in the quantity of radiation results in decreased patient dose.

• True

• False

HVL is described as a certain amount of tungsten or its equivalent that will reduce beam intensity by one half.

• True

• False

Answer explanation

HVL is measured in aluminum eq. not tungsten.

Tags

NGSS.HS-PS4-4

The discrete emission spectrum is limited to a few specific values.

• True

• False

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

When the kVp is changed from 60 to 120, the discrete line on the x-ray emission spectrum shifts to the right.

• True

• False

Answer explanation

The only factor that changes the location of the discrete portion of the emission spectrum is the target material. Because target material changes the binding energies of the orbital electrons, which changes the energies of the characteristic x-rays released.

Tags

NGSS.HS-PS4-4

How many alterations in the direction of the current flow occur per second in a 60 Hz AC current?

• 20

• 60

• 90

• 120

Tags

NGSS.HS-PS4-1

The diagnostic x-ray range is approximately

• 10 to 1,200 mA.

• 25 to 150 kVp.

• 0.001 to 10 seconds.

• all of the above

During x-ray production the electrons penetrate the target approximately:

• 0.2 mm

• 0.5 mm

• 2 mm

• 5 mm

Tags

NGSS.HS-PS4-4

X-rays are produced by:

• characteristic interactions

• uncharacteristic interactions

• bremsstrahlung interactions

• compton interactions