Homework & Quiz Questions

Question 1

The PRIMARY purpose of voltage rectification is:
A) increase x-ray production
B) create high energy x-rays
C) eliminate voltage ripple
D) prevent electrons from striking cathode

Answer 1

prevent electrons from striking cathode

Question 2

What happens to the energy spectrum when kVp decreases?

Answer 2

decreases the amplitude and max voltage decrease

Question 3

What happens to the energy spectrum when mAs increases?

Answer 3

only the amplitude increases

Question 4

When filtration is added to an x-ray beam, the average of the energy spectrum shifts ___ and ___ amplitude

Answer 4

right ,decreases

Question 5

Which of the following will have the greatest effect on the probability of Bremsstrahlung production?
mAs, tube current
V, tube potentail
Z, atomic #
A, mass #

Answer 5

Z

Question 6

Changing which of the following has the least effect on the average energy of the x-ray spectrum?
target material
mAs
filtration
kVp

Answer 6

mAs

Question 7

Is exposure quantity or quality?

Answer 7

quantity

Question 8

The high voltage on the x-ray tube does what?

Answer 8

accelerates electrons

Question 9

The low voltage on the x-ray tube does what?

Answer 9

produces electrons

Question 10

___ is a measure of the charge produced

Answer 10

mAs (mA-s)

Question 11

penetration ___ with a ___ atomic #

Answer 11

increases, lower

Question 12

exposure is a measure of the ____

Answer 12

intensity of radiation (quantity)

Question 13

the lower the E of the beam, the ___ the beam is attenuated

Answer 13

quicker

Question 14

the intensity of electrons created by photoelectric production can be increased by increasing what?

Answer 14

increasing the quantity of photons

Question 15

What type of interaction produces a photon of equal energy to the initial photon?

Answer 15

Coherent

Question 16

___ and ___ are possible after photoelectron interactions?

Answer 16

characteristic x-ray, auger electrons

Question 17

Which photon interaction is not inversely proportional to the photon energy?

Answer 17

pair production

Question 18

Which is true about compton scattering?
The scattering photon gains energy
The incident photon energy is much greater than the binding energy of electron.
The photon is absorbed by the atom.
It is independent of the atomic mass.

Answer 18

The incident photon energy is much greater than the binding energy of electron.

Question 19

Which type of photon interaction is it when all the photon energy is given to the nucleus of the atom?

Answer 19

Pair Production