Radiology

Question 1

the ejection of an electron from na atom, produces charged ion pairs or free radicals

Answer 1

ionization

Question 2

the ______ the group’s wavelength, the stronger the energy, x-rays produce ionization, others do not

Answer 2

shorter

Question 3

60 impulses of x-rays = ?

Answer 3

1 second

Question 4

descrive the number or electron flowing

Answer 4

Amps (mA)

Question 5

describes the potential differences between the - and + and the speed or force of the moving electrons toward the + charge

Answer 5

Volts (kVp)

Question 6

want short or long wavelength?

Answer 6

short- better quality

Question 7

filters out weak x ray photons

Answer 7

aluminium filtration

Question 8

what affects penetration quality?

Answer 8

kVp and filtration

Question 9

what affects quantity?

Answer 9

mA, exposure time, kVp, aluminum filtration, distance

Question 10

more photons = more ?

Answer 10

density (energy=blackness)

Question 11

how to get more photons

Answer 11

lower filtration/distance, also affected by mA, kVp, exposure time

Question 12

a short scale contrast is from ?

Answer 12

less kVp and aluminum

Question 13

what affects contrast?

Answer 13

kVp and filtration only

Question 14

area of unsharpness

Answer 14

penumbra

Question 15

SLOB rule

Answer 15

same ling, opposite buccal

Question 16

if the distance is doubled or halved, the original energy changes by factor of ___?

Answer 16

4

Question 17

free radicals of water

Answer 17

hyrdolysis

Question 18

why are children more sensitive to radiation?

Answer 18

rapid cell mitosis

Question 19

GO OVER EVERYTHING AGAIN IN CHAPTER

Answer 19

seriously, do it

Question 20

MPD occupational old units

Answer 20

5 rem/yr

Question 21

MPD non occupational old units

Answer 21

.05 rem/yr

Question 22

MPD occupational new units

Answer 22

.05 sv/yr (50msv)

Question 23

MPD non occupational new units

Answer 23

.005 sv/yr (5msv)

Question 24

beam size at the pts face can be no larger than ____ inches

Answer 24

2.75

Question 25

must have at least ____ of total aluminum filtration for up to and including 70kVp, if above 70 kVp it requires ____

Answer 25

1.5 mm, 2.5 mm

Question 26

more or less radiation with long cone?

Answer 26

less

Question 27

operator should stand at least ____ from the scatter course measures from pts head

Answer 27

6 feet