Lec 6 - Ionizing Radiation

Question 1

x rays are blank energy and blank wavelength

Answer 1

high, short

Question 2

wave theory equation

Answer 2

velocity of light = frequency x wavelength

Question 3

principle quantum number

Answer 3

n

Question 4

m shell is blank principal quantum number

Answer 4

3 (3rd shell from nucleus)

Question 5

electron in a closer shell to nucleus has a greater blank

Answer 5

binding energy

Question 6

more mass results in blank binding energy

Answer 6

greater

Question 7

two types of ionizing radiation

Answer 7

particulate, electromagnetic

Question 8

2 types of particulate radiation

Answer 8

alpha, beta

Question 9

x rays are blank radiation

Answer 9

electromagnetic

Question 10

coherent scattering is from blank x rays

Answer 10

low energy

Question 11

compton scattering is from blank x rays

Answer 11

high energy

Question 12

absorption that results in the difference of radiographic density on the film

Answer 12

photoelectric absorption

Question 13

there is always some blank scattering which has x rays hitting film at different angles which reduces definition of the x ray

Answer 13

compton

Question 14

indirect ionization effect on biomolecules dna

Answer 14

free radical formation

Question 15

direct action of x ray on dna is blank

Answer 15

low probability

Question 16

bill nye video?

Answer 16

ok

Question 17

kVp is the blank

Answer 17

quality (amount of energy)

Question 18

mAs is the blank

Answer 18

quantity (number of x rays)

Question 19

gonads, marrow have blank tissue weighting factor

Answer 19

high

Question 20

skin, bone surface have blank tissue weighting factor

Answer 20

low

Question 21

high tissue weighting factor is blank susceptible to damage

Answer 21

more

Question 22

chance of causing cancer for each FMX

Answer 22

2.5 / 1,000,000

Question 23

cell sensitivity to ionizing radiation is directly proportional to cells blank and inversely related to blank

Answer 23

mitotic rate, cell’s degree of differentiation

Question 24

more differentiated cell is blank sensitive to ionizing radiation

Answer 24

less

Question 25

how many electron volts does it take to make a free radical in the tissue

Answer 25

10 electron volts