Lec 6 - Ionizing Radiation Flashcards
x rays are blank energy and blank wavelength
high, short
wave theory equation
velocity of light = frequency x wavelength
principle quantum number
n
m shell is blank principal quantum number
3 (3rd shell from nucleus)
electron in a closer shell to nucleus has a greater blank
binding energy
more mass results in blank binding energy
greater
two types of ionizing radiation
particulate, electromagnetic
2 types of particulate radiation
alpha, beta
x rays are blank radiation
electromagnetic
coherent scattering is from blank x rays
low energy
compton scattering is from blank x rays
high energy
absorption that results in the difference of radiographic density on the film
photoelectric absorption
there is always some blank scattering which has x rays hitting film at different angles which reduces definition of the x ray
compton
indirect ionization effect on biomolecules dna
free radical formation
direct action of x ray on dna is blank
low probability
bill nye video?
ok
kVp is the blank
quality (amount of energy)
mAs is the blank
quantity (number of x rays)
gonads, marrow have blank tissue weighting factor
high
skin, bone surface have blank tissue weighting factor
low
high tissue weighting factor is blank susceptible to damage
more
chance of causing cancer for each FMX
2.5 / 1,000,000
cell sensitivity to ionizing radiation is directly proportional to cells blank and inversely related to blank
mitotic rate, cell’s degree of differentiation
more differentiated cell is blank sensitive to ionizing radiation
less
how many electron volts does it take to make a free radical in the tissue
10 electron volts
