Technical Factors

Question 1

energy conversion when fast-moving electrons interacts with the anode

Answer 1

xrays

Question 2

incident electrons interacts with the force field of the nucleus

Answer 2

bremsstrahlung interaction

Question 3

german word for breaking or slowing down

Answer 3

bremsstrahlung

Question 4

incident electron interacts with an inner-shell electron

Answer 4

characteristic interaction

Question 5

only _______ has sufficient energy photon to produced useful beam

Answer 5

K-shell characteristics

Question 6

their energy difference between the binding energies of the shell involved in the interaction

Answer 6

characteristic photons

Question 7

tungsten target have energies of

Answer 7

59-69 kEv

Question 8

molybdenum target have energies of

Answer 8

17-20 kEv

Question 9

refers to the intensity of Xray measured by mR

Answer 9

Radiation Quantity

Question 10

refers to the energy of the xray beam

Answer 10

Radiation Quality

Question 11

4 technical factors in radiography

Answer 11

mA
Sec
kVp
Distance

Question 12

it controls the current supplied to the filament

Answer 12

mA

Question 13

controls the length of time the tube

controls the intensity of xray beam

Answer 13

sec

Question 14

any combination of mA and time which yield the same product will result to the same density

Answer 14

Reciprocity law

Question 15

states that at very short and very long exposure time, the resultant density is somewhat less than what is expected

Answer 15

Reciprocity law failure

Question 16

intensity of xray photons

Answer 16

mAs

Question 17

the intensity of the xray beam decreases by a factor of four with the square of the distance

Answer 17

Inverse square law

Question 18

Affects the intensity of the xray beam that will interacts with the xray film

Answer 18

distance

Question 19

affects the penetrability of the xray beam and image contrast

Answer 19

kVp

Question 20

kVp =

Answer 20

thickness (cm) x 2 / constant

Question 21

used to measure thickness of the body in cm

Answer 21

caliper

Question 22

increasing kVp by 15% will result to the same increase in density as doubling the mAs

Answer 22

15% kVp rule