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Flashcards in Technology Review Deck (18)
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1

sudden deceleration as electrons collide with target anode

Bremsstrahlung X-rays

2

void filled by outer shell electron with emmision of single X-ray photon

characteristic radiation

3

low energy x-ray photon removes atomic electron

photoelectric effect/absorption

4

radiopaque

obstructs transmission

5

radiolucent

permeable to radiation

6

difference between radiopaque and radiolucent areas

contrast

7

differential absorption increases as

kVp goes down

8

attenuation

radiation loses power with penetration

9

cathode expels electrons using heat

thermionic emission

10

focal spot

x-ray producing part of anode

11

x-rays at cathode end of tube have more intensity

anode heel effect

12

mAs

quantity or density

13

kVp

quality or contrast

14

higher the kVp

lower the contrast

15

half value layer

material used to half x-ray

16

inherent filtration

tube and housing

17

added filtration

aluminium and copper

18

collimators

lead shutters