X-Ray Interaction with Matter Flashcards Preview

Radiation Physics > X-Ray Interaction with Matter > Flashcards

Flashcards in X-Ray Interaction with Matter Deck (9)
Loading flashcards...
1

classic/coherent/Thompson

- approx 10 keV
- low energy

2

compton effect

incident photon interacts with outer shell electron (ejection of Compton e-)
- back scatter radiation

3

Compton-scatter probability is decreased with..

increase in x-ray energy

4

photoelectric effect/absorption

- low E photon interacts boots another electron
- increases if atomic number (Z) of medium increases

5

vital for PE interaction

incident photon E is equal to or greater than electron binding E of K-shell electron

6

increase compton scatter

increase in total mass density (not increase in atomic number)

7

X-ray transmission + compton scatter + PE =

differential absorption

8

compton scatter contributes

no useful info to info to image

9

radiographic grids are used to

remove comton scatter (clean)