x-ray basics

Question 1

source spot size effect

Answer 1

larger causes blurring
limited spot size due to heat

Question 2

focal spot size effect

Answer 2

lower causes blurring and lower resolution

but heat deposited in larger area

Question 3

total unsharpness factors for determining resolution

Answer 3

source focal spot size F
intrinsic detector resolution D

Question 4

detector blur

Answer 4

intrinsic detector resolution commonly approximated by D~FMWH
full width half maximum

if move object away from detector, lower detector blur
(effect of detector blur is demagnified if object is further)

opposite for source blur

Question 5

source blur

Answer 5

object moved closer to source leads to larger source blur at detector