186 / 881
collimator angle cranial field = ‘half top angle’ spinal field
Cranio-spinal lesions
α
β
L
inv.tan = α = β
100
L
|
|
186 / 881
collimator angle cranial field = ‘half top angle’ spinal field
Cranio-spinal lesions
α
β
L
inv.tan = α = β
100
L