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Although an appropriate calibration
factor N
D
is established for each
beam energy, correction factors are
required for a diode reading
R
diode
:
D
diode
=
R
diode
·
N
D
·
C
SSD
·
C
pts.thikness
·
C
field
size
May be acceptable with no
correction
Meijer GJ,
et.al.Int J Radiat Oncol
Biol Phys
. 49:1409-18, 2001.
SSD
pts.thickness
field size
Diodes