Operating instructions

516
Radiation Therapy
RT_Head
Indications:
Spiral mode for routine radio therapy head studies.
A range of 12 cm will be covered in 20.18 sec.
Head 2
nd
recon.
kV 120
Effective mAs/
Quality ref. mAs
320
Rotation time 1.0 sec.
Acquisition 16 x 0.75 mm
Slice collimation 0.75 mm
Slice width 3.0 mm 3.0 mm
Feed/Rotation 6.6 mm
Pitch Factor 0.55
Increment 3.0 mm 3.0 mm
Kernel H31s H60s
CTDI
Vol
67.5 mGy
Effective dose Male: 3.16 mSv
Female: 3.81 mSv