Gabriele Cosmo
100 lines
2.3 KiB
Plaintext
100 lines
2.3 KiB
Plaintext
#==========================- Pre-initialisation parameters -=========================
|
|
|
|
########### Image Quality Phantom ####################
|
|
#choose the type of phantom
|
|
/changePhantom/setPhantom NEMA_imageQualityPhantom_wholeBody
|
|
|
|
#set the activity in the phantom
|
|
/change/Activity 3840000 becquerel #3840000 becquerel
|
|
|
|
#Set the halflife of the isotope in units of second
|
|
/change/HalfLife 6586.2 s #Halflife of F-18
|
|
|
|
/run/initialize
|
|
/run/verbose 2
|
|
|
|
|
|
#### the activity distribution of the hot source to the background (BG) is 4:1. The activity distribution ratio is done by considering the volume of the phantoms
|
|
|
|
#hotsphere1, diameter = 10 mm
|
|
/gps/source/intensity 3
|
|
/gps/particle ion
|
|
/gps/ion 9 18 0 0 # F-18
|
|
/gps/energy 0 keV
|
|
/gps/pos/type Volume
|
|
/gps/pos/shape Sphere
|
|
/gps/pos/centre 28.6 49.5367 0 mm
|
|
/gps/pos/radius 5 mm
|
|
/gps/ang/type iso
|
|
|
|
#hotsphere2, diameter = 13 mm
|
|
/gps/source/add 6.591
|
|
/gps/ion 9 18 0 0 # F-18
|
|
/gps/energy 0 keV
|
|
/gps/pos/type Volume
|
|
/gps/pos/shape Sphere
|
|
/gps/pos/centre -28.6 49.5367 0 mm
|
|
/gps/pos/radius 6.5 mm
|
|
/gps/ang/type iso
|
|
|
|
|
|
#hotsphere3, diameter = 17 mm
|
|
/gps/source/add 14.739
|
|
/gps/ion 9 18 0 0 # F-18
|
|
/gps/energy 0 keV
|
|
/gps/pos/type Volume
|
|
/gps/pos/shape Sphere
|
|
/gps/pos/centre -57.2 0 0 mm
|
|
/gps/pos/radius 8.5 mm
|
|
/gps/ang/type iso
|
|
|
|
|
|
#hotsphere4, diameter = 22 mm
|
|
/gps/source/add 31.944
|
|
/gps/ion 9 18 0 0 # F-18
|
|
/gps/energy 0 keV
|
|
/gps/pos/type Volume
|
|
/gps/pos/shape Sphere
|
|
/gps/pos/centre -28.6 -49.5367 0 mm
|
|
/gps/pos/radius 11 mm
|
|
/gps/ang/type iso
|
|
|
|
|
|
|
|
################ activity for body phantom ###################
|
|
/gps/source/add 18576.41
|
|
/gps/particle ion
|
|
/gps/ion 9 18 0 0 # F-18
|
|
/gps/pos/type Volume
|
|
/gps/pos/shape Cylinder
|
|
|
|
#The body phantom is shifted as discribed in the NEMA standard
|
|
/gps/pos/centre 0 -35 -23 mm
|
|
/gps/pos/radius 147 mm
|
|
/gps/pos/halfz 88.5 mm
|
|
/gps/ang/type iso
|
|
|
|
|
|
########## activity for test phantom (line source) ###########
|
|
#the same intensity as body phantom
|
|
|
|
/gps/source/add 31579.9
|
|
/gps/particle ion
|
|
/gps/ion 9 18 0 0 # F-18
|
|
/gps/pos/type Volume
|
|
/gps/pos/shape Cylinder
|
|
|
|
#The line source shifted by +418 mm in z direction and 45 mm in the y direction toward the patient bed
|
|
/gps/pos/centre 0 -45 432.5 mm
|
|
/gps/pos/radius 1.6 mm
|
|
/gps/pos/halfz 350 mm
|
|
/gps/ang/type iso
|
|
|
|
|
|
#/random/setSeeds 1 2
|
|
|
|
/run/beamOn 10000
|
|
|
|
|
|
|