2.10. Pet
The PET scanner generator page allows the user to create a PET scanner geometry, using his own configuration or from a set of predefined commercial scanners.
- The geometry is composed by three components:
Crystals block, a unit that contains many rectangular crystals
Module, repetition of crystal blocks
A repetition of the crystal modules using
LATTICE
around the patient

2.10.1. Ribbon
Label |
Shortcut |
Description |
---|---|---|
Template |
Select a commercial PET scanner from flair templates |
Label |
Shortcut |
Description |
---|---|---|
|
Create the geometry input cards |
2.10.2. Options
Axes Naming: The geometry will be generated along the Z axis on the X-Y plane. The naming of the axes used are the following:
- Radial:
Along the radius of the scanner. Origin is at X=Y=0
- Azimuthal:
Azimuthal angle of the scanner starting from X=0
- Axial:
Equal to the Z-direction
Label Frames:
- NR:
Number of crystals along the radial direction
- DR:
Thickness of crystals along the radial direction
- dR:
Gap between crystals along the radial direction
- Nz:
Number of crystals along the axial/Z direction
- Dz:
Thickness of crystals along the axial/Z direction
- dz:
Gap between crystals along the axial/Z direction
- NTheta:
Number of crystals along the azimuthal (theta) direction
- DTheta:
Thickness of crystals along the azimuthal (theta) direction
- dTheta:
Gap between crystals along the azimuthal (theta) direction
- Module:
- MR:
Number of blocks along the radial direction
- SR:
Gap between blocks along the radial direction
- Mz:
Number of blocks along the axial/Z direction
- Sz:
Gap between blocks along the axial/Z direction
- MTheta:
Number of blocks along the azimuthal (theta) direction
- STheta:
Gap between blocks along the azimuthal (theta) direction
- Pet:
- Modules:
Number of crystal modules composing the scanner
- Radius:
Inner(minimum) radius location of the crystal modules
- Angle:
Opening angle for half of the PET. 180deg is for a full PET system
- Material:
Material to be assigned to the crystals.
Warning
the material definition is not automatically inserted to the input. The user has to inserted it from the database
- Region:
FLUKA region name where the scanner will be placed. The region expression will be modified, all crystal modules will be subtracted from it