[Gate-users] cylindrical source rotation

[Pedro Correia]

Dear Gate users

I have a question regarding the rotation of a cylindrical source. 

My code is the following:

/gate/source/addSource                  twogamma

/gate/source/twogamma/setActivity       500000 becquerel
/gate/source/twogamma/setType           backtoback
/gate/source/twogamma/gps/particle      gamma
/gate/source/twogamma/gps/energytype    Mono
/gate/source/twogamma/gps/monoenergy    0.511 MeV
/gate/source/twogamma/gps/type          Volume
/gate/source/twogamma/gps/shape         Cylinder
/gate/source/twogamma/gps/radius        1.27 mm
/gate/source/twogamma/gps/halfz         2.159 mm
/gate/source/twogamma/gps/angtype       iso
/gate/source/twogamma/gps/centre        45. 5. 0. mm

But this creates a cylinder with an axis parallel to the ZZ’axis. I want to rotate it and obtain a cylinder with an axis parallel to the YY’s axis.

I tried to modify the command  
/gate/source/twogamma/gps/halfz         2.159 mm
to 
/gate/source/twogamma/gps/halfy         2.159 mm

but it didn’t work. 

I also tried to use rotation functions, but I didn’t find a solution.

Thank you very much for all the help.
Best regards, 

Pedro Correia
PhD Student
University of Aveiro