[Gate-users] ion source

[Suhaili Zakaria]

Hi

I'm trying to simulate a Y-90 source, and would like to see the
bremsstrahlung produced from the beta.
The problem is that there are absolutely nothing in my gateHits.dat and
gateSingles.dat files. In fact, the same problem occur everytime I define
source as ion particle.

Below are part of my macro.
Or  do you think that it is due to other problem?

and, am I correct to use an effective half-life of Y-90 (37828 s) instead of
the physical half life (2.67 d) ?

#--------#
# SOURCE #
#--------#

/gate/source/addSource beta

/gate/source/beta/gps/particle ion
/gate/source/beta/gps/ion 39 90 0 0
/gate/source/beta/gps/monoenergy 0 keV
/gate/source/beta/setActivity 1000000 Bq
/gate/source/beta/setForcedUnstableFlag true
/gate/source/beta/setForcedHalfLife 37828 s

/gate/source/beta/gps/angtype iso
/gate/source/beta/gps/mintheta 0 deg
/gate/source/beta/gps/maxtheta 180 deg
/gate/source/beta/gps/minphi 0 deg
/gate/source/beta/gps/maxphi 360 deg

/gate/source/beta/gps/type Point
/gate/source/beta/gps/centre 0 0 0 cm

Have I code it correctly?
Or  do you think that it is due to other problem?

Really appreciate your time and help.

Cheers,
Suhaili
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