[gate-users] cuts...

[Corinne J Groiselle]

Hi Gaters,
I still have problems with the cuts. Basically, I don't want to follow 
the electrons. I st the following cuts (see part of the macro below) and 
whatever the cut I set, Gate gives me the same message:

WARNING !
 SetCutValueForOthers became obsolete.
 It is harmless to remove this invokation without any side effects.
 This dummy method implementation will be removed soon.
G4VRangeToEnergyConverter::ConvertCutToKineticEnergy   for gamma
The cut in range [1.000e+00 (mm)]   is too big   for material  idx=2
The cut in energy is set1.798e+305GeV
G4VRangeToEnergyConverter::ConvertCutToKineticEnergy   for e-
The cut in range [1.000e+06 (mm)]   is too big   for material  idx=2
The cut in energy is set1.798e+305GeV
G4VRangeToEnergyConverter::ConvertCutToKineticEnergy   for e+
The cut in range [1.000e+00 (mm)]   is too big   for material  idx=2
The cut in energy is set1.798e+305GeV
G4VRangeToEnergyConverter::ConvertCutToKineticEnergy   for e-
The cut in range [1.000e+06 (mm)]   is too big   for material  idx=4
The cut in energy is set1.798e+305GeV

What am I doing wrong?

-- Corinne

PS. I did some tests with an analytically defined phantom and the same 
geometry defined as a voxelized phantom (interfile, 160x160x50 - 
1mm/pixel). The run was 6 times longer in the latter, all other 
simulation parameters were identical... Is that what you're experiencing 
too?

#     D E T E C T O R
/gate/world/daughters/name SPECThead
/gate/world/daughters/insert box
/gate/SPECThead/placement/setTranslation +4.0 -33.0 0. cm
/gate/SPECThead/geometry/setXLength 20.0  cm
/gate/SPECThead/geometry/setYLength  0.01 cm
/gate/SPECThead/geometry/setZLength 25.0  cm
#       C R Y S T A L
/gate/SPECThead/daughters/name CrystalVolume
/gate/SPECThead/daughters/insert box
/gate/CrystalVolume/geometry/setXLength 20.0  cm
/gate/CrystalVolume/geometry/setYLength  0.01 cm
/gate/CrystalVolume/geometry/setZLength 25.0  cm
/gate/CrystalVolume/setMaterial Neutronium
#       A T T A C H    C R Y S T A L  SD
/gate/systems/SPECThead/crystal/attach CrystalVolume
/gate/CrystalVolume/attachCrystalSD
#       E M  P R O C E S S
/gate/physics/gamma/selectRayleigh lowenergy
/gate/physics/gamma/selectPhotoelectric lowenergy
/gate/physics/gamma/selectCompton lowenergy
/gate/physics/setElectronCut 1 km
/gate/physics/setXRayCut 3. keV
/gate/physics/setDeltaRayCut 1. GeV
#       S O U R C E
/gate/source/addSource XRay
/gate/source/XRay/setActivity 1000000000000 Bq
/gate/source/XRay/gps/particle gamma
/gate/source/XRay/gps/energy {ENERGY} keV
/gate/source/XRay/gps/type Volume
/gate/source/XRay/gps/shape Sphere
/gate/source/XRay/gps/radius 0. cm
/gate/source/XRay/gps/centre -6.0 33.005 0. cm
/gate/source/XRay/gps/angtype iso
/gate/source/XRay/gps/minphi    90.00 deg
/gate/source/XRay/gps/maxphi    97.65 deg
/gate/source/XRay/gps/mintheta  82.35 deg
/gate/source/XRay/gps/maxtheta  97.65 deg
#     L A U N C H
/gate/application/setTimeSlice 1. s
/run/beamOn {NbrOfXRays}

-- 

------------------------------------------------------------------------
Corinne J. Groiselle, PhD
Research instructor

Division of Nuclear Medicine / Department of Radiology
University of Massachusetts Medical School
55 Lake Avenue North
Worcester, MA 01655
USA

_phone_: (508)-856-6123 - fax: (508)-856-4572
_e-mail_: Corinne.Groiselle at umassmed.edu
_professional homepage_: http://users.umassmed.edu/corinne.groiselle
_personal homepage_: http://corinne.groiselle.free.fr


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