[Gate-users] pixelate crystal in spect

[Matthew Strugari]

Hi Asra,

Could you include a macro file with more information? As Sveta suggested, you should have the following lines in your macro

gate/SPECThead/daughters/name crystal
/gate/SPECThead/daughters/insert box
/gate/crystal/geometry/setXLength 9.5 mm
/gate/crystal/geometry/setYLength  387 mm
/gate/crystal/geometry/setZLength  533 mm
/gate/crystal/placement/setTranslation -20.95 0 0  mm
/gate/crystal/setMaterial NaI

# Include these lines to attach the scintillation crystal to the detection level of the SPECThead system and attach the crystal as a sensitive detector
/gate/systems/SPECThead/crystal/attach crystal  # monolithic crystal
/gate/crystal/attachCrystalSD

# Update these lines to reflect your desired 256x256 matrix sized to your crystal
/gate/output/projection/enable
/gate/output/projection/setFileName resolution
/gate/output/projection/pixelSizeX 1.512 mm
/gate/output/projection/pixelSizeY 2.083 mm
/gate/output/projection/pixelNumberX 256
/gate/output/projection/pixelNumberY 256

# Specify the projection plane (XY, YZ or ZX)
##
/gate/output/projection/projectionPlane YZ

Cheers,
Matthew



________________________________
From: Gate-users <gate-users-bounces at lists.opengatecollaboration.org> on behalf of Sveta <sveta at txcorp.com>
Sent: August 15, 2019 7:46 AM
To: Asra Talebi <asra.talebi at modares.ac.ir>
Cc: gate-users at lists.opengatecollaboration.org <gate-users at lists.opengatecollaboration.org>
Subject: Re: [Gate-users] pixelate crystal in spect

Should you use the “attach” command as well?

iSveta

On Aug 15, 2019, at 6:44 AM, Asra Talebi <asra.talebi at modares.ac.ir<mailto:asra.talebi at modares.ac.ir>> wrote:


Hello


I simulate a spect system. the dimensions of crystal is 9.5*387*533. i try  setting  the pixel size of image(256*256) with crystal's dimensions. any variation in pixel size in out put file cause code not to  run.


do you have any idea for solving it??




thanks



gate/SPECThead/daughters/name crystal
/gate/SPECThead/daughters/insert box
/gate/crystal/geometry/setXLength 9.5 mm
/gate/crystal/geometry/setYLength  387 mm
/gate/crystal/geometry/setZLength  533 mm
/gate/crystal/placement/setTranslation -20.95 0 0  mm
/gate/crystal/setMaterial NaI


#########
default output file

/gate/output/projection/enable
/gate/output/projection/setFileName resolution
/gate/output/projection/pixelSizeX 0.904 mm
/gate/output/projection/pixelSizeY 0.904 mm
/gate/output/projection/pixelNumberX 128
/gate/output/projection/pixelNumberY 128

# Specify the projection plane (XY, YZ or ZX)
##
/gate/output/projection/projectionPlane YZ






asra sadat talebi
PhD Scholar
Tarbiat Modares University
Department of medical physics
Tehran - Iran
E-mail address:  asra.talebi at modares.ac.ir<mailto:asra.talebi at modares.ac.ir>

asra.talebi at yahoo.com<mailto:asra.talebi at yahoo.com>


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