[Gate-users] problem for Cubic voxelized source: Voxel reader (???)
신희순
msk0567 at gmail.com
Thu Apr 28 22:39:59 CEST 2011
Dear Fan
Thanks!
I made two frames with 2.0sec/frame.
When I performed it, it was end mainMacro after reading the first atn and
act frames with ignoring volume.
I did the program line by line instead of macro, and then I got the error as
following:
Idle> /gate/source/voxel/setType backtoback
Idle> /gate/source/voxel/gps/
particle gamma
Idle> /gate/source/voxel/setForcedUnstableFlag true
Idle> /gate/source/voxel/setForcedHalfLife 6586.2 s
Idle> /gate/source/voxel/gps/energytype Mono
Idle> /gate/source/voxel/gps/monoenergy 0.511 MeV
Idle> /gate/source/voxel/gps/confine NULL
**** Error: Volume does not exist ****
Ignoring confine condition
I am wondering that it is its reason.
I hope that I get the good news.
With best regard,
Heesoon.
2011/4/28 Qiyong Fan <fanqy05 at gmail.com>
> Dear Sheen
>
> There are at least two problems.1. If 0 voxels are read in, it means
> GATEerror
> did not successfully load in your phantom. Please check examples. 2. your
> translator does not make sense. Look at what G4 says:
>
>
> [G4] Range 0 : imageValue in [ 9.830e+02 , 9.830e+02 ] --->
> activity (Bq) 1.000e-02
> [G4] Range 1 : imageValue in [ 9.830e+02 , 9.830e+02 ] --->
> activity (Bq) 0.000e+00
>
>
> There are two ranges specified in your translator. Range 0 lets GATE
> translate image value 9.83e02 to 9.83e02 to 1.000e-02 Bq, Range 1 lets GATE
> translate the same image value into 0 Bq. Therefore even if GATE loads in
> your phantom correctly, you will get zero Bq.
>
>
> On Thu, Apr 28, 2011 at 6:00 AM, <
> gate-users-request at lists.opengatecollaboration.org> wrote:
>
> > Send Gate-users mailing list submissions to
> > gate-users at lists.opengatecollaboration.org
> >
> > To subscribe or unsubscribe via the World Wide Web, visit
> >
> http://lists.opengatecollaboration.org/mailman/listinfo/gate-users
> > or, via email, send a message with subject or body 'help' to
> > gate-users-request at lists.opengatecollaboration.org
> >
> > You can reach the person managing the list at
> > gate-users-owner at lists.opengatecollaboration.org
> >
> > When replying, please edit your Subject line so it is more specific
> > than "Re: Contents of Gate-users digest..."
> >
> >
> > Today's Topics:
> >
> > 1. Several questions about the ASCII data output (Qiyong Fan)
> > 2. Re: Several questions about the ASCII data output
> > (Jean-Baptiste Michaud)
> > 3. problem for Cubic voxelized source: Voxel reader (???)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Wed, 27 Apr 2011 11:02:42 -0400
> > From: Qiyong Fan <fanqy05 at gmail.com>
> > To: gate-users at lists.opengatecollaboration.org
> > Subject: [Gate-users] Several questions about the ASCII data output
> > Message-ID: <BANLkTinkVK8hRGoe-gi_6TL3DSaKFr=Nfg at mail.gmail.com>
> > Content-Type: text/plain; charset=ISO-8859-1
> >
> > Dear Gate users,
> >
> > I am using GATE V5 to do a PET experiment with ASCII data output. I have
> > several questions,
> >
> >
> > 1. In the output coincidence file "gateCoincidences.dat", the user guide
> > says for column 22 and 23,
> >
> > - Column 22 : Scanner axial position (first single)
> > - Column 23 : Scanner angular position (first single)
> >
> > What exactly does gate mean by "scanner axial position and angular
> > position"? I got all of them to be 0.000e+00 for all coincidence counts.
> > Just do not know why.
> >
> > 2. Also, the second column is the "ID of the event". What does "event"
> mean
> > here? Does it just mean coincidence event? Therefore, true coincidence
> > event
> > should have the same event ID?
> >
> > Thanks,
> >
> > Qiyong Fan
> >
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Wed, 27 Apr 2011 14:11:00 -0400
> > From: Jean-Baptiste Michaud <jbmichaud at videotron.ca>
> > To: 'Qiyong Fan' <fanqy05 at gmail.com>
> > Cc: gate-users at lists.opengatecollaboration.org
> > Subject: Re: [Gate-users] Several questions about the ASCII data
> > output
> > Message-ID: <003a01cc0506$76cc60b0$64652210$@ca>
> > Content-Type: text/plain; charset=us-ascii
> >
> > Dear Fan,
> >
> > Axial and angular position: you have to include commands to change the
> > position of the object relative to the scanner DURING acquisition in
> order
> > for those values to change. They are used to simulate bed, gantry or
> object
> > movements. The columns that you do not need can be disabled in the output
> > using the output mask.
> >
> > Event ID: a unique disintegration (or back-to-back emission). So yes,
> trues
> > will have the same event ID.
> >
> > Regards
> >
> > jb
> >
> > -----Original Message-----
> > From: gate-users-bounces at lists.opengatecollaboration.org
> > [mailto:gate-users-bounces at lists.opengatecollaboration.org] On Behalf Of
> > Qiyong Fan
> > Sent: April 27, 2011 11:03
> > To: gate-users at lists.opengatecollaboration.org
> > Subject: [Gate-users] Several questions about the ASCII data output
> >
> > Dear Gate users,
> >
> > I am using GATE V5 to do a PET experiment with ASCII data output. I have
> > several questions,
> >
> >
> > 1. In the output coincidence file "gateCoincidences.dat", the user guide
> > says for column 22 and 23,
> >
> > - Column 22 : Scanner axial position (first single)
> > - Column 23 : Scanner angular position (first single)
> >
> > What exactly does gate mean by "scanner axial position and angular
> > position"? I got all of them to be 0.000e+00 for all coincidence counts.
> > Just do not know why.
> >
> > 2. Also, the second column is the "ID of the event". What does "event"
> mean
> > here? Does it just mean coincidence event? Therefore, true coincidence
> > event
> > should have the same event ID?
> >
> > Thanks,
> >
> > Qiyong Fan
> > _______________________________________________
> > Gate-users mailing list
> > Gate-users at lists.opengatecollaboration.org
> > http://lists.opengatecollaboration.org/mailman/listinfo/gate-users
> >
> >
> >
> > ------------------------------
> >
> > Message: 3
> > Date: Thu, 28 Apr 2011 06:58:13 +0900
> > From: ??? <msk0567 at gmail.com>
> > To: Gate-users at lists.opengatecollaboration.org
> > Subject: [Gate-users] problem for Cubic voxelized source: Voxel reader
> > Message-ID: <BANLkTi=qLEFaykFzadryVsEGojnw-V2Qxw at mail.gmail.com>
> > Content-Type: text/plain; charset=ISO-8859-1
> >
> > Dear all,
> >
> > I am trying NCAT phantom in GATE.
> > I used example_TimeActivityCurve for it.
> >
> > I could visualize a voxellized phantom.f
> > However, it cannot be emitted gamma ray.
> > I suppose that I have some problem for Cubic voxelized source as
> > followineesoon.g:
> > [*G4] Voxel reader ----------> number of voxels : 0
> > *The number of voxels is 'zero', so it causes for this.
> >
> > I do not know what I can fix.
> > Please any advice.
> >
> >
> > With best regard,
> > Heesoon Sheen
> >
> >
> >
> > ===== EM models for the G4Region DefaultRegionForTheWorld ======
> > [G4] eBrem : Emin= 0.000e+00 eV Emax=
> 1.0e+00
> > GeV
> > [G4] eBremRel : Emin= 1.000e+00 GeV Emax=
> > 1.000e+02 TeV
> > [G4] The Object RTVPhantom is attached to the interfileReader Source
> Voxel
> > Reader.
> > [G4] Header read from 'data/DtestHeart_atn_1.h33'
> > [G4] Data file name 'data/DtestHeart_act_1.bin'
> > [G4] Nb of planes: 64
> > [G4] Nb of pixels per plane: 128 128
> > [G4] Pixel size: 6.250e+00 6.250e+00
> > [G4] Slice thickness: 6.250e+00
> > [G4] Matrix size: 8.000e+02 8.000e+02
> > [G4] Data type: UNSIGNED INTEGER
> > [G4]
> > [G4] Voxel reader ----------> number of voxels : 0
> > [G4] total activity (Bq) : 0.000e+00
> > [G4] position (mm) : 0.000e+00 0.000e+00 0.000e+00
> > [G4] voxel size (mm) : 6.250e+00 6.250e+00 6.250e+00
> > [G4] GateVSourceVoxelReader::UpdateActivities(G4String, G4String) Time is
> > 0.000e+00 cK = 1 p_cK = 0
> > [G4] 0 x 0.000e+00 y 1.000e-02
> > [G4] 1 x 2.000e+00 y 7.000e+00
> > [G4] 2 x 4.000e+00 y 1.000e+00
> > [G4] current time 0.000e+00 current activity 1.000e-02
> > [G4] activity range 9.830e+02 9.830e+02 iRange range1 range2 0
> > 9.830e+02
> > 9.830e+02
> > [G4] Description of Range Translator
> > [G4] Range Translator
> > [G4] Range 0 : imageValue in [ 9.830e+02 , 9.830e+02 ] --->
> > activity (Bq) 1.000e-02
> > [G4] Range 1 : imageValue in [ 9.830e+02 , 9.830e+02 ] --->
> > activity (Bq) 0.000e+00
> > [G4] The Object RTVPhantom is attached to the interfileReader Source
> Voxel
> > Reader.
> > [G4] Header read from 'data/DtestHeart_atn_1.h33'
> > [G4] Data file name 'data/DtestHeart_act_1.bin'
> > [G4] Nb of planes: 64
> > [G4] Nb of pixels per plane: 128 128
> > [G4] Pixel size: 6.250e+00 6.250e+00
> > [G4] Slice thickness: 6.250e+00
> > [G4] Matrix size: 8.000e+02 8.000e+02
> > [G4] Data type: UNSIGNED INTEGER
> > [G4]
> > [*G4] Voxel reader ----------> number of voxels : 0*
> > [G4] total activity (Bq) : 0.000e+00
> > [G4] position (mm) : 0.000e+00 0.000e+00 0.000e+00
> > [G4] voxel size (mm) : 6.250e+00 6.250e+00 6.250e+00
> > [Core-0] End of macro mainMacro.mac
> >
> >
> > ------------------------------
> >
> > _______________________________________________
> > Gate-users mailing list
> > Gate-users at lists.opengatecollaboration.org
> > http://lists.opengatecollaboration.org/mailman/listinfo/gate-users
> >
> > End of Gate-users Digest, Vol 59, Issue 27
> > ******************************************
> >
> _______________________________________________
> Gate-users mailing list
> Gate-users at lists.opengatecollaboration.org
> http://lists.opengatecollaboration.org/mailman/listinfo/gate-users
>
More information about the Gate-users
mailing list