[Gate-users] Bin_GATE

[Pietrzyk, Uwe]

Hi,

did you correctly specify all the relevant parameters in the
Bin_GATE Programm before compiling??

----
// DLS Parameters
#define  N_RINGS               48 // DLS: Number of rings
#define  N_SEG                 95 // DLS: Number of segments (2 N_RINGS - 1)
#define  N_DET                288 // DLS: Detectors per ring
#define  S_WIDTH              144 // DLS: Number of radial sinogram bins
#define  N_RSEC                24 // DLS: Number of resector
#define  N_MODULE               1 // DLS: Number of modules
#define  N_MOD_xy               1 // DLS: Number of tangential modules
#define  N_MOD_z                1 // DLS: Number of axial modules
#define  N_SUBMOD               4 // DLS: Number of submodules
#define  N_SMOD_xy              1 // DLS: Number of tangential submodules
#define  N_SMOD_z               4 // DLS: Number of axial submodules
#define  N_CRYSTAL            144 // DLS: Number of crystals (12x12)
#define  N_CRY_xy              12 // DLS: Number of tangential crystals
#define  N_CRY_z               12 // DLS: Number of axial crystals
#define  MAX_D_RING            47 // DLS: Maximum ring difference
#define  N_PLANES            2304 // DLS: Total number of sinograms
#define  FOV              147.206 // DLS: Width of the FOV (mm)
#define  SLICES_PER_FOV        95 // DLS: Number of slices per FOV
#define  USE_OFFSET             0 // DLS: On/Off use of offset
#define  OFFSET                 0 // DLS: Sets initial sinogram angle
----


Kind regards,

Uwe Pietrzyk

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On 29 Jun 2016, at 13:48, G Cosme <goncalocosme4 at gmail.com<mailto:goncalocosme4 at gmail.com>> wrote:

Dear all,

I am trying to convert .root files to STIR projection data using the Bin_GATE utility provided by the GATE website, although the sinograms obtained don't seem to be correct in the sense that, using STIR's manip_projdata I observe that the sinograms aren't filled in the center, despite the number of coincidences gathered (I've used files from 100 000 coincidences up to 600 000 coincidences).
Reconstructing the images with FBP2D I obtain some random lines which indicates a bad sinogram construction.
I am wondering if this is a problem with the utility Bin_GATE or if it is something I am doing wrong.

Thank you in advance,
Gonçalo Cosme
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