Computed tomography
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== Introduction == This tutorial will based on the DICOM GEANT4 example originally developed by Louis Archambault, Luc Beaulieu and Vincent Hubert-Tremblay. In this example a DICOM file is converted to a simple ASCII file, where the Hounsfield numbers are converted to materials and densities so that it can be used by GEANT4. It also creates a GEANT4 geometry based on the DICOM file information using the '''G4PhantomParameterisation'''. == Setting up the environment == ; Connect to HEP cluster and create folder DICOMFolder in your area <pre style="color: #800000; background-color: #dcdcdc"> ssh -X username@plus1.hep.ucl.ac.uk password: type your password here cd /home/username/ mkdir DICOMFolder cd DICOMFolder </pre> ; Setup your environment <pre style="color: #800000; background-color: #dcdcdc"> source /unix/pbt/software/dev/bin/pbt-dev.sh </pre> == <span style="color:#000080"> How to get the code </span> == ; Copy the code to your working directory and rename it <pre style="color: #800000; background-color: #dcdcdc"> cp -r /unix/pbt/tutorials/basic/DICOM . mv DICOM DICOM_source </pre> == <span style="color:#000080"> How to run the code </span> == ; Inside /home/username/DICOMFolder/ create a directory <pre style="color: #800000; background-color: #dcdcdc"> mkdir DICOM_build </pre> ; To compile the code enter this directory and run cmake and make <pre style="color: #800000; background-color: #dcdcdc"> cd DICOM_build cmake -DGeant4_DIR=/unix/pbt/software/dev /home/username/DICOMFolder/DICOM_source make </pre> ; Run macro run.mac. <pre style="color: #800000; background-color: #dcdcdc"> ./DICOM run.mac </pre> == <span style="color:#000080"> How to analyze data </span> ==
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