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This is a tutorial about applications of GEANT4 to medical physics. The GEANT4 is installed on the HEP Linux cluster at UCL. You will need an account on that cluster to be able to use this software, run example tutorials and create your own applications.
This is a tutorial about applications of GEANT4 to medical physics. The GEANT4 is installed on the HEP Linux cluster at UCL. You will need an account on that cluster to be able to use this software, run example tutorials and create your own applications.
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== <span style="color:#000080"> Accounts and Registration </span> ==
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== <span style="color:#000080"> Accounts and Discussion forum </span> ==
* Getting a computing account
* Getting a computing account
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Apply for a computing account on the HEP Linux cluster by sending e-mail to [mailto:support@hep.ucl.ac.uk HEPComputingSupport]. In your e-mail you have to state the reason for your application (e.g. medical physics student who will use GEANT4 on the HEP cluster).
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Apply for a computing account on the HEP Linux cluster by sending e-mail to UCL HEP Computing Support. In your e-mail you have to state the reason for your application (e.g. medical physics student who will use GEANT4 on the HEP cluster).
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You will receive an e-mail from the HEP computing support with your ''username'' and ''password''. Now you can log in to the HEP cluster “plus1” via  ssh ''username''@plus1.hep.ucl.ac.uk. Your personal area will be at /home/''username''/.  
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You will receive an e-mail from the HEP computing support with your ''username'' and ''password''. Now you can log in to the HEP cluster plus1 via  ssh ''username''@plus1.hep.ucl.ac.uk. Your personal area on plus1 cluster will be at /home/''username''/.
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* Where to get help
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* Discussion about the tutorials 
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You can write to the discussion forum.
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You can write to the discussion forum by clicking the <span style="color:#0000ff"> discussion </span> tab at the top of the page.
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Useful help links.
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== <span style="color:#000080"> The basics of GEANT4 </span> ==
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== span style="color:#000080"> The basics of GEANT4 </span> ==
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GEANT4 is a toolkit for simulating the passage of particles through matter. You can use GEANT4 by creating your own simulation applications using the available GEANT4 tools.  
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----
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GEANT4 is a toolkit for simulating the passage of particles through matter. The user creates his/her own simulation application using GEANT4 tools. The tools are base classes. There are eight base classes. 
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* Three classes are mandatory 
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* [[Introduction to GEANT4]] will help you understand the basics of GEANT4 and the necessary ingredients to write your own application. 
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* Useful links:
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** [http://geant4.web.cern.ch/geant4/UserDocumentation/UsersGuides/ForApplicationDeveloper/html/ Geant4 User's Guide for Application Developers]
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** [http://geant4.web.cern.ch/geant4/G4UsersDocuments/UsersGuides/PhysicsReferenceManual/html/PhysicsReferenceManual.html Physics Reference Manual]
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** [http://www-geant4.kek.jp/Reference/10.00/index.html GEANT4 Classes]
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** [http://hypernews.slac.stanford.edu/HyperNews/geant4/cindex GEANT4 hypernews]
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** [http://www-geant4.kek.jp/LXR/ Geant4 Cross Reference]
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** [http://geant4.web.cern.ch/geant4/UserDocumentation/UsersGuides/FAQ/html/index.html Frequently Asked Questions]
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; G4VUserDetectorConstruction
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== <span style="color:#000080"> Data analysis software </span> ==
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: Describe the experimental setup, geometry and materials
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; G4VUserPhysicsList
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: Define particles, physics processes and range cuts
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; G4UserPrimaryGeneratorAction
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: Describe particle source, source dimensions, initial position, energy spectrum, angular distributions
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* The rest are optional
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These tutorials use ROOT to analyse data. Useful links:
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* [http://root.cern.ch/drupal/content/root-users-guide-534 ROOT User's Guide]
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* [http://root.cern.ch/root/html534/guides/primer/ROOTPrimer.html ROOT Primer]
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* [http://root.cern.ch/root/html/tutorials/ ROOT tutorials]
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; G4UserRunAction
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Similarly, data can be analysed using MATLAB. This is a link to interactive introduction to MATLAB:
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: Define and store histograms
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* [http://www.see.ed.ac.uk/teaching/courses/matlab/ MATLAB introduction]
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; G4UserEventAction
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: Event selection and analysis of simulation data
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; G4UserStackingAction
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: Customize priority of tracks
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; G4UserTrackingAction
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: Decide whether a trajectory should be stored or not
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; G4UserSteppingAction
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: Kill, suspend, postpone a track
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You can create your own classes which are derived from the base classes. All of them should be registered with the G4RunManager. In function main() which is the skeleton of your simulation code you instantiate G4RunManager and notify it of your mandatory and optional classes.
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== <span style="color:#000080"> Basic tutorials </span> ==
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== span style="color:#000080"> Basic tutorials </span> ==
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This section includes several basic tutorials:
This section includes several basic tutorials:
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* [[Monoenergetic photon pencil beam]] is a simple code which shows the dose distribution in water along the incident monoenergetic photon beam.  
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* [[Monoenergetic photon pencil beam]] is a simple code which shows the dose deposition in water along the incident monoenergetic photon beam.  
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* [[Monoenergetic proton pencil beam]] is a simple code which shows the dose distribution in water along the incident monoenergetic proton beam.  
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* [[Monoenergetic proton pencil beam]] is a simple code which shows the dose deposition in water along the incident monoenergetic proton beam.  
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* [[Proton beam with realistic geometry]] is a more complex code with realistic geometry of the proton beam. It shows the dose distribution in water along the beam. There are two options for the beam geometry:
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* [[Proton beam with realistic geometry]] is a simple code with realistic geometry of the proton beam. The primary particles are generated with initial energy, position and direction described by Gaussian distributions. Computed is the dose deposition in water along the beam.  
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** Gaussian beam profile
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* [[Several proton beams with spread out Bragg peaks]] is a simple code which shows the dose deposition in water from several incident monoenergetic proton beams.   
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** Beam profile from phase space files
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* [[Electron beam using phase-space files]] is a simple code which shows the dose deposition in water along the incident electron beam using phase-space data files.
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* [[Several proton beams with spread out Bragg peaks]] is a complex code which shows the dose distribution in water with several incident monoenergetic proton beams.   
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== span style="color:#000080"> Advanced tutorials </span> ==
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== <span style="color:#000080"> Advanced tutorials </span> ==
This section includes several advanced tutorials:
This section includes several advanced tutorials:
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* [[Cherenkov emission]]
 
* [[Computed tomography]]
* [[Computed tomography]]
* [[High-precision dosimetry]]
* [[High-precision dosimetry]]
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== span style="color:#000080"> Installing GEANT4 locally </span> ==
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== <span style="color:#000080"> Installing GEANT4 locally </span> ==
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* [[Downloading the Geant4 package]]
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* [[Linux terminal]]
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* [[Installing Geant4]]
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* [[Updating Geant4]]
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* [[Running an example]]

Latest revision as of 10:21, 26 May 2016

Contents

Introduction

This is a tutorial about applications of GEANT4 to medical physics. The GEANT4 is installed on the HEP Linux cluster at UCL. You will need an account on that cluster to be able to use this software, run example tutorials and create your own applications.

Accounts and Discussion forum

  • Getting a computing account

Apply for a computing account on the HEP Linux cluster by sending e-mail to UCL HEP Computing Support. In your e-mail you have to state the reason for your application (e.g. medical physics student who will use GEANT4 on the HEP cluster).

You will receive an e-mail from the HEP computing support with your username and password. Now you can log in to the HEP cluster plus1 via ssh username@plus1.hep.ucl.ac.uk. Your personal area on plus1 cluster will be at /home/username/.

  • Discussion about the tutorials

You can write to the discussion forum by clicking the discussion tab at the top of the page.

The basics of GEANT4

GEANT4 is a toolkit for simulating the passage of particles through matter. You can use GEANT4 by creating your own simulation applications using the available GEANT4 tools.

Data analysis software

These tutorials use ROOT to analyse data. Useful links:

Similarly, data can be analysed using MATLAB. This is a link to interactive introduction to MATLAB:

Basic tutorials

This section includes several basic tutorials:

Advanced tutorials

This section includes several advanced tutorials:

Installing GEANT4 locally

Personal tools