1. Exercise 0: installation
Anaphe -- OO Data Analysis using C++ and Python
16 April 2017
Exercise 0: installation
Open a web browser in
Go to GAMOS web page
: search for Geant4  Applications  Medical  GAMOS Or
Go to Download
Register yourself as New User
Get the scripts of GAMOS (right-click and save)
Leave the web browser and go to the terminal window in VMWARE
sh download_scripts
Install it
cd scripts
sh installGamos.sh $HOME/gamos2
It will take a long time, mainly compiling Geant4, so stop it for today (Ctrl C), it is already installed
Pedro Arce
GAMOS primer
Andreas Pfeiffer, CERN/IT-API,

2. Anaphe -- OO Data Analysis using C++ and Python
16 April 2017
Running GAMOS
Type in your terminal:
cd $HOME/gamos/GAMOS.3.1.0
source config/confgamos.sh
source config/confgamos.csh
cd examples/test
To run GAMOS:
gamos test.in
(output will be in gamos.log, errors in gamos_error.log)
edit gamos.log
Pedro Arce
GAMOS primer
Andreas Pfeiffer, CERN/IT-API,

3. Anaphe -- OO Data Analysis using C++ and Python
16 April 2017
Start your example
Create a new directory:
cd ..
mkdir myExample1
Cd myExample1
Copy files from example/test:
cp ../test/test.in .
cp ../test/test.geom .
Pedro Arce
GAMOS primer
Andreas Pfeiffer, CERN/IT-API,

4. Anaphe -- OO Data Analysis using C++ and Python
16 April 2017
Visualising geometry
Edit your input file (phantom.in)
Add one line before ‘/run/beamOn 10’
/control/execute ../../../examples/visVRML2FILE.in
It will produce a VRML file with the geometry (g4_00.wrl) and a VRML file with the geometry and tracks (g4_01.wrl)
To visualise these files, download visualiser (there are many, many VRML visualisers in the web..)
Copy g4_01.wrl to windows
Open this file with 3dexplorer
Pedro Arce
GAMOS primer
Andreas Pfeiffer, CERN/IT-API,

5. Anaphe -- OO Data Analysis using C++ and Python
16 April 2017
Visualise histograms
Use ROOT software
Create some histograms
Add one line before ‘/run/beamOn 10’
/gamos/userAction GmTrackDataHistosUA
Open the file. Type:
root GmTrackDataHistosUA.root
new TBrowser
Select ‘ROOT Files’  ‘GmTrackDataHistosUA.root’  any histogram… (click twice with left-button)
Pedro Arce
GAMOS primer
Andreas Pfeiffer, CERN/IT-API,