Pedro Arce GAMOS primer 1

Exercise 0: installation

Open a web browser in

Go to GAMOS web page

http://www.google.com : search for Geant4 Applications Medical GAMOS

Or http://fismed.ciemat.es/GAMOS

Go to Download

Register yourself as New User

Get the scripts of GAMOS.3.1.0 (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 2

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 3

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 4

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 5

Visualise histograms

Use ROOT software

Create some histogramsAdd 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)