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0002 |                        medical_linac                    |
0003 +                                                         +
0004 |                        README                           |
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0006 
0007 This application has been developed by the Geant4 users:
0008 *Silvia Pozzi and *Barbara Caccia with the support of ^Carlo Mancini Terracciano
0009 
0010 Past contributros:
0011 $Claudio Andenna, Pablo Cirrone, Alessandro Occhigrossi*. S. Guatelli+
0012 Michela Piergentili with the support of M.G.Pia and Franca Foppiano.
0013 
0014 *Istituto Superiore di Sanita' and INFN Roma, Italy
0015 ^Physics Dep. - Univ. La Sapienza and INFN Roma, Italy
0016 %LNS-INFN Catania, Italy
0017 +University of Wollongong, Autralia
0018 $INAIL DIPIA - ex ISPESL and INFN Roma, gruppo collegato Sanita', Italy
0019 
0020 
0021 ---> A brief description
0022 
0023 The example is a deep update of the previous version for medlinac. The example 
0024 is based on a medical accelerator used in a intercomparison exercise managed 
0025 by working Group6 (Computational Dosimetry) of Eurados network (B.Caccia et 
0026 al. "A model validation scheme for Monte Carlo simulations of a medical linear accelerator: geometrical description and dosimetric data used in the “Linac 
0027 Action”- free download from https://eurados.sckcen.be/sites/eurados/files/uploads/Report-Publications/Reports/2020/EURADOS%20Report%202020-05.pdf).
0028 The medical accelerator is a GE Saturn 43 LINAC. The given description of the 
0029 Saturn 43 LINAC corresponds to an operational mode with an acceleration voltage 
0030 of 12 MV in the photon mode with collimator settings for a 10x10 cm^2 field size 
0031 at standard working distance. Experimental dosimetric data are disposable and 
0032 are related to a cubic water phantom of a 40x40x40 cm3 polymethyl methacrylate 
0033 (PMMA) water tank filled with distilled water. At the front of the phantom, the
0034 thickness of PMMA crossed by the beam is 4 mm (15 mm for the all other walls of 
0035 the phantom). The distance from the source point of the target to the external 
0036 entrance window of the water phantom is 90 cm. 
0037 
0038         The example package contains:
0039 - source files (src, include, macros)
0040 - CMakeLists.txt
0041 - README.txt
0042 - main.cc
0043 
0044 
0045 ---------------------------------------------------------------
0046 ----> 1. Experimental set-up.
0047 
0048 The elements simulated are:
0049 
0050 1 - A source of electrons. The beam direction is along the z axis.
0051 2 - A target
0052 3 - A primary collimator
0053 4 - A vacuum window
0054 5 - A flattening filter
0055 6 - A ion chamber
0056 7 - Secondary movable collimators (jaws)
0057 8 - A cubic phantom filled with water
0058 
0059 --------------------------------------------------------------
0060 ----> 2. How to run the example. 
0061  
0062 The example runs with the run.mac macro file.
0063 
0064 -----------------------------------------------------------------------
0065 ----> 4. The physics
0066 
0067 The PhysicsList class allows the activation of all the physic models 
0068 via the macro file.
0069 The standard electromagnetic option3 model is the default model.
0070 
0071 ------------------------------------------------------------------------
0072 ----> 5. Simulation output 
0073 
0074 The output of the medlinac example is generated by the Geant4 command-based 
0075 scorer doseDeposit.
0076 
0077 ------------------------------------------------------------------------
0078 ----> 6. Main differences with the previous ML2 release.
0079 
0080 Multithreading has been implemented and a real accelerator was used, 
0081 with experimental data for dose profiles and deep percentage dose 
0082 with which to check the results obtained in the simulation.
0083 
0084 ------------------------------------------------------------------------
0085 ----> 7. Contacts
0086 
0087 If you have any questions or wish to notify of updates and/or modification
0088 please contact:
0089         
0090 Silvia Pozzi at silvia.pozzi@iss.it
0091 Barbara Caccia at barbara.caccia@iss.it
0092  
0093 Istituto Superiore di Sanita' and INFN Roma, Italy
0094 Viale Regina Elena 299, 00161 Roma (Italy)
0095