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0005 Geant4 - AuNP example
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0008 README file
0009 ----------------------
0010
0011 CORRESPONDING AUTHOR
0012
0013 Should you have any enquiry, please do not hesitate to contact:
0014 D. Sakata
0015 National Institute of Radiological Science
0016 * e-mail:sakata.dousatsu@qst.go.jp, dosatsu.sakata@cern.ch
0017
0018 ---->0. INTRODUCTION.
0019
0020 The AuNP example simulates the track-structure of electrons in microscopic gold volume.
0021 The example also simulates that in liquid water medium surrunding the gold volume.
0022
0023 This example is provided by the Geant4-DNA collaboration.
0024
0025 These processes and models are further described at:
0026 http://geant4-dna.org
0027
0028 Any report or published results obtained using the Geant4-DNA software shall
0029 cite the following Geant4-DNA collaboration publications:
0030 Phys. Med. 31 (2015) 861-874
0031 Med. Phys. 37 (2010) 4692-4708
0032
0033 We also suggest these other references related to this example:
0034 Phys. Med. 63 (2019), 98-104
0035 Med. Phys. 45 (2018), 2230-2242
0036 J. App. Phys. 120 (2016), 244901
0037
0038 The AuNP example simulates the track-structure of electrons
0039 in microscopic gold volume.The example also simulates that
0040 in liquid water medium surrunding the gold volume.
0041
0042 The details of the physics models are described in the following paper:
0043 J. Appl. Phys. 120 (2016) 244901
0044
0045 The details of the application are described in the following paper:
0046 Phys. Med. 63 (2019) 98-104
0047 Med. Phys. 45(5) (2018) 2230-2242
0048
0049 ---->1. GEOMETRY SET-UP.
0050
0051 The geometry is a sphere (World) made of liquid water containing a smaller
0052 sphererical target volume of Gold.
0053
0054 The default geometry is constructed in DetectorConstruction class.
0055
0056 --->2. PHYSICS LIST
0057
0058 The default physics list is constructed in PhysicsList class.
0059
0060 --->3. DETECTOR RESPONSE : Scorers
0061
0062 This scorer computes following quantities.
0063
0064 - the energy spectra of secondary particles generated in AuNP
0065 - the energy spectra of secondary particles at AuNP surface
0066 - the energy spectra of secondary particles generated in liquid water
0067 - the energy deposit and the position in the absorber surrunding AuNP
0068
0069 Run::RecordEvent(), called at end of event, collects informations
0070 event per event from the hits collections, and accumulates statistic for
0071 RunAction::EndOfRunAction().
0072
0073 In multi-threading mode the statistics accumulated per workers is merged
0074 to the master in Run::Merge().
0075
0076 The information is scored in a ROOT ntuple file AuNP.root.
0077
0078 ---->4. HOW TO RUN THE EXAMPLE
0079
0080 This example shows:
0081 - how to use the Geant4-DNA processes for gold
0082 - how to count and save occurrences of processes
0083
0084 The code can be compiled with cmake.
0085 It works in MT mode.
0086
0087 Two user macro files can be used:
0088 ./AuNP AuNP.mac
0089
0090 ---->5. SIMULATION OUTPUT AND RESULT ANALYSIS
0091
0092 The output results consists in an AuNP.root file, containing for the run:
0093 - the energy spectra of secondary particles generated in AuNP
0094 - the energy spectra of secondary particles at AuNP surface
0095 - the energy spectra of secondary particles generated in liquid water
0096 - the energy deposit and the position in the absorber surrunding AuNP
0097
0098 This file can be easily analyzed using for example the provided ROOT macro
0099 file plot.C; to do so :
0100 * be sure to have ROOT installed on your machine
0101 * be sure to be in the microdosimetry directory
0102 * launch ROOT by typing root
0103 * under your ROOT session, type in : .X plot.C to execute the macro file
0104 * alternatively you can type directly under your session : root plot.C
0105
