applications of geant4
DESCRIPTION
Applications of Geant4. Geant4 Mini-Tutorial Hebden Bridge 15 September 2007 Joseph Perl, SLAC (mostly stolen from a talk by Makoto Asai). Now simulating PEP beam line as well (-9m < z IP < 9m). BaBar. BaBar at SLAC is the pioneer experiment in HEP in use of Geant4 Started in 2000 - PowerPoint PPT PresentationTRANSCRIPT
Applications of Applications of Geant4Geant4
Geant4 Mini-TutorialGeant4 Mini-TutorialHebden BridgeHebden Bridge
15 September 200715 September 2007Joseph Perl, SLACJoseph Perl, SLAC
(mostly stolen from a talk (mostly stolen from a talk byby
Makoto Asai)Makoto Asai)
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BaBarBaBar BaBar at SLAC is the pioneer experiment in HEP in use of BaBar at SLAC is the pioneer experiment in HEP in use of
Geant4Geant4 Started in 2000Started in 2000 Simulated 5*10Simulated 5*1099 events so far events so far Produced at 20 sites in North America and EuropeProduced at 20 sites in North America and Europe Current average production rate 6.1 x 10Current average production rate 6.1 x 1077 events/week events/week
Now simulating PEP beam line as well (-9m < zIP < 9m)
Courtesy of D.Wright (SLAC)
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Boulby Mine dark matter Boulby Mine dark matter search Prototype search Prototype
SimulationSimulation
Courtesy of H. Araujo, A. Howard, IC London
LXe
GXe
PMT
mirror
source
One High Energy event
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Geant4 for beam Geant4 for beam transportationtransportation
Courtesy of V.D.Elvira (FNAL)
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Kernel I - M.Asai (SLAC)Kernel I - M.Asai (SLAC) 1111Courtesy of S.Incerti (IN2P3/CNRS)
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Chandra X-ray Chandra X-ray observatory, with similar observatory, with similar orbit, experienced orbit, experienced unexpected degradation of unexpected degradation of CCDs CCDs
Possible effects on XMM?Possible effects on XMM?BafflBaffleses
X-ray X-ray detectorsdetectors(CCDs)(CCDs)
MirrorMirrorss
Telescope Telescope tubetube
X-ray Multi-Mirror mission X-ray Multi-Mirror mission (XMM)(XMM) Launch December Launch December
19991999 Perigee 7000 kmPerigee 7000 km apogee 114000 kmapogee 114000 km Flight through the Flight through the
radiation belts radiation belts
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astrophysicsastrophysics--ray burstsray bursts
AGILE GLAST
Typical telescope: Tracker Calorimeter Anticoincidence
conversion electron interactions multiple scattering-ray production charged particle tracking
GLAST
GLAST
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EUSO
Bepi Colombo SWIFT
LISA
Smart-2
ACE
INTEGRAL
Astro-E2
JWSTGAIA
Herschel
Cassini
GLAST
XMM-Newton
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Cou
rtes
y T
. Ers
mar
k, K
TH
Sto
ckho
lm
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X-Ray Surveys of X-Ray Surveys of Asteroids and Asteroids and
MoonsMoons
Induced X-ray line emission:indicator of target composition(~100 m surface layer)
Cosmic rays,jovian electrons
Geant3.21Geant3.21
G4 “standard”G4 “standard”
Geant4 low-EGeant4 low-E
Solar X-rays, e, p
Courtesy SOHO EIT
C, N, O line emissions includedC, N, O line emissions included
ESA Space Environment & Effects Analysis SectionGeant4 in Geant4 in
space sciencespace science
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Bepi Colombo: X-Ray Bepi Colombo: X-Ray Mineralogical Survey of Mineralogical Survey of MercuryMercury
Alfonso Mantero, Thesis, Univ. Genova, 2002
Space Environments Space Environments and Effects Sectionand Effects Section
BepiColomboESA cornerstone mission to Mercury
Courtesy of ESA Astrophysics
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Harald Paganetti
GEANT4 based proton dose calculation in a clinical environment: technical aspects, strategies and challenges
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Screen shots of gMocrenScreen shots of gMocren
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CT-simulation with a Rando phantomExperimental data obtained with TLD LiF dosimeter
CT images used to define the
geometry:
a thorax slice from a Rando
anthropomorphic phantom
Comparison with commercial treatment planning Comparison with commercial treatment planning systemssystems
M. C. Lopes 1, L. Peralta 2, P. Rodrigues 2, A. Trindade 2
1 IPOFG-CROC Coimbra Oncological Regional Center - 2 LIP - Lisbon
Agreement better than 2% between GEANT4 and TLD dosimeters
Comparison of Geant4 Results to EGSnrc andComparison of Geant4 Results to EGSnrc andMeasured Data in Large Field Electron Dose Measured Data in Large Field Electron Dose
DistributionsDistributions
Central axis depth dose curves and dose profiles of 6-21 MeV Primus electron beams Central axis depth dose curves and dose profiles of 6-21 MeV Primus electron beams were measured for a 40x40 cm field and simulated in EGS4 in work presented at the were measured for a 40x40 cm field and simulated in EGS4 in work presented at the First McGill International Workshop in 2004.First McGill International Workshop in 2004.
Those Monte Carlo treatment head and water phantom simulations have now been Those Monte Carlo treatment head and water phantom simulations have now been replicated with EGSnrc and the Geant4 Simulation Toolkit (version 8.2.p01).replicated with EGSnrc and the Geant4 Simulation Toolkit (version 8.2.p01).In each case, as with the original EGS4 simulation, source and geometry have been In each case, as with the original EGS4 simulation, source and geometry have been adjusted to best match simulation results to measurement. adjusted to best match simulation results to measurement.
Geant4 simulations were also shown for case of using the exact same source and Geant4 simulations were also shown for case of using the exact same source and geometry parameters used in the EGSnrc simulations.geometry parameters used in the EGSnrc simulations.
Bruce Faddegon (UCSF), Joseph Perl (SLAC)Bruce Faddegon (UCSF), Joseph Perl (SLAC)Jane Tinslay (SLAC), Makoto Asai (SLAC)Jane Tinslay (SLAC), Makoto Asai (SLAC)
Work supported in part by the U.S. Department of Energy under contract number DE-AC02-76SF00515 and NIH Work supported in part by the U.S. Department of Energy under contract number DE-AC02-76SF00515 and NIH R01 CA104777-01A2.R01 CA104777-01A2.
Monte Carlo Techniques in Radiotherapy delivery and verification:Monte Carlo Techniques in Radiotherapy delivery and verification:Third McGill International WorkshopThird McGill International WorkshopMontreal, May 29 - June 1, 2007Montreal, May 29 - June 1, 2007
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