NANO5 L. Quintieri (Art. 23)
|
|
- Quentin Dixon
- 5 years ago
- Views:
Transcription
1 NANO5 L. Quintieri (Art. 23) 1 NANO5: Description of main objectives NANO5 is a Geant4-related R&D project. It was approved as part of INFN scientific program of Technology Research in September 2008, with start in January It gathers an international team of collaborating scientists at various institutes in Europe, Asia, Northern and Southern America. Geant4 1), 2) is an object oriented toolkit for the simulation of particle interactions with matter. It provides advanced functionalities for all the typical domains of detector simulation: geometry and material modeling, description of particle properties, physics processes, tracking, event and run management, user interface and visualization. Nevertheless, new experimental requirements have emerged in the recent years, which challenge the conventional scope of major Monte Carlo transport codes like Geant4. Research fields as nano-dosimetry, nanotechnology-based detectors, radiation effects on components in space and at high luminosity colliders, nuclear power, plasma physics etc. have shown the need of new methodological approaches to radiation transport simulation along with new physics functionalities in Geant4. The NANO5 project investigates conceptual and technological solutions to extend the current capabilities of the Geant4 toolkit to cope with the new experimental requirements and evaluates whether and how they can be supported by the Geant4 Kernel. In more detail, NANO5 investigates the possibility of introducing into Geant4 new physics functionality and implementing new methodological approach for radiation transport simulation in order to satisfy mainly the following requirements: To make possible to perform simulation at different scale in the same experimental environment (condensed-random-walk and discrete methods). In fact, in realistic cases, small-scale systems are often embedded in larger scale ones (i.e micro-component of an equipment inside an HEP experiment, cellular ans sub-cellular aggregate in biological system, etc). To exploit Monte Carlo and deterministic transport methods in the same simulation environment in case where performance issues are critical (nuclear reactor design). Developing of innovative design solutions in software architecture of Geant4 Kernel and consequent evaluation of their implications in terms of computational performances and quality assurance. 1.1 New Architectural Design Approach The main feature of the new software architectural design, at the present under study with NANO5, is the minimalist approach based on the policy class design, whose potentialities have been explored in detail by Andrei Alexandrescu 3). In brief, policy-based class design promotes to assemble a
2 class with complex behavior out of many little classes (called policies), each of which takes care of only one behavioral or structural aspect. A policy class is a template parameter used to transmit behavior. As the name suggests, a policy establishes an interface pertaining to a specific issue: it is possible to implement policies in various ways as long as the policy interface is respected. Because it is possible to mix and match policies, we can achieve a combinatorial set of behaviors by using a small core of elementary components. Alexandrescu description of policy classes suggests that their power is derived essentially from granularity and orthogonality. 2 Main activities performed at Frascati The work developed at Frascati has been essentially devoted to accomplish the following two tasks: 1. Application of the policy based design to implement the Photon Physics in Geant4 and study of the consequent effects it has on computational performance and quality assurance. 2. Set-up of an exhaustive data library as base of software developments to improve the PIXE (Particle Induced X-ray Emission) simulation in Geant4. The details of the given contributions are better explained in the following paragraphs. 2.1 New Photon Interaction Models implementation As start-up point, in order to test the implementation of the new architectural design, we focused on the electromagnetic physics package. In particular, a pilot project is currently in progress in the domain of photon interactions (Compton and Rayleigh scattering, photoelectric effect and photon conversion), with the aim of implementing the current Geant4 physics models in terms of the architectural design briefly described in 1.1. Performance measurements as well as first-hand evaluations of the capabilities and drawbacks of the policy-based design are, finally, studied. We have redesigned the generic photon process in such a way that it acts as a host class, deprived of intrinsic physics fucnctionality. Physics behavior is acquired through policy classes, respectively responsible for cross section and final state generation (passed as concrete classes). In this new approach, cross section and final state policies are orthogonal (that means independently implemented and computed). The main advantages of this approach are: Flexible configuration of processes at granular level. Transparency of physics Performance optimization for computationally intensive use cases Effortless Verification & Validation Figure 1 shows an example of the prototype design of photon interactions, applied to the Comptpn Scattering. Frascati has given a special contribution on the implementation (according the new architectural design) and consequent testing of the pair-production process in the Standard flavor 1. Thanks to the new design, we could appreciate an improved transparency of physics models, that is, in fact, exposed at a fine-grained level. 1 All photon interactions are implemented in Geant4 at least in 3 modeling variants, which are identified as Standard, Library-based and Penelope
3 NANO5 AT LNF : Focussed on condensed-discrete transport agnetic Physic (policy-based design), Estimation of the consequent ce (still in progress), Software verification and validation (V&V) processes for use UML diagram of the new EM Physics design G4CrossSectionDataLib, G4GeneratorComptonDataLib G4ComptonDataLib TCrossSection TGenerator G4TRDPhotonProcess G4CrossSectionComptonPenelope,G4GeneratorComptonPenelope e.g. Compton scattering G4CrossSectionComptonStandard,G4GeneratorComptonDataLib G4CrossSectionComptonStandard,G4GeneratorComptonStandard G4ComptonStandardDataLib etc. G4ComptonPenelope G4ComptonStandard malist approach: a generic process acts as a host class, which is deprived of intrinsic red through policy classes, respectively responsible for cross section and final state cess is independent from the model that determines the cross-section and final state Figure 1: Main Feature of the Policy-Based prototype, illustrated for Compton Scattering Geant4 Standard EM Physics : Pair-Production Cross-section old implementation versus new implemetation compared with NIST data Berylium cpu time [s] avg % diff over the energy range between NIST data and new implementation is 22% (with 6% at 1.5 MeV) e+06 1e+07 1e+08 new implementation NIST old implementation ttering (40 kev photon ) on several atoms Performance gain: ~30% 10 Preliminary performance measurements in 1 a few simple cases of photon interactions indicate a gain of the order of 30% in 0.1 avg % diff over the energy range between NIST data and new implementation is 5 % computational speed with respect to equivalent physics 0.01 implementations in the current Geant4 design scheme; Geant4 Standard EM Physics : Pair-Production Cross-section old implementation versus new implemetation compared with NIST data Copper e+06 1e+07 1e+08 new implementation NIST old implementation Figure 2: Photon conversion cross-section validation with respect to NIST reference data for Be and Cu Validation of the implemented models The plots in Fig. 2 refer to the case of photon conversion cross-section comparison with respect to NIST reference data for two cases: Be and Cu. Discrepancies between the implementation in Geant4 9.1 standard electromagnetic package and the Official User Documentation of the crosssection model for photon conversion have been identified and reported to the maintainers of the original Geant4 implementations. The observed model behavior is shown in Fig. 3 (on the left). According to the Geant4 Physics Manual, above 100 GeV the cross-section for photon conversion, based on the Bethe-Heitler model, should be constant. The agility of NANO5 electromagnetic physics design allowed a quick re-implementation of the cross-section computation consistent with the specifications of Geant4 Physics Reference Manual. Other implementations of this cross section based on alternative models documented in literature are in progress; for instance, according to work reported in reference 4) the cross section above 1 TeV is expected to fall as a function
4 of energy. Implementations by Geant4 standard electromagnetic group have been announced in Geant4 development plans GeV GeV e+06 1e+07 G4BetheHeitler Current version of Geant e+06 1e+07 G4CrossSectionGammaConversionStandard Nano5 according Reference Manual Figure 3: Differences between the implementation in Geant4.9.1 standard electromagnetic package and the User Documentation of the cross section calculation for photon conversion Effects of the new architectural design on the computational performance and quality assurance The testing of basic physics components (like atomic cross sections or features of the final state models) is greatly facilitated wrt to the current Geant4 version: being associated with low level objects like policy classes, they can be verified and validated independently, while in the current design scheme a full-scale Geant4 based application is necessary to study even low-level physics entities. The gain in simplification of the physics testing code has been estimated as of approximately two orders of magnitude in terms of reduction of instruction lines to execute 2, while the computational resources needed for the test operation have been reduced dramatically. These achievements are relevant to the quality assurance of Geant4 physics. Preliminary results of the electromagnetic physics pilot project indicate a performance improvement associated with the policy-based design. In table 1 we report the performance comparison (in terms of cpu time) between the Geant4.9.1 and NANO5 design for the estimation of the final status in a simple test for Compton scattering of photon with energy 40 kev on several atoms. Preliminary performance measurements in a few simple cases of photon interactions indicate a gain of the order of 30% in computational speed with respect to equivalent physics implementations in the current Geant4 design scheme. Other tests are in progress to check if the computational performance are affected also in all the other Photon Physics Models that have been reimplemented, up to now. 2 The test for comparison of basic Geant4 electromagnetic physics features against NIST Physical Reference Data requires more than 4000 lines of code in a fully scale Geant4 based application. Equivalent tests for the physics parameters related to photons can be performed through simple tests, consisting of few tens of lines only and running very fast on a laptop computer.
5 Table 1: CPU time[s] for estimation of final status for Compton scattering of 40 kev Photons on several atoms (Penelope). Atom Policy-based Geant4 9.1 Gain design C % Si % Cu % W % 40 kev, 10 6 events, Intel Core2 Duo Processor E6420, 2.13 GHz, 4GB RAM 2.2 Developments on PIXE Simulation with Geant4 At the present time Geant4 does not provide adequate capabilities for the simulation of PIXE in realistic case, as documented in 5). For this reason, the capabilities of the Geant4 toolkit have been extended, in the frame of NANO5, by enabling the generation of PIXE associated with K, L and M shells for protons and α particles, providing a variety of cross section models. In this context, an extensive ionisation cross section data library has been created as support of the development process. This extended data library represents essentially the main contribution given by Frascati for PIXE improvement in Geant4. The adopted data-driven strategy and the software design improve the computational performance over previous Geant4 models. The validity of the implemented models has been quantitatively estimated with respect to experimental data, as shown in 5) The PIXE data Library The PIXE simulation in Geant4 identifies three main fields with associated responsibilities: the hadron ionization process, the creation of a vacancy in the shell occupancy resulting from ionisation, the deexcitation of the ionised atom with the associated generation of X-rays. The simulation of PIXE concerns a variety of experimental applications, that require the capability of calculating ionisation cross sections over an extended energy range: from a few MeV typical of material analysis applications to hundreds MeV or GeV range of astrophysical applications. Various theoretical and empirical models are available in literature to describe ionisation cross sections for different interacting particles, as well as compilations of experimental data. The current software prototype, developed by the NANO5 collaboration, has adopted the strategy of providing an extensive collection of ionisation cross section models as a function of element, atomic (sub-)shell, and incident particle kinetic energy. The cross sections for ionization of K, L and M shell by protons and α particles have been tabulated and assembled in an extensive data library (PAIX); the values at a given energy are calculated by interpolation. Cross sections have been derived from theoretical calculations based on the EPCSSR method, also including variants like Hartree-Slater, United Atom and high energy corrections, and from a variety of empirical models based on experimental data collections. The tabulations corresponding to theoretical calculations span the energy range between 10 kev and 10 GeV; empirical models are tabulated consistently with their energy range of validity. The adopted data-driven approach optimizes performance speed and offers flexibility for chosing a cross section model.
6 A collaboration with RSICC (Radiation Safety Information Computational Center) of Oak Ridge National Laboratories, is actually in progress, under the direct supervision of Frascati, in order to assemble and distribute to the whole scientific community the PAIX data libraries. 3 Conference Talks 1. L. Quintieri, Inter-Comparison and Validation of Geant4 Photon Interaction Models, Poster Session on Computing and Software for Experiments, (CHEP 2009) Orlando, Florida. 2. L. Quintieri, Research in Geant4 electromagnetic physic design and its effects on computational performance and quality assurance, (CHEP 2009), Orlando, Florida. 4 Publications in 2009 Journals 1. M. G. Pia et al., IEEE Trans. Nucl. Sci., 56, 3614 (2009). Conference Proceedings 1. M. Augelli et al., Inter-Comparison and Validation of Geant4 Photon Interaction Models Proceedings of the Nuclear Science Symposium and Medical Imaging Conference 2009, Orlando, Florida. 2. M. Augelli et al., Geant4-related R&D for new particle transport methods, Proceedings of the Nuclear Science Symposium and Medical Imaging Conference 2009, Orlando, Florida. 3. M. Augelli et al., Research in Geant4 electromagnetic physics design, and its effects on computational performanc and quality assurance, Proceedings of the Nuclear Science Symposium and Medical Imaging Conference 2009, Orlando, Florida. 4. M. G. Pia et al., New models for PIXE simulation with Geant4, Proceedings of CHEP (Computing in High Energy Physics) M. G. Pia et al., Design and performance evaluations of generic programming techniques in a R&D prototype of Geant4 physics, Proceedings of CHEP (Computing in High Energy Physics) M. G. Pia et al., R&D on co-working transport schemes in Geant4, Proceedings of CHEP (Computing in High Energy Physics) M. G. Pia et al., R&D for co-working condensed and discrete transport methods in Geant4 kernel, Proc. Int. Conf. on Mathematics, Computational Methods & Reactor Physics (M&C 2009), New York, References 1. S. Agostinelli et al., Nucl. Instr. and Meth. A 506, 250 (2003). 2. J. Alliso, et al, IEEE Trans. Nucl. Sci. 53, 270 ( 2006). 3. A. Alexandrescu, Modern C++ Design: Generic Programming and Design Patterns Applied, Addison-Wesley (E), February S. R. Klein, Radiation Physics and Chemistry, 75, 696 (2006). 5. M. G. Pia et al., IEEE Trans. Nucl. Sci. 56, 3614 (2009).
Geant4 Simulation of Very Low Energy Electromagnetic Interactions
Geant4 Simulation of Very Low Energy Electromagnetic Interactions R. Capra 1, Z. Francis 2, S. Incerti 3, G. Montarou 2, Ph. Moretto 3, P. Nieminen 4, M. G. Pia 1 1 INFN Sezione di Genova; I-16146 Genova,
More informationGeant4 Low Energy Electromagnetic Physics
Geant4 Low Energy Electromagnetic Physics S. Chauvie, S. Guatelli, V. Ivanchenko, F. Longo, A. Mantero, B. Mascialino, P. Nieminen, L. Pandola, S. Parlati, L. Peralta, M. G. Pia, M. Piergentili, P. Rodrigues,
More informationGeant4 Monte Carlo code application in photon interaction parameter of composite materials and comparison with XCOM and experimental data
Indian Journal of Pure & Applied Physics Vol. 54, Februray 2016, pp. 137-143 Geant4 Monte Carlo code application in photon interaction parameter of composite materials and comparison with XCOM and experimental
More informationEUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH GEANT4 LOW ENERGY ELECTROMAGNETIC MODELS FOR ELECTRONS AND PHOTONS
EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH CERN-OPEN-XX 19 August 1999 GEANT4 LOW ENERGY ELECTROMAGNETIC MODELS FOR ELECTRONS AND PHOTONS OPEN-99-034 18/08/99 J. Apostolakis 1,S.Giani 1, M. Maire 5,P.Nieminen
More informationRadiobiology, nanotechnology, radiation effects on components. S. Chauvie (Cuneo Hospital and INFN Genova) Maria Grazia Pia (INFN Genova)
for microdosimetry Radiobiology, nanotechnology, radiation effects on components S. Chauvie (Cuneo Hospital and INFN Genova) Maria Grazia Pia (INFN Genova) Workshop: La radiobiologia dell INFN Trieste,
More informationTest & Analysis Project
χ 2 N-S =23.2 ν=15 - p=0.08 χ 2 N-L =13.1 ν=20 - p=0.87 Test & Analysis Project Statistical Testing Physics Testing http://www.ge.infn.it/geant4/analysis/tanda on behalf of the T&A team Geant4 Workshop,
More informationComparative Analysis of Nuclear Cross Sections in Monte Carlo Methods for Medical Physics Applications
Comparative Analysis of Nuclear Cross Sections in Monte Carlo Methods for Medical Physics Applications Christopher T. Myers 1 Georgia Institute of Technology Bernadette L. Kirk 2 Luiz C. Leal 2 Oak Ridge
More informationThe impact of Monte Carlo simulation: a scientometric analysis of scholarly literature
Joint International Conference on Supercomputing in Nuclear Applications and Monte Carlo 21 (SNA + MC21) Hitotsubashi Memorial Hall, Tokyo, Japan, October 17-21, 21 The impact of Monte Carlo simulation:
More informationValidation and verification of Geant4 standard electromagnetic physics
Validation and verification of Geant4 standard electromagnetic physics J Apostolakis 1, A Bagulya 5, S Elles 4, V N Ivanchenko 1,2,8, J Jacquemier 4, M Maire 4,6, T Toshito 3,7 and L Urban 6 1 CERN, 1211
More informationThe GEANT Low Energy Compton Scattering (GLECS) Package for use in Simulating Advanced Compton Telescopes
The GEANT Low Energy Compton Scattering (GLECS) Package for use in Simulating Advanced Compton Telescopes R. Marc Kippen Space and Remote Sensing Sciences Group, Los Alamos National Laboratory NIS-2, MS
More informationRadiation Shielding Simulation For Interplanetary Manned Missions
Radiation Shielding Simulation For Interplanetary Manned Missions S. Guatelli1, B. Mascialino1, P. Nieminen2, M.G. Pia1 Credit: ESA Credit: ESA 1 INFN Genova, Italy ESA-ESTEC, The Netherlands 2 IPRD 06
More informationRadiation Shielding Simulation For Interplanetary Manned Missions
Radiation Shielding Simulation For Interplanetary Manned Missions S. Guatelli 1, B. Mascialino 1, P. Nieminen 2, M.G. Pia 1 Credit: ESA 1 INFN Genova, Italy 2 ESA-ESTEC, The Netherlands Credit: ESA IPRD
More informationEUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH GEANT4 SIMULATION OF ENERGY LOSSES OF SLOW HADRONS
EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH 2 September 1999 GEANT4 SIMULATION OF ENERGY LOSSES OF SLOW HADRONS V.N. Ivanchenko Budker Institute for Nuclear Physics, Novosibirsk, Russia S. Giani, M.G. Pia
More informationGeant4 Physics Validation
Pablo Cirrone Giacomo Cuttone Francesco Di Rosa Susanna Guatelli Alfonso Mantero Barbara Mascialino Luciano Pandola Andreas Pfeiffer MG Pia Pedro Rodrigues Giorgio Russo Andreia Trindade Valentina Zampichelli
More informationTRAINING IN EXTERNAL DOSIMETRY CALCULATIONS WITH COMPUTATIONAL CODES
TRAINING IN EXTERNAL DOSIMETRY CALCULATIONS WITH COMPUTATIONAL CODES S. MORATÓ, A.BERNAL, A. QUEROL, A. ABARCA, C. GÓMEZ-ZARZUELA, R.MIRÓ, G.VERDÚ Institute for Industrial, Radiophysical and Environmental
More informationSimulation for LHC Radiation Background
Simulation for LHC Radiation Background Optimisation of monitoring detectors and experimental validation M. Glaser1, S. Guatelli2, B. Mascialino2, M. Moll1, M.G. Pia2, F. Ravotti1 1 CERN, Geneva, Switzerland
More informationGeant4 simulation for LHC radiation monitoring
University of Wollongong Research Online Faculty of Engineering and Information Sciences - Papers: Part A Faculty of Engineering and Information Sciences 2006 Geant4 simulation for LHC radiation monitoring
More informationQuantitative Assessment of Scattering Contributions in MeV-Industrial X-ray Computed Tomography
11th European Conference on Non-Destructive Testing (ECNDT 2014), October 6-10, 2014, Prague, Czech Republic More Info at Open Access Database www.ndt.net/?id=16530 Quantitative Assessment of Scattering
More informationElectromagnetic Physics
Electromagnetic Physics http://cern.ch/geant4 The full set of lecture notes of this Geant4 Course is available at http://www.ge.infn.it/geant4/events/nss2004/geant4course.html Electromagnetic packages
More informationPhysics methods for the simulation of photoionisation
Physics methods for the simulation of photoionisation T. Basaglia 1, M. Batic 2, M. C. Han 3, G. Hoff 4, C. H. Kim 3, H. S. Kim 3, M. G. Pia 5, P. Saracco 5 1 CERN 2 Sinergise, Ljubljana, Slovenia 3 Hanyang
More informationCHARACTERIZATION OF A RADIATION DETECTOR FOR AIRCRAFT MEASUREMENTS
CHARACTERIZATION OF A RADIATION DETECTOR FOR AIRCRAFT MEASUREMENTS Leonardo de Holanda Mencarini 1,2, Claudio A. Federico 1,2 and Linda V. E. Caldas 1 1 Instituto de Pesquisas Energéticas e Nucleares IPEN,
More informationEnergy resolution and absolute detection efficiency for LSO crystals: a comparison between Monte Carlo simulation and experimental data
Energy resolution and absolute detection efficiency for LSO crystals: a comparison between Monte Carlo simulation and experimental data Harold Rothfuss a,b, Larry Byars c, Michael E. Casey a, Maurizio
More informationTHE application of particle induced X-ray emission
Recent Developments on PIXE Simulation with Geant4 M. G. Pia, G. Weidenspointner, M. Augelli, L. Quintieri, P. Saracco, M. Sudhakar, and A. Zoglauer arxiv:0912.1713v1 [physics.comp-ph] 9 Dec 2009 Abstract
More informationSimulation of 4π HPGe Compton-Suppression spectrometer
Vol. 9(2), pp. 13-19, 30 January, 2014 DOI: 10.5897/IJPS2013.4075 ISSN 1992-1950 2014 Academic Journals http://www.academicjournals.org/ijps International Journal of Physical Sciences Full Length Research
More informationCarbohydrate based materials for gamma radiation shielding
Journal of Physics: Conference Series PAPER OPEN ACCESS Carbohydrate based materials for gamma radiation shielding To cite this article: F Tabbakh et al 2015 J. Phys.: Conf. Ser. 611 012015 View the article
More informationA Short Course on Geant4 Simulation Toolkit. Introduction.
A Short Course on Geant4 Simulation Toolkit Introduction http://cern.ch/geant4 The full set of lecture notes of this Geant4 Course is available at http://www.ge.infn.it/geant4/events/nss2003/geant4course.html
More informationRadiation background simulation and verification at the LHC: Examples from the ATLAS experiment and its upgrades
at the LHC: Examples from the ATLAS experiment and its upgrades On behalf of the ATLAS Inner Detector University of Sheffield E-mail: Ian.Dawson@cern.ch The high collision rates at the new energy and luminosity
More informationDetector Simulation. Mihaly Novak CERN PH/SFT
Detector Simulation Mihaly Novak CERN PH/SFT CERN Summer Student Program, 1 August 2017 Foreword This lecture is aimed to offer a simple and general introduction to detector simulation. Geant4 will be
More informationOpenSMOKE: NUMERICAL MODELING OF REACTING SYSTEMS WITH DETAILED KINETIC MECHANISMS
OpenSMOKE: NUMERICAL MODELING OF REACTING SYSTEMS WITH DETAILED KINETIC MECHANISMS A. Cuoci, A. Frassoldati, T. Faravelli, E. Ranzi alberto.cuoci@polimi.it Department of Chemistry, Materials, and Chemical
More informationOn the energy deposition by electrons in air and the accurate determination of the air-fluorescence yield
arxiv:1207.2913v1 [astro-ph.im] 12 Jul 2012 On the energy deposition by electrons in air and the accurate determination of the air-fluorescence yield J. Rosado, P. Gallego, D. García-Pinto, F. Blanco and
More informationShielding of Ionising Radiation with the Dosimetry & Shielding Module
Shielding of Ionising Radiation with the Dosimetry & Shielding Module J. Magill Overview Biological Effects of Ionising Radiation - Absorber dose, Quality or Weighting Factor, Equivalent Dose Attenuation
More informationGeant4 Based Space Radiation Application for Planar and Spherical Geometries
Advances in Applied Sciences 2017; 2(6): 110-114 http://www.sciencepublishinggroup.com/j/aas doi: 10.11648/j.aas.20170206.13 ISSN: 2575-2065 (Print); ISSN: 2575-1514 (Online) Geant4 Based Space Radiation
More informationIntroduction. X-Ray Production and Quality. Fluorescence Yield. Fluorescence X-Rays. Initiating event. Initiating event 3/18/2011
X-Ray Production and Quality Chapter 9 F.A. Attix, Introduction to Radiological Physics and Radiation Dosimetry Introduction Physics of x-ray generation Fluorescence x-rays Bremsstrahlung x-rays Beam quality
More informationGeant4 electromagnetic physics for the LHC and other HEP applications
Geant4 electromagnetic physics for the LHC and other HEP applications Andreas Schälicke on behalf of the Geant4 EM Working Groups DESY, Zeuthen October 18th, CHEP 2010, Taipei, Taiwan A. Schälicke (DESY,
More informationInternational Journal of Scientific & Engineering Research, Volume 5, Issue 3, March-2014 ISSN
316 Effective atomic number of composite materials by Compton scattering - nondestructive evaluation method Kiran K U a, Ravindraswami K b, Eshwarappa K M a and Somashekarappa H M c* a Government Science
More informationDevelopment of a Dosimetric System using Spectrometric Technique suitable for Operational Radiation Dose Measurements and Evaluation
Development of a Dosimetric System using Spectrometric Technique suitable for Operational Radiation Dose Measurements and Evaluation S. Moriuchi, M.Tsutsumi2 and K. Saito2 Nuclear safety technology Center,
More informationSimulation Techniques Using Geant4
IEEE Nuclear Science Symposium and Medical Imaging Conference Short Course Simulation Techniques Using Geant4 Maria Grazia Pia (INFN Genova, Italy) MariaGrazia.Pia@ge.infn.it Dresden, 8 October 2008 http://www.ge.infn.it/geant4/events/nss2008/geant4course.html
More informationValidation of EM Part of Geant4
Validation of EM Part of Geant4 February 22, 2002 @ Geant4 Work Shop Tsuneyoshi Kamae/Tsunefumi Mizuno 1 Purpose and Plan of this Talk We have validated EM processes in Geant4 important for gamma-ray satellite
More informationPhysics 100 PIXE F06
Introduction: Ion Target Interaction Elastic Atomic Collisions Very low energies, typically below a few kev Surface composition and structure Ion Scattering spectrometry (ISS) Inelastic Atomic Collisions
More informationInteraction theory Photons. Eirik Malinen
Interaction theory Photons Eirik Malinen Introduction Interaction theory Dosimetry Radiation source Ionizing radiation Atoms Ionizing radiation Matter - Photons - Charged particles - Neutrons Ionizing
More informationSimulating Gamma-Ray Telescopes in Space Radiation Environments with Geant4: Detector Activation
Simulating Gamma-Ray Telescopes in Space Radiation Environments with Geant4: Detector Activation Andreas Zoglauer University of California at Berkeley, Space Sciences Laboratory, Berkeley, USA Georg Weidenspointner
More informationGEANT4 LOW ENERGY ELECTROMAGNETIC PHYSICS
http://geant4.org 1 GEANT4 LOW ENERGY ELECTROMAGNETIC PHYSICS On behalf of the Geant4 Standard and Low Energy EM Physics working groups Sébastien Incerti (CNRS) & Vladimir Ivantchenko (CERN) Geant4 EM
More informationStudy of the Neutron Sensitivity for the Double Gap RPC of the CMS/LHC by Using GEANT4
Journal of the Korean Physical Society, Vol. 48, No. 1, January 2006, pp. 33 39 Study of the Neutron Sensitivity for the Double Gap RPC of the CMS/LHC by Using GEANT4 J. T. Rhee and M. Jamil Institute
More informationSOME ASPECTS OF MONTE CARLO SIMULATION FOR EFFICIENCY CALIBRATION OF GERMANIUM DETECTORS
ICRM Gamma Spectrometry Workshop Paris, France 23-24 February 2009 SOME ASPECTS OF MONTE CARLO SIMULATION S.Hurtado Universidad de Sevilla SPAIN 1 MONTE CARLO SIMULATION DISADVANTAGES Self-absorption correction
More informationPassage of particles through matter
Passage of particles through matter Alexander Khanov PHYS6260: Experimental Methods is HEP Oklahoma State University September 11, 2017 Delta rays During ionization, the energy is transferred to electrons
More informationThe Compact Muon Solenoid Experiment. Conference Report. Mailing address: CMS CERN, CH-1211 GENEVA 23, Switzerland
Available on CMS information server CMS CR -2018/225 The Compact Muon Solenoid Experiment Conference Report Mailing address: CMS CERN, CH-1211 GENEVA 23, Switzerland 27 September 2018 (v2, 19 November
More informationA Monte Carlo Study of the Relationship between the Time. Structures of Prompt Gammas and in vivo Radiation Dose in.
A Monte Carlo Study of the Relationship between the Time Structures of Prompt Gammas and in vivo Radiation Dose in Proton Therapy Wook-Geun Shin and Chul Hee Min* Department of Radiation Convergence Engineering,
More informationElectromagnetic Physics in Geant4
Electromagnetic Physics in Geant4 Luciano Pandola INFN-LNGS Partially based on presentations by A. Lechner, M.G. Pia, V. Ivanchenko, S. Incerti, M. Maire and A. Howard Part I: EM physics models available
More informationGeant4 and its validation
http://geant4.web.cern.ch/geant4/ Geant4 and its validation Luciano Pandola INFN Gran Sasso and University of L Aquila for the Geant4 Collaboration Siena, May 24 th, 2004 What is? OO Toolkit for the simulation
More informationNeutrino detection. Kate Scholberg, Duke University International Neutrino Summer School Sao Paulo, Brazil, August 2015
Neutrino detection Kate Scholberg, Duke University International Neutrino Summer School Sao Paulo, Brazil, August 2015 Sources of wild neutrinos The Big Bang The Atmosphere (cosmic rays) Super novae AGN's,
More informationParticles, processes and production cuts
Corso nazionale sull utilizzo del toolkit di simulazione Geant4 Laboratori Nazionali del Gran Sasso 10 Novembre 2010 Particles, processes and production cuts Outline Introduction A mention to physics list
More informationFLUKA simulations of selected topics regarding proton pencil beam scanning
FLUKA simulations of selected topics regarding proton pencil beam scanning C. Bäumer, J. Farr, J. Lambert and B. Mukherjee Westdeutsches Protonentherapiezentrum Essen, Germany T. Mertens, and B. Marchand
More informationPolarised Geant4 Applications at the ILC
Polarised Geant4 Applications at the ILC Andreas Schälicke, Karim Laihem 2 and Pavel Starovoitov - DESY Platanenallee 6, 578 Zeuthen - Germany 2- RWTH Aachen - Phys. Inst. IIIB Physikzentrum, 5256 Aachen-
More informationAnalysis of radioinduced DNA damages using Monte Carlo calculations at nanometric scale for different irradiation configurations
DOI: 10.15669/pnst.4.413 Progress in Nuclear Science and Technology Volume 4 (2014) pp. 413-417 ARTICLE Analysis of radioinduced DNA damages using Monte Carlo calculations at nanometric scale for different
More informationMAGNETIC FIELD EFFECTS ON THE NANOSCOPIC CLUSTER-SIZE DISTRIBUTION FOR THERAPEUTIC PROTON BEAMS
MAGNETIC FIELD EFFECTS ON THE NANOSCOPIC CLUSTER-SIZE DISTRIBUTION FOR THERAPEUTIC PROTON BEAMS Danielle Tyrrell 1, Dr Susanna Guatelli 2, Prof. Anatoly Rozenfeld 3 1 SZROS, Mater Centre South Brisbane,
More informationInteraction of Particles with Matter
Chapter 10 Interaction of Particles with Matter A scattering process at an experimental particle physics facility is called an event. Stable particles emerging from an event are identified and their momenta
More informationOn the energy deposition by electrons in air and the accurate determination of the air-fluorescence yield
EPJ Web of Conferences 53, 10001 (2013) DOI: 10.1051/epjconf/20135310001 C Owned by the authors, published by EDP Sciences, 2013 On the energy deposition by electrons in air and the accurate determination
More informationMDI and detector modeling
MDI and detector modeling Nikolai Terentiev (Carnegie Mellon U./Fermilab) On behalf of N. Mokhov, S. Striganov (Fermilab), C. Gatto, A. Mazzacane, V. Di Benedetto (INFN/Fermilab/INFN Lecce and Università
More informationEEE4101F / EEE4103F Radiation Interactions & Detection
EEE4101F / EEE4103F Radiation Interactions & Detection 1. Interaction of Radiation with Matter Dr. Steve Peterson 5.14 RW James Department of Physics University of Cape Town steve.peterson@uct.ac.za March
More informationSignal Characteristics from Electromagnetic Cascades in Ice
Signal Characteristics from Electromagnetic Cascades in Ice Soebur Razzaque, Surujhdeo Seunarine, David Z. Besson, and Douglas W. McKay arxiv:astro-ph/0101315v2 26 Feb 2002 Department of Physics and Astronomy
More informationTHIS work is devoted to the description of the simulation
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, VOL. 53, NO. 2, APRIL 2006 513 Geant4 Simulation of Production and Interaction of Muons A. G. Bogdanov, H. Burkhardt, V. N. Ivanchenko, S. R. Kelner, R. P. Kokoulin,
More informationHands on LUNA: Detector Simulations with Geant4
: Detector Simulations with Geant4 Gran Sasso Science Institute E-mail: axel.boeltzig@gssi.infn.it Andreas Best Laboratori Nazionali del Gran Sasso E-mail: andreas.best@lngs.infn.it For the evaluation
More informationFrontier Particle Accelerators
AAAS February 2005 Frontier Particle Accelerators For Elementary Particle Physics Together with Cosmology and Astrophysics, Elementary Particle Physics seeks understanding of the basic physical character
More informationUser Documentation and Examples (II) in GEANT p01
User Documentation and Examples (II) in GEANT 4.9.3-p01 Michael H. Kelsey SLAC National Accelerator Laboratory GEANT4 Tutorial, BUAF Puebla, Mexico 14 Jun 2010 Advanced User Documentation Toolkit developers
More informationGeant4 Electromagnetic Physics Updates
Geant4 Electromagnetic Physics Updates V. Ivanchenko, CERN & Geant4 Associates International S. Incerti, CNRS, IN2P3, CENBG, France 12 th Geant4 Space User Workshop 10-12 April 2017 University of Surrey,
More informationCOMPARISON OF GEAN T 4 WITH EGSnrc FOR SIMULATION OF GAMMA-RADIATION DETECTORS BASED ON SEMI-INSULATING MATERIALS
COMPARISON OF GEAN T 4 WITH EGSnrc FOR SIMULATION OF GAMMA-RADIATION DETECTORS BASED ON SEMI-INSULATING MATERIALS A.I. Skrypnyk, A.A. Zakharchenko, M.A. Khazhmuradov National Science Center Kharkov Institute
More informationBenchmark Tests of Gamma-Ray Production Data in JENDL-3 for Some Important Nuclides
Journal of NUCLEAR SCIENCE and TECFINOLOGY, 27[9], pp. 844~852 (September 1990). TECHNICAL REPORT Benchmark Tests of Gamma-Ray Production Data in JENDL-3 for Some Important Nuclides CAI Shao-huit, Akira
More informationValidation of Geant4 atomic relaxation against the NIST Physical Reference Data
University of Wollongong Research Online Faculty of Engineering - Papers (Archive) Faculty of Engineering and Information Sciences 2007 Validation of Geant4 atomic relaxation against the NIST Physical
More informationJet Energy Calibration. Beate Heinemann University of Liverpool
Jet Energy Calibration Beate Heinemann University of Liverpool Fermilab, August 14th 2006 1 Outline Introduction CDF and D0 calorimeters Response corrections Multiple interactions η-dependent corrections
More informationOPTIMIZATION OF A NOVEL SOLID-STATE SELF POWERED NEUTRON DETECTOR
International Conference on Mathematics, Computational Methods & Reactor Physics (M&C 009) Saratoga Springs, New York, May 3-7, 009, on CD-ROM, American Nuclear Society, LaGrange Park, IL (009) OPTIMIZATION
More informationARTICLE IN PRESS. Nuclear Instruments and Methods in Physics Research A
Nuclear Instruments and Methods in Physics Research A 66 (29) 7 77 Contents lists available at ScienceDirect Nuclear Instruments and Methods in Physics Research A journal homepage: www.elsevier.com/locate/nima
More informationA MONTE CARLO SIMULATION OF COMPTON SUPPRESSION FOR NEUTRON ACTIVATION ANALYSIS. Joshua Frye Adviser Chris Grant 8/24/2012 ABSTRACT
A MONTE CARLO SIMULATION OF COMPTON SUPPRESSION FOR NEUTRON ACTIVATION ANALYSIS Joshua Frye Adviser Chris Grant 8/24/2012 ABSTRACT A Monte Carlo simulation has been developed using the Geant4 software
More informationSTATUS OF ATLAS TILE CALORIMETER AND STUDY OF MUON INTERACTIONS. 1 Brief Description of the ATLAS Tile Calorimeter
STATUS OF ATLAS TILE CALORIMETER AND STUDY OF MUON INTERACTIONS L. E. PRICE Bldg 362, Argonne National Laboratory, Argonne, IL 60439, USA E-mail: lprice@anl.gov (For the ATLAS Tile Calorimeter Collaboration)
More informationPHYS 5020 Computation and Image Processing
PHYS 5020 and Image Processing : Monte Carlo Thursday 2 August 2012 Monte Carlo (MC) is a numerical method that uses random sampling of probability distributions to simulate stochastic processes in nature,
More informationCalculations of Neutron Yield and Gamma Rays Intensity by GEANT4
Armenian Journal of Physics, 2016, vol. 9, issue 4, pp. 315-323 Calculations of Neutron Yield and Gamma Rays Intensity by GEANT4 R. Avagyan, R. Avetisyan, V. Ivanyan*, I. Kerobyan A.I. Alikhanyan National
More informationDetectors for High Energy Physics
Detectors for High Energy Physics Ingrid-Maria Gregor, DESY DESY Summer Student Program 2017 Hamburg July 26th/27th Disclaimer Particle Detectors are very complex, a lot of physics is behind the detection
More informationSimulation of GEM-TPC Prototype for the Super-FRS Beam Diagnostics System at FAIR
Progress in NUCLEAR SCIENCE and TECHNOLOGY, Vol. 2, pp.401-405 (2011) ARTICLE Simulation of GEM-TPC Prototype for the Super-FRS Beam Diagnostics System at FAIR Matti KALLIOKOSKI * Helsinki Institute of
More informationIntroduction to the geant4 simulation toolkit
University of Wollongong Research Online Faculty of Engineering - Papers (Archive) Faculty of Engineering and Information Sciences 2011 Introduction to the geant4 simulation toolkit Susanna Guatelli University
More informationStatus of the AGS Experiment for Mercury Spallation
Status of the AGS Experiment for Mercury Spallation Target Development Y. Ikeda 1 and ASTE Collaboration Team 2 1 Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195 2 International
More informationUser Documents and Examples II
User Documents and Examples II John Apostolakis Most slides from Dennis Wright s talk at SLAC Geant4 Tutorial, May 2007 Geant4 V8.3 Outline User Documents Toolkit Developers' Guide Physics Reference Manual
More informationThe W-mass Measurement at CDF
2010-05 - 10 The W-mass Measurement at CDF Ilija Bizjak, University College London 1/33 Outline 1) Motivation for a W mass measurement Implications for the EW constraints on Higgs mass 2) Measurement of
More informationINCL INTRA-NUCLEAR CASCADE AND ABLA DE-EXCITATION MODELS IN GEANT4
Joint International Conference on Supercomputing in Nuclear Applications and Monte Carlo (SNA + MC) Hitotsubashi Memorial Hall, Tokyo, Japan, October -, INCL INTRA-NUCLEAR CASCADE AND ABLA DE-EXCITATION
More informationThe Advanced Gamma Ray Tracking Array AGATA
Nuclear Physics A 746 (2004) 248c 254c The Advanced Gamma Ray Tracking Array AGATA Dino Bazzacco a a INFN, Sezione di Padova, Via Marzolo 8, I 35131 Padova, Italy On behalf of the AGATA collaboration New
More informationMonte Carlo radiation transport codes
Monte Carlo radiation transport codes How do they work? Michel Maire (Lapp/Annecy) 16/09/2011 introduction to Monte Carlo radiation transport codes 1 Outline From simplest case to complete process : Decay
More informationSimulation with Geant4 of a novel position detector based on nanotechnologies
University of Wollongong Research Online Faculty of Engineering and Information Sciences - Papers: Part A Faculty of Engineering and Information Sciences 26 Simulation with Geant4 of a novel position detector
More informationPhysics potential of ATLAS upgrades at HL-LHC
M.Testa on behalf of the ATLAS Collaboration INFN LNF, Italy E-mail: marianna.testa@lnf.infn.it ATL-PHYS-PROC-207-50 22 September 207 The High Luminosity-Large Hadron Collider (HL-LHC) is expected to start
More informationBethe-Block. Stopping power of positive muons in copper vs βγ = p/mc. The slight dependence on M at highest energies through T max
Bethe-Block Stopping power of positive muons in copper vs βγ = p/mc. The slight dependence on M at highest energies through T max can be used for PID but typically de/dx depend only on β (given a particle
More informationNuclear contribution into single-event upset in 3D on-board electronics at moderate energy cosmic proton impact
Nuclear contribution into single-event upset in 3D on-board electronics at moderate energy cosmic proton impact N. G. Chechenin, T. V. Chuvilskaya and A. A. Shirokova Skobeltsyn Institute of Nuclear Physics,
More informationComplete activation data libraries for all incident particles, all energies and including covariance data
Complete activation data libraries for all incident particles, all energies and including covariance data Arjan Koning NRG Petten, The Netherlands Workshop on Activation Data EAF 2011 June 1-3 2011, Prague,
More informationFig. 11. Signal distributions for 20 GeV * particles. Shown are the measured Éerenkov (a) and scintillation (b) signal distributions as well as the
Fig. 11. Signal distributions for 20 GeV * particles. Shown are the measured Éerenkov (a) and scintillation (b) signal distributions as well as the signal distribution obtained by combining the two signals
More informationSimulations of Advanced Compton Telescopes in a Space Radiation Environment
Simulations of Advanced Compton Telescopes in a Space Radiation Environment Andreas Zoglauer, C.B. Wunderer, S.E. Boggs, UC Berkeley Space Sciences Laboratory G. Weidenspointner CESR, France The Advanced
More informationProblem P7. Stéphanie Ménard. Dosimetry Department Fontenay-aux FRANCE IRSN QUADOS IRSN
Problem P7 Stéphanie Ménard Dosimetry Department 92262 Fontenay-aux aux-roses FRANCE What are the applications of Gamma-Ray Spectrometry in Radiological Protection and in Safety? In the environment: after
More informationBenchmark Test of JENDL High Energy File with MCNP
Benchmark Test of JENDL High Energy File with MCNP Masayuki WADA, Fujio MAEKAWA, Chikara KONNO Intense Neutron Source Laboratory, Department of Materials Science Japan Atomic Energy Research Institute,
More informationarxiv: v1 [physics.ins-det] 29 Jun 2011
Performance simulation of a MRPC-based PET Imaging System arxiv:1106.5877v1 [physics.ins-det] 29 Jun 2011 A. Banerjee, S. Chattopadhyay April 16, 2018 Abstract The low cost and high resolution gas-based
More informationLight ion recoil detector
Light ion recoil detector Overall design The detector for light (target-like) particles is a substantial part of the R3B setup. It allows registration of recoils in coincidence with the heavy fragments,
More informationInteraction of charged particles and photons with matter
Interaction of charged particles and photons with matter Robert Miyaoka, Ph.D. Old Fisheries Center, Room 200 rmiyaoka@u.washington.edu Passage of radiation through matter depends on Type of radiation
More informationThe TIC project: tracking gamma rays with a calorimeter
The TIC project: tracking gamma rays with a calorimeter Nicola Mori INFN sezione di Firenze 5th HERD workshop CERN - 12th October 2017 Future cosmic-ray experiments Requirements for the high-energy frontier:
More informationMonte Carlo Simulator to Study High Mass X-ray Binary System
SLAC-PUB-11350 Monte Carlo Simulator to Study High Mass X-ray Binary System S. Watanabe, F. Nagase, T. Takahashi ISAS/JAXA, Sagamihara, Kanagawa 229-8510, Japan M. Sako, S.M. Kahn KIPAC/Stanford, Stanford,
More informationApplied Nuclear Physics (Fall 2006) Lecture 21 (11/29/06) Detection of Nuclear Radiation: Pulse Height Spectra
22.101 Applied Nuclear Physics (Fall 2006) Lecture 21 (11/29/06) Detection of Nuclear Radiation: Pulse Height Spectra References: W. E. Meyerhof, Elements of Nuclear Physics (McGraw-Hill, New York, 1967),
More informationEVENT-BY-EVENT MONTE CARLO TRACKING OF NEUTRON-NUCLEUS COLLISIONS IN NEUTRON DETECTORS
EVENT-BY-EVENT MONTE CARLO TRACKING OF NEUTRON-NUCLEUS COLLISIONS IN NEUTRON DETECTORS MARY CHIN & NICHOLAS SPYROU Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom A VERY
More information