$IAEA_INDEX: 307 // IAEA website: www-nds.iaea.org/phsp/photon/ $TITLE: PHASESPACE in IAEA format for the NRC Elekta Precise linac at 10 MV $FILE_TYPE: 0 $CHECKSUM: 4153771941 $RECORD_CONTENTS: 1 // X is stored ? 1 // Y is stored ? 0 // Z is stored ? 1 // U is stored ? 1 // V is stored ? 1 // W is stored ? 1 // Weight is stored ? 0 // Extra floats stored ? 2 // Extra longs stored ? 1 // Incremental history number stored in the extralong array [ 0] 2 // LATCH EGS variable stored in the extralong array [ 1] $RECORD_CONSTANT: 27.21 // Constant Z $RECORD_LENGTH: 33 $BYTE_ORDER: 1234 $ORIG_HISTORIES: 83750000 $PARTICLES: 125871877 $PHOTONS: 124705635 $ELECTRONS: 1101862 $POSITRONS: 64380 $TRANSPORT_PARAMETERS: Global ECUT= 0.7 Global PCUT= 0.01 Global SMAX= 1e10 ESTEPE= 0.25 XIMAX= 0.5 Boundary crossing algorithm= EXACT Skin depth for BCA= 0 Electron-step algorithm= PRESTA-II Spin effects= On Brems angular sampling= KM Brems cross sections= BH Bound Compton scattering= Off Pair angular sampling= Simple Photoelectron angular sampling= Off Rayleigh scattering= Off Atomic relaxations= Off Electron impact ionization= Off $MACHINE_TYPE: Elekta Precise $MONTE_CARLO_CODE_VERSION: EGSnrc V4-r2-3-0, BEAMnrc 2009 $GLOBAL_PHOTON_ENERGY_CUTOFF: 0.01000 $GLOBAL_PARTICLE_ENERGY_CUTOFF: 0.70000 $COORDINATE_SYSTEM_DESCRIPTION: Beam axis is along the Z axis, top of bremsstrahlung target at Z=0 // OPTIONAL INFORMATION $BEAM_NAME: $FIELD_SIZE: Phase space data is above the MLC/photon jaws $NOMINAL_SSD: $MC_INPUT_FILENAME: $VARIANCE_REDUCTION_TECHNIQUES: UBS with NBRSPL=20, range rejection with ESAVE=1.511 MeV everywhere except in bremsstrahlung target where it was set to 0.7 MeV $INITIAL_SOURCE_DESCRIPTION: BEAMnrc Source 19 with monoenergetic 9.4 MeV electrons and a spot size of FWHM=0.118 cm $PUBLISHED_REFERENCE: E.Tonkopi, M.R.McEwen, B.R.B.Walters and I.Kawrakow, Med.Phys. 32 (2005) 2918-2927 M.R.McEwen, I.Kawrakow and C.Ross, Med.Phys. 35 (2008) 950-958 $AUTHORS: Iwan Kawrakow $INSTITUTION: National Research Council of Canada $LINK_VALIDATION: $ADDITIONAL_NOTES: This is IAEA header as defined in the technical report IAEA(NDS)-0484, Vienna, 2006 $STATISTICAL_INFORMATION_PARTICLES: // Weight Wmin Wmax Emin Emax Particle 6.23529E+06 0.05 0.05 2.056 0.01 9.399 PHOTONS 55093.1 0.05 0.05 2.271 0.6997 9.471 ELECTRONS 3219 0.05 0.05 2.589 0.7 8.419 POSITRONS $STATISTICAL_INFORMATION_GEOMETRY: -19.5 19.5 -19.5 19.5