First simulations for ACTAR H. Alvarez, J. Benlliure, M. Caamaño, D. Cortina, I. Durán Universidad de Santiago de Compostela EURONS ACTAR JRA 1 Ganil,

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Presentation transcript:

First simulations for ACTAR H. Alvarez, J. Benlliure, M. Caamaño, D. Cortina, I. Durán Universidad de Santiago de Compostela EURONS ACTAR JRA 1 Ganil, November 2005

 Kinematics of key reactions elastic scattering transfer reactions  Comparison GEANT4 versus SRIM Range Longitudinal straggling Before to start GANIL 2005 Documentation in Santiago webpage....

GANIL 2005 Key reactions 6he p

GANIL 2005 Key reactions 132Snp

GANIL 2005 Key reactions 8n 25Al 8n 22Mg

Bordeaux MeV Isobutane  at STP Range Calculation proton 8He Elab Range SRIM GEANT SRIM GEANT Interaction of HI with gas

GANIL 2005 Range Calculation GEANT SRIM Interaction of HI with gas

GANIL 2005 Range Calculation GEANT SRIM Interaction of HI with gas

GANIL 2005 Range Calculation GEANT SRIM Interaction of HI with gas

GANIL 2005 Range Calculation GEANT SRIM Interaction of HI with gas

GANIL 2005 Range Calculation GEANT SRIM Interaction of HI with gas

GANIL 2005 Range Calculation GEANT SRIM Interaction of HI with gas

GANIL 2005 Straggling GEANT SRIM Interaction of HI with gas

 Kinematics of key reactions elastic scattering transfer reactions  Comparison GEANT4 versus SRIM Range Longitudinal straggling Other gases? Higher preassure?? Before to start GANIL 2005

 Simulation package GEANT 4 geometry description cubic volume (1m 3 ) filled with gas any gas, pressure and geometry is in principle possible “pseudo-event generator” kinematics of different reactions output of CINE.FOR description of light charged particles and heavy ions in gas includes the effect of a magnetic field perpendicular to the symmetry plane rough pad pixelation histogram binning--> effect on final resolution output analysis possibilities--> ascii files histogrames Root Trees ( data base) Basic Ingredients Bordeaux 2005 Internal Cosmetics Documentation More general

 Simulation package GEANT 4 geometry description cubic volume (1m 3 ) filled with gas any gas, pressure and geometry is in principle possible “pseudo-event generator” kinematics of different reactions output of CINE.FOR description of light charged particles and heavy ions in gas includes the effect of a magnetic field perpendicular to the simetry plane rough pad pixelation histogram binning--> effect on final resolution output analysis possibilities--> ascii files histogrames Root Trees ( data base) What is next ? GANIL 2005 Together with Liverpool: Incorporate realistic event generators Implementation of other geometries Work on track reconstruction

Inputs Bordeaux MeV  =0 o 100 MeV  =0 o isobutane1 atm 1 atm 3 atm B y = 2T

Event Generator  Kinematics Bordeaux 2005 **** CINEMATIQUE **** 50 MeV THLAB3 ELAB3 THLAB4 ELAB :::::::::::::::::::::::::::::::::::::::::::::::: Kinematics fixed by an external program Fixed reaction point No energy loss of primary beam in the gas target selection of the azimuthal angle ( or random)

Magnetic Field Bordeaux MeV 8He E lab = MeV  lab =4.0 o  lab = -125 o p E=2.092 MeV  lab =70.93 o  lab = 55 o B y =2T B y =4T Range 8He ~ 319 mm Range p ~ 26 mm Isobutane STP

Magnetic Field Bordeaux MeV 8He E lab = 33.8 MeV  lab =6 o  lab = o p E=16.2 MeV  lab =25.2 o  lab =150.6 o Range 8He ~171.0 mm Range p ~ mm B y =2T B y =4T Isobutane STP

Magnetic Field Bordeaux MeVIsobutane STP B y =2T Isobutane 3 atm B y =2T proton 8He

Bordeaux MeV Isobutane  at STP B y = 2T 6He E lab = MeV  lab =16 o  lab = -29 o t E=33.53 MeV  lab =25 o  lab =150 o Track reconstruction X Z Y

Bordeaux MeV Isobutane  at STP B y = 4T 6He E lab = MeV  lab =16 o  lab = -29 o t E=33.53 MeV  lab =25 o  lab =150 o Track reconstruction X Z Y

Bordeaux MeV Isobutane  at STP B y = 3T 6He E lab = MeV  lab =16 o  lab = -29 o t E=33.53 MeV  lab =25 o  lab =150 o Track reconstruction Pad resolution 4mm Pad resolution 8mm Pad resolution 12mm

Bordeaux MeV Isobutane  at STP B y = 3T 6He E lab =42.09 MeV  lab =17 o  lab = 72 o t E=64.3 MeV  lab =19.5 o  lab =-107 o Track reconstruction Pad resolution 4mm Pad resolution 8mm Pad resolution 12mm

Simulation Output Bordeaux 2005