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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 on theme: "First simulations for ACTAR H. Alvarez, J. Benlliure, M. Caamaño, D. Cortina, I. Durán Universidad de Santiago de Compostela EURONS ACTAR JRA 1 Ganil,"— Presentation transcript:

1 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

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

3 GANIL 2005 Key reactions 6he p

4 GANIL 2005 Key reactions 132Snp

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

6 Bordeaux 2005 8He(p,p) @ 50 MeV Isobutane  at STP Range Calculation proton 8He Elab Range SRIM GEANT SRIM GEANT Interaction of HI with gas

7 GANIL 2005 Range Calculation GEANT SRIM Interaction of HI with gas

8 GANIL 2005 Range Calculation GEANT SRIM Interaction of HI with gas

9 GANIL 2005 Range Calculation GEANT SRIM Interaction of HI with gas

10 GANIL 2005 Range Calculation GEANT SRIM Interaction of HI with gas

11 GANIL 2005 Range Calculation GEANT SRIM Interaction of HI with gas

12 GANIL 2005 Range Calculation GEANT SRIM Interaction of HI with gas

13 GANIL 2005 Straggling GEANT SRIM Interaction of HI with gas

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

15  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

16  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

17 Inputs Bordeaux 2005 8He(p,t) @ 50 MeV  =0 o 8He(p,t) @ 100 MeV  =0 o isobutane1 atm 1 atm 3 atm B y = 2T

18 Event Generator  Kinematics Bordeaux 2005 **** CINEMATIQUE **** 8He(p,p)8He @ 50 MeV THLAB3 ELAB3 THLAB4 ELAB4 0.000 50.000 0.00 0.000 0.000 30.207 0.00 19.793 1.000 49.877 85.46 0.123 1.000 30.281 3.49 19.719 2.000 49.504 80.84 0.496 2.000 30.509 7.06 19.491 3.000 48.860 76.04 1.140 3.000 30.911 10.81 19.089 4.000 47.908 70.93 2.092 4.000 31.524 14.88 18.476 5.000 46.565 65.27 3.435 5.000 32.432 19.50 17.568 6.000 44.631 58.48 5.369 6.000 33.837 25.24 16.163 7.000 41.106 47.76 8.894 :::::::::::::::::::::::::::::::::::::::::::::::: 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)

19 Magnetic Field Bordeaux 2005 8He(p,p) @ 50 MeV 8He E lab =47.908 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

20 Magnetic Field Bordeaux 2005 8He(p,p) @ 50 MeV 8He E lab = 33.8 MeV  lab =6 o  lab = -29.3 o p E=16.2 MeV  lab =25.2 o  lab =150.6 o Range 8He ~171.0 mm Range p ~ 964.6 mm B y =2T B y =4T Isobutane STP

21 Magnetic Field Bordeaux 2005 8He(p,t) @ 100 MeVIsobutane STP B y =2T Isobutane 3 atm B y =2T proton 8He

22 Bordeaux 2005 8He(p,t) @ 100 MeV Isobutane  at STP B y = 2T 6He E lab = 72.897 MeV  lab =16 o  lab = -29 o t E=33.53 MeV  lab =25 o  lab =150 o Track reconstruction X Z Y

23 Bordeaux 2005 8He(p,t) @ 100 MeV Isobutane  at STP B y = 4T 6He E lab = 72.897 MeV  lab =16 o  lab = -29 o t E=33.53 MeV  lab =25 o  lab =150 o Track reconstruction X Z Y

24 Bordeaux 2005 8He(p,t) @ 100 MeV Isobutane  at STP B y = 3T 6He E lab = 72.897 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

25 Bordeaux 2005 8He(p,t) @ 100 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

26 Simulation Output Bordeaux 2005

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