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Krakow Feb.06

Krakow Feb.06. GEANT4 Simulations of LumiCal. Institute of Physics, Prague. Petr Mikes / Lukas Masek. Krakow Feb.06. Outlook. 1. Description of current geometry and future upgrades. 2. Preliminary GEANT simulations of LumiCal. 3. Future steps. Krakow Feb.06. G4Geometry.

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Krakow Feb.06

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  1. Krakow Feb.06 GEANT4 Simulations of LumiCal Institute of Physics, Prague Petr Mikes / Lukas Masek

  2. Krakow Feb.06 Outlook 1. Description of current geometry and future upgrades. 2. Preliminary GEANT simulations of LumiCal. 3. Future steps.

  3. Krakow Feb.06 G4Geometry Strip version: Number of Layers = 30 Number of Segments = 24 Number of Cylinders = 10

  4. Krakow Feb.06 G4Material Thungsten (2.5 mm) new G4Material(“Thungsten", 74., 183.84*g/mole, 19.250*g/cm3, kStateSolid, 273.15*kelvin, 1.0*atmosphere ); Thin Layers of thungsten Silicon (0.3 mm) new G4Material("Silicon", 14., 28.0855*g/mole, 2.330*g/cm3, kStateSolid, 273.15*kelvin, 1.0*atmosphere ); Electronic board (0.8 mm) G4Material* Ka = new G4Material("Kapton",1.43*g/cm3, ncomponents=4); Ka->AddElement(elC,natoms=22); Ka->AddElement(elH,natoms=10); Ka->AddElement(elN,natoms=2); Ka->AddElement(elO,natoms=5); density = (fractionmass1/100*1.43 + fractionmass2/100*8.960)*g/cm3; G4Material*Electronic = new G4Material("Electronic_board", density, ncomponents=2); Electronic->AddMaterial(Ka, fractionmass1*perCent); Electronic->AddMaterial(Cu, fractionmass2*perCent); Air (1.2 mm) G4Material* Air =new G4Material("Air", 1.290*mg/cm3, 2); Air->AddElement( elN, 0.7); Air->AddElement( elO, 0.3);

  5. 4 rings 15 rings 11 rings 10 cylinders 20 cylinders 10cylinders Krakow Feb.06 Geometry upgrades Change geometry to Maximum Peak Shower Design. Help to Bogdan Pawlik with implementation to MOKKA. Use both sides of detector and use Bhabha generator.

  6. Krakow Feb.06 Simulations GOALS: Cooperate with HEP Experimental group, TAU (Ronen Ingbir, Sergey Kananov). Create simulation group in Prague (Petr Mikes, Lukas Masek, Jaroslav Klaus). Make GEANT simulations of LumiCal for different particles and energies and optimize its parameters.

  7. Krakow Feb.06 G4Events for diferent particles and energies g e- (100GeV) (200GeV) (500GeV) (100GeV) (200GeV) (500GeV)

  8. Krakow Feb.06 Preliminary results 100 GeV <z> [cm] [mm] energy [GeV] <z> = zi*Ei / Ei x and y are still not sensitive, problem with copy numbers Simulations are quite slow, need optimizations.

  9. Krakow Feb.06 Summary and future steps Geometry We still need few weeks for finish our setup: Set Sensitivity for x and y, change geometry to Max. Peak Shower Design, use MOKKA design (work simultaneosly with Bogdan Pawlik). Simulations: When setup is done, start testing LumiCal with different particles, energies, beam position, different number of cylinders and sements etc. Work simultaneously with TAU (Ronen Ingbir, Sergey Kananov). Use computer farm GOLIASH situated in ASCR for faster simulations (Jaroslav Klaus). Be in the contact with OM Semiconductors for producing wafers for LumiCal.

  10. Krakow Feb.06 I hope in constructive cooperation THANK YOU

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