1. ITEP Ion Experiment GEANT3 Simulation Boris Zagreev ITEP, 19 November 2003

2. GEANT3 based on ROOT ● PAW -> ROOT (see http://root.cern.ch) ● C++ interface ● Virtual Monte-Carlo: GEANT3, GEANT4, FLUKA etc.

3. Setup

4. Установка в GEANT3

5. Occupancy & spectra at the first (solid) and the last (dashed) tracking plane. B=1T, T=0.8 GeV*A All ~3 part./event at the first plane Charged ~1 part./event at the first plane

6. Occupancy & spectra at the first (solid) and the last (dashed) tracking plane. B=1.5T, T=0.8 GeV*A All ~3 part./event at the first plane Charged ~1 part./event at the first plane

7. Occupancy & spectra at the first (solid) and the last (dashed) tracking plane. B=1T, T=2.1 GeV*A All ~3 part./event at the first plane Charged ~1 part./event at the first plane

8. Occupancy & spectra at the first (solid) and the last (dashed) tracking plane. B=1.5T, T=2.1 GeV*A All ~3 part./event at the first plane Charged ~1 part./event at the first plane

9. Occupancy & spectra at the first (solid) and the last (dashed) tracking plane. B=1T, T=3.66 GeV*A All ~3 part./event at the first plane Charged ~1 part./event at the first plane

10. Occupancy & spectra at the first (solid) and the last (dashed) tracking plane. B=1.5T, T=3.66 GeV*A All ~3 part./event at the first plane Charged ~1 part./event at the first plane

11. Occupancy & spectra at the forward calorimeter, T=0.8 GeV*A All ~9 part./event Charged ~4 part./event

12. Occupancy & spectra at the forward calorimeter, T=2.1 GeV*A All ~11 part./event Charged ~5 part./event

13. Occupancy & spectra at the forward calorimeter, T=3.66 GeV*A All ~12 part./event Charged ~6 part./event

14. Generator distribution

15. Заключение ● Поток заряженных частиц через первую плоскость камер ~1/(32x32) cm  10 cm ● Поток заряженных частиц через последнюю плоскость камер более чем на порядок меньше. ● Через передний калориметер проходит ~10 частиц за событие при энергии налетающего ядра углерода от 0.8 до 3.66 GeV/c. -3-2