ITEP Ion Experiment

GEANT3 Simulation

Boris ZagreevITEP, 19 November 2003

GEANT3 based on ROOT

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

FLUKA etc.

Setup

Установка в GEANT3

Occupancy & spectra at the first (solid) and the last (dashed) tracking plane. B=1T, T=0.8 GeV*A

All~3 part./eventat the first plane

Charged~1 part./eventat the first plane

Occupancy & spectra at the first (solid) and the last (dashed) tracking plane. B=1.5T, T=0.8 GeV*A

All~3 part./eventat the first plane

Charged~1 part./eventat the first plane

Occupancy & spectra at the first (solid) and the last (dashed) tracking plane. B=1T, T=2.1 GeV*A

All~3 part./eventat the first plane

Charged~1 part./eventat the first plane

Occupancy & spectra at the first (solid) and the last (dashed) tracking plane. B=1.5T, T=2.1 GeV*A

All~3 part./eventat the first plane

Charged~1 part./eventat the first plane

Occupancy & spectra at the first (solid) and the last (dashed) tracking plane. B=1T, T=3.66 GeV*A

All~3 part./eventat the first plane

Charged~1 part./eventat the first plane

Occupancy & spectra at the first (solid) and the last (dashed) tracking plane. B=1.5T, T=3.66 GeV*A

All~3 part./eventat the first plane

Charged~1 part./eventat the first plane

Occupancy & spectra at the forward calorimeter, T=0.8 GeV*A

All~9 part./event

Charged~4 part./event

Occupancy & spectra at the forward calorimeter, T=2.1 GeV*A

All~11 part./event

Charged~5 part./event

Occupancy & spectra at the forward calorimeter, T=3.66 GeV*A

All~12 part./event

Charged~6 part./event

Generator distribution

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.

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