BE-BI-BLStudent Meeting

17/12/2012

Chatzichristos Christos Aris

Aim of Previous WeekThe focal points of our studies are:

1. Electric Field Studies

2. Signal / Energy Deposition Studies

3. Magnetic Field Studies

A lot of progress in all three fronts!

Geometry of LIC

Electric Field StudiesImplemented a new field map (thanks to

Juan again) for the Electric field between the electrodes

Created some nice images of the field using that data

Re-drew the historams for the signal when shooting in the center, at the edge and just outside of the electrodes of LIC

Field for z=0.5 mm

Electric Field Studies

Signal Studies

We are interested in comparing the signal of LIC in three different cases:

1. Ionization processes only2. All EM processes3. Full EM plus hadronic processes

Include hadronic processesFor the hadronic case, found the best library

for the energy range of interest [0-10 GeV]: Bertini

Signal with EM only

Signal with hadronics

Signal Studies

The signal when the hadronic processes are added is stronger (~10%) than with only EM

Also, its shape gets Landau-like instead of almost gaussian (EM-only case)

Some very energetic events with a huge signal

Magnetic Field Studies

Added a magnetic field in the entire volume of LIC

Verified that both the B-Field and the E-Field in LIC co-exist peacefully

Ran simulations with a constant magnetic field of values: 0 tesla, 0.01 tesla, 0.1 tesla and 1 tesla with a relatively narrow beam ( beam width: 0.5 mm) aiming at the center of the electrodes

Magnetic Field Studies

When shooting at the center of the electrodes, no difference in the signal with a magnetic field up to 1 tesla.

What would happened if the beam was as wide as the electrodes (37.5 mm)?

Work still in progress

Get a map for the E-field in the entire gas-filled volume of LIC to see if we get extra signal from the feedthrough

Run some many-event runs for better statistics

…