TAU Update

MPI Munich meeting 17/10/2006

Luminosity Detector R&D

Tel Aviv University

Halina Abramowicz, Ronen Ingbir, Sergey Kananov, Aharon Levy, Iftach Sadeh

CollaborationHigh precision design

Backgrounds

FCAL -- TAU 17/10/2006

Background - Theta

FCAL -- TAU 17/10/2006

Chen,Tauchi and Schroeder Paper

Backgroud - Pt

FCAL -- TAU 17/10/2006

Chen,Tauchi and Schroeder Paper

Energy resolution & Digitization

FCAL -- TAU 17/10/2006

No digitization

~ 25% energy resolution

Energy [GeV]

Cells energy Mips

FCAL -- TAU 17/10/2006

Cell Energy [GeV] # MIPS

1 MIP leaves 150 KeV tested using simulation of

Muons hitting LumiCal

Digitization Model

FCAL -- TAU 17/10/2006

ADC

High Gain

Low Gain

At low gain : 5 bins are required for one MIP

Investigation: 6,7,8,9,10,11,12 BITS ADCs

Results

FCAL -- TAU 17/10/2006

Bits Bits

E

EEdig

E

EEdig

Linear Scale Log Scale

Silicon Lab

FCAL -- TAU 17/10/2006

Phase one - Basic setup (I/V, C/V)Phase two - MIP measurements and first sensor designPhase three - Sensor with basic readout elec. (Laser system)

Probe station arrived to TAU

(Thanks to DESY Zeuthen)

Purchase of lab equipment starts (Phase one)

Contact local industry

Cooperation with TAU Elec. engineering department

Summary

FCAL -- TAU 17/10/2006

Backgrounds : the calculations should be compared to the MC simulations.

Digitization : 8 BITS ADC maintain energy reconstruction performance. More studies are needed to include noise and to check full event reconstruction (energy & position).

Silicon Lab : still in the setup phase allot of work ahead !