General Introduction to IFR W. Baldini, INFN-Ferrara XIV SuperB General Meeting, Frascati Sept.27 – Oct.1 2010

Overview Introduction to the IFR News since Elba Meeting Ongoing activities Goal for the meeting and plans for the TDR Other IFR contributions

The IFR Baseline Detection Technique Magnet Flux Return instrumented to detect Muons and KL BaBar-like detector with hexagonal barrel and two encaps Plan to re-use BaBar IFR structure, adding iron to improve μ-ID Scintillator as active material to cope with higher flux of particles Minos-like scintillator bars readout through WLS fibers and Silicon Photo-Multipliers 8-9 active layers Endcap Barrel μ

Readout Options Time readout Option (TDC-RO): the hit bar gives the first coordinate while the signal arrival time provides the second measure the 2 coordinate at the same time 1ns time resolution  ~ 20cm need TDC readout for each channel relatively simple to be constructed res~20cm Binary readout Option: (BI-RO): the two coordinates are given by two planes of orthogonal scintillator bars: high combinatorial simpler (and cheaper) electronics more complex construction Both option will be tested on beam thanks to a full scale prototype

Active Layers Main components SCINTILLATORS: produced by extrusion at FNAL in the FNAL-NICADD facility thickness: 1.0cm for TDC-RO 2.0cm for BI-RO coated with TiO2 (co-extruded) WLS FIBERS: two types under test Saint-Gobain BCF92: fast (decay time 2.7ns) but limited light yeld Kuraray Y11: slower (decay time ~ 9 ns) but ~20% higher light yield SiPM: produced in Trento by IRST-FBK 1.2x3.2 mm2 to match 3 fibers ϕ=1.0mm 1.4x3.8mm2 for ϕ=1.2mm fibers array of 3 round SiPM ϕ=1.4mm

The Prototype Active Layers (Pizza Boxes) A full scale prototype is being developed to measure on beam the performances and test different readout options: Muon-ID for different iron-scintillator configurations Detection efficiency Time resolution More detailed description in the next talk

Simulations μ A full prototype simulation has been developed: It takes into account the realistic condition of the testbeam (e.g. 18 cm of iron in front of the prototype) It simulates both types of Layers: TDC-RO and BI-RO, for the latter the two layers are simulated separately It allows to move the active layers in different slots, to study the best configuration Prototype 18 cm of iron X and Y separate Layers for Bi-Ro TDC-RO Bi-Ro μ

Goal for this meeting Review the status and the achievements for all the ongoing activities Particular focus on: Prototype finalization and local tests (cosmics, source) Detailed planning and coordination of the the testbeam Analyze the TDR preparation process and Organize the medium term activities

IFR Sessions Monday Sept-27 Monday Sept-27 Wednesday Sept-29