1. Tail Catcher/Muon Tracker at DESY & FNAL TB Facilities Northern Illinois Center for Accelerator and Detector Development Northern Illinois University and Deutsches Elektronen-Synchrotron (DESY)

2. CALICE TCMT (Tail Catcher/Muon Tracker) Provide a reasonable snapshot of the tail-end of the shower for simulation validation Prototype detector with high-fidelity to what is imagined for a generic LCD correcting for leakage understanding the impact of coil muon reconstruction + PFA fake rate Designed to test new detector technology (Silicon photomultipliers) for the ILC

3. CALICE TCMT (Tail Catcher/Muon Tracker) Silicon Photomultiplier Extruded Scintillator Diagram of Full Detector Stack designed and assembled at Fermi

4. Beam Test at DESY (not to scale) Collimator Finger counters (trigger) TCMT (blue) AHCAL (black) Oct.-Nov. 2005

5. TCMT Strips AHCAL Tiles 3 GeV/c Events in TCMT and AHCAL

6. Transverse scan

7. Beam Test at Fermilab in February 2006 Finger counters (trigger) TCMT cassette

8. CALICE TCMT Calibration data showing single Photoelectron separation Moved into the facility 3 rd week of Feb. Took beam in the last week ~ 5 days Took 120 GeV/c protons, 16 GeV/c (mostly pions) and some beam dump muon runs Calice DAQ Electronics chain reproduced and tested Raw ADC count from 120 GeV proton beam On Avg. 10-12 p.e./mip

9. Pedestal subtracted noise signal

10. Plans Participation in the combined test beam at CERN. Approximately 1 month (August-October) of beam time Followed by longer tests at Fermilab in 2007