G.Alexeev for Dubna group ITEP, April 28, 2010 Muon System Status Report from Dubna Hardware : * Full Scale prototype - in preparation to be put in work position at COMPASS, expected start of long strips r/o studies – May-June 2010 * Range System prototype (degree of readiness) : - steel absorber /structure ~ 95% (Fe plates 100% ready -> to be welded) - MDT detectors ~ 50 % (all parts 100% ready, 10% of MDTs assembled) - strip boards, cables ~ few % (to be produced by summer 2010) - f/e electronics ~ few % (design 100% ready, mass production required) ( see report of A.Piskun) Software : * Acceptance studies for DY and J/ muon pairs (see report of V.Rodionov)

Full Scale prototype mechanically assembled and stored in COMPASS area (park position) It is now being equipped with HV,LV, gas lines, strip boards, f/e electronics and tested before the start of COMPASS run

Full Scale prototype position in COMPASS area. The prototype should be fixed at this point in May 2010 F S prototype position COMPASS MF2

Wiring of MDT detectors

Wiring machine for MDT detectors

Assembled MDTs (in black envelops) and profiles prepared for wiring

sev@cern.ch ander.Nagaytsev@cern.ch DAQ VME crate 9U VME crate 6U VME crate 6U COMPASS CATCH Hot link cables MWDB units to DAQ crate AAlexander.NagaytWIRE R/O analog & digital sev@cern.ch ander.Nagaytsev@cern.ch STRIP R/O digital RW-TDC QTC–16 ADB-32 (A-32) analog ASum-96 digital A2DB-32 Range System Prototype Read Out Scheme

Geometrical acceptance study of muon system in case of: full PANDA setup (material) Pythia as event generator (40K DY events) + PandaRoot. Option: with/without magnetic field in Solenoid/Dipole. Polar angle distribution of DY photons.

Plans for 2010: * FS prototype : - finish full assembly (HV, LV, cabling, gas lines, f/e electronics etc) - start running (r/o test with long 2-4 m strips) in summer 2010 - study of wave impedance for strip r/o * RS prototype : - finish production (300 MDTs, absorber structure, strip boards, cables etc) - produce and test f/e electronics (292 boards of different types) - move to CERN - assemble (at COMPASS) and test with cosmic (debugging) - start running in late autumn 2010 at PS (subject to available resources) * Software development in PANDAroot : - finish acceptance studies for muons (DY, J/ , D-mesons) with high statistics - track finding algorithms for muons in Range System (together with Torino/INFN group) - pattern recognition algorithms – muons vs hadrons (together with Torino/INFN group)

Backup slides

G10 fiberglass strip board (1cm wide strips) at CERN/COMPASS

Strip R/O from RS Prototype A-32 preamp. card Fe absorber plate MDTs strip (1cm) board

RS prototype absorber plates manufactured in Dubna

RS prototype absorber structure/frame

RS prototype assembly process (start)

RS prototype assembly process (close to finish)

RS prototype assembly finished ( 60mm plates – black, 30mm plates – blue )