COMPASS user request for test beam time (v1.0) ---------------------------------------------- 1. contact persons: Guennady Alexeev - alexeev@vxjinr.jinr.ru, Mikhail Sapozhnikov - SAPOJNIK@VXCERN.CERN.CH 2. type of detector to be tested: Mini-Drift Tubes (MDT) for Muon Filter-1 3. period foreseen for the tests: 1 week / May, 2 weeks / Sept. and 2 weeks / October 4. do you handle with flamable gases (yes, no): YES - methane, ethane, isobutane 5. longitudinal size of the detector: [cm]: 20 ( active detector volume, more space may be needed for mounting frames etc.) [radiation lengths]: 20 % [interaction lengths]: few % 6. transverse size of the detector [cm]: 100 X 100 in May run, 100 X 400 (close to real size) in Sept./Oct. run 7. beam energy [GeV]: any above 10 GeV 8. beam partciles (electrons, hadrons, muons): muons, hadrons, electrons - to check/compare MIPs and showering particles 9. estimated # of events: 10**7 ( basically muons/80% the rest - hadrons/10%, electrons/10% ) 10.a) desired rate [particles/spill]: 1000 b) maximum tolerable rate [particle/spill]: 10 000 11. independent tracking required (yes, no): yes 12. readout electronics: IBM PC with ethernet port, 2 CAMAC crates, 2 NIM crates standard set of NIM logics modules and CAMAC modules, including: TDC LRS 2228A - 4 units, ADC LRS 2249W - 3 units, High Voltage units CAEN or comparable - 4 outputs x 1 mA. 13. estimated amount of rack space for the readout electronics: 1 rack 14. What is the maximum tolerable amount of material upstream your detector [radiation lengths]: not important [interaction lengths]: not important