50 likes | 196 Views
St. Kliment Ohridski UNIVERSITY OF SOFIA Department of Atomic Physics 5, James Bourchier Boul., SOFIA 1164, Bulgaria phone: +359 2 8161264; FAX: +359 2 622546; http://atomic.phys.uni-sofia.bg +3592 62-56-xxx; fax: +3592 962 52 76. NF Near detector protoipe within AIDA.
E N D
St. Kliment Ohridski UNIVERSITY OF SOFIA • Department of Atomic Physics • 5, James Bourchier Boul., SOFIA 1164, Bulgaria • phone: +359 2 8161264; FAX: +359 2 622546; http://atomic.phys.uni-sofia.bg +3592 62-56-xxx; fax: +3592 962 52 76 NF Near detector protoipe within AIDA • Sofia University group in AIDA ( • Galiva Vankova • Mariyan Bogomilov • Rosen Matev • Roumen Tsenov , in alphabetical order of the first names ) • would like to build and test a prototype • of the NF SciFi type of the Near detector.
SciFi NFND design Totals • ~0.5M fibers • ~50K bars • ~1M SiPMs
H8 beam and MORPURGO magnet • beam • p, e±,π±, μ± • FWHM 10x10 cm2 • 0.5 – 5 (9) GeV/c • magnet • 1.6 T dipole field Transverse displacement of charged particles in 1.6 T dipole field for various momenta
SciFi NFND prototype measurements • Efficiency of the fiber – SiPM - front end system depending on • particle species, • momentum, • position along the fiber, • distance from center of fiber (optional). • Efficiency of the bar - WLS fiber – SiPM - front end system. Possibly test different bar shapes/dimensions and WLS fiber placement. • Optical cross-talk between fibers. • Optional. Position/momentum reconstruction performance of the tracker. Depends on whether we have the resources
Prototype dimensions • Three 1-d stations. Can be used in 3*X or XY+X configuration. • Each station is 5 cm wide and 2 layers thick, thus having 100 fibers in total. Each fiber is read from one side with a SiPM • A total of O(20) plastic scintillator bars • with WLS fiber, each read by a SiPM • on one end. • In total there are O(300 m) of fiber • and O(320) channels (SiPM + front end) • Estimated costing: • O(€30/channel) => O(€10k) for all • O(€300) for fibers • O(€10k) for labor