1 / 7

The Beamscope

The Beamscope. Cryogenic Silicon Beam Tracker of NA60. Peter Rosinsk ý, Bratislava / CERN. Vertex ’2002 workshop. Bern. CERN. Torino. Brookhaven. RIKEN. Lisbon. Yerevan. Clermont. Cagliari. Lyon. Study of Prompt Dimuon and Charm Production with Proton and Heavy Ion Beams.

johneallen
Download Presentation

The Beamscope

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. The Beamscope Cryogenic Silicon Beam Tracker of NA60 Peter Rosinský, Bratislava/CERN Vertex ’2002 workshop

  2. Bern CERN Torino Brookhaven RIKEN Lisbon Yerevan Clermont Cagliari Lyon Study of Prompt Dimuon and Charm Production with Proton and Heavy Ion Beams R. Arnaldi, A. Baldit, K. Banicz, K. Borer, L. Casagrande, J. Castor, B. Chaurand, W. Chen, E. Chesi, B. Cheynis, C. Cicalò, P. Cortese, V. Danielyan, A. David, A. De Falco, N. De Marco, A. Devaux, B. Dezillie, L. Ducroux, H. En’yo, B. Espagnon, M. Floris, P. Force, E. Gangler, V. Granata, A. Grigorian, S. Grigorian, J.Y. Grossiord, A. Guichard, H. Gulkanian, R. Hakobyan, E. Heijne, M. Hess, J. Heuser, P. Jarron, M. Keil, L. Kluberg, B. Lenkeit, Z. Li, C. Lourenço, J. Lozano, M.P. Macciotta, F. Manso, D. Marras, A. Masoni, S. Mehrabyan, H. Muller, A. Musso, A. Neves, H. Ohnishi, S. Popescu, G. Puddu, E. Radermacher, P. Ramalhete, P. Rosinsky, P. Saturnini, E. Scomparin, J. Seixas, S. Serci, R. Shahoyan, E. Siddi, P. Sonderegger, G. Usai, G. Vandoni, H. Vardanyan and H. Wöhri

  3. thermal production ? Rapp, Shuryak, PLB473, ‘00 open charm ? NA50 QM’99 Intermediate mass region A-A: NA60: D tagging • NA38/NA50:excess • ~3.5x for central

  4. Iron wall ~1m MWPC’s Muon filter Toroidal Magnet Target area ZDC Trigger Hodoscopes NA60 detectors • Muon Spectrometer • selective dimuon trigger • NA10/38/50 • Zero Degree Calorimeter • forward energy • Pixel Telescope • secondary vertices • improved mass resolution • Alice1 pixel chip • Beamscope • primary vertex, beam tracking • ultra rad hard • Lazarus effect

  5. Vertex Tracker - • Identification of D mesons (cc) • secondary  vertex • offset of ~100 m • secondary vertex: Pixel Telescope • primary vertex: Beamscope  tracking in the beam ! Vertex Telescope absorber Muon Spectro. Dm m offset D-vertex

  6. Requirements • Beam(SPS) • protons (450 GeV): ~108/s • ions (In, Pb, 160 GeV): ~107/s ? • 1. Ultra radiation hardness • ~6x1012 p/day, ~6x1011 i/day • dose ~1Grad/day ?calc? • should survive few weeks  tens of Grad • 2. Fast readout, history buffer • protons: 1 particle every 10 ns • delayed trigger • 3. Good position resolution • ~10 m to determine offset of ~100 m • 4. Small signal from protons • special preamplification necessary (close to the sensor)

  7. Sensor • single-sided silicon strip detector • n-substrate, p+ strips (Al/p+/n/n+/Al) • 300 m thickness • 24 small strips • 50 m pitch • ?20?m width • tracking • backplane • trigger • 4 +4 wide strips • 500 m pitch • ?20?m width • beam steering • guard ring

More Related