Latest documents http://publikationen.ub.uni-frankfurt.de/index/index/ Tue, 16 Oct 2012 16:20:55 +0200 Tue, 16 Oct 2012 16:20:55 +0200 http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/26796 The CBM experiment will investigate heavy-ion collisions at beam energies from 8 to 45 AGeV at the future accelerator facility FAIR. The goal of the experiment is to study the QCD phase diagram in the vincinity of the QCD critical point. To do so, CBM aims at measuring rare probes among them open charm. In order to identify those rare and short lived particles despite the rich combinatorial background generated in heavy ion collisions, a micro vertex detector (MVD) providing an unprecedented combination of high rate capability and radiation hardness, very light material budget and excellent granularity is required. In this work, we will discuss the concept of this detector and summarize the status of the R&D. Michael Deveaux; Samir Amar-Youcef; Norbert Bialas; Dennis Doering; Melissa Domachowski; Horst Düring; Ingo Fröhlich; Tetyana Galatyuk; Jan Michael; Christian Müntz; Sarah Ottersbach; Paul Scharrer; Christoph Schrader; Joachim Stroth; Tobias Tischler; Christian Trageser; Bernhard Wiedemann; Jérome Baudot; Grégory Bertolone; Nathalie Chon-Sen; Claude Colledani; Rita De Masi; Andrei Dorokhov; Wojchiech Dulinski; Jean-Charles Fontaine; Mathieu Goffe; Abdelkader Himmi; Christine Hu; Kimmo Jaaskelainen; Michal Koziel; Frédéric Morel; Fouad Rami; Mathieu Specht; Isabelle Valin; Marc Winter; Christina Dritsa; Selim Seddiki; Franz M. Wagner conferenceobject http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/26796 Tue, 16 Oct 2012 16:20:55 +0200 http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/26558 CMOS sensors are the most promising candidates for the Micro-Vertex-Detector (MVD) of the CBM experiment at GSI, as they provide an unprecedented compromise between spatial resolution, low material budget, adequate radiation tolerance and readout speed. To study the integration of these sensors into a detector module, a so-called MVD-demonstrator has been developed. The demonstrator and its in-beam performance will be presented and discussed in this work. Christoph Schrader; Samir Amar-Youcef; Norbert Bialas; Michael Deveaux; Ingo Fröhlich; Christian Müntz; Selim Seddiki; Tobias Tischler; Joachim Stroth conferenceobject http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/26558 Tue, 16 Oct 2012 15:58:33 +0200 http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/25198 The design, construction, and commissioning of the ALICE Time-Projection Chamber (TPC) is described. It is the main device for pattern recognition, tracking, and identification of charged particles in the ALICE experiment at the CERN LHC. The TPC is cylindrical in shape with a volume close to 90 m3 and is operated in a 0.5 T solenoidal magnetic field parallel to its axis. In this paper we describe in detail the design considerations for this detector for operation in the extreme multiplicity environment of central Pb–Pb collisions at LHC energy. The implementation of the resulting requirements into hardware (field cage, read-out chambers, electronics), infrastructure (gas and cooling system, laser-calibration system), and software led to many technical innovations which are described along with a presentation of all the major components of the detector, as currently realized. We also report on the performance achieved after completion of the first round of stand-alone calibration runs and demonstrate results close to those specified in the TPC Technical Design Report. Johan Alme; Y. Andres; Harald Appelshäuser; Sebastian Bablok; Norbert Bialas; Rikard Bolgen; Uwe Bonnes; Roland Bramm; Peter Braun-Munzinger; Roberto Campagnolo; Peter Christiansen; Alexandru Florin Dobrin; Claude Engster; Dominik Fehlker; Yiota Foka; Uli Frankenfeld; Jens Joergen Gaardhøje; Chilo Garabatos; Peter Glässel; Carmen Gonzalez Gutierrez; Philippe Gros; Hans-Ake Gustafsson; Haavard Helstrup; Michael Hoch; Marian Ivanov; Rudolf Janik; Antoine Junique; Alexander Kalweit; Ralf Keidel; Stefan Kniege; Marek Kowalski; Dag Toppe Larsen; Yannick Lesenechal; Philippe Lenoir; Niels Lindegaard; Christian Lippmann; Magnus Mager; Manfred Mast; Adam Matyja; Magne Munkejord; Luciano Musa; Borge S. Nielsen; Vedran Nikolic; Helmut Oeschler; E.K. Olsen; Anders Oskarsson; Lennart Osterman; Miro Pikna; Attiq Ur Rehman; Gaël Renault ; Rainer Renfordt; Stefan Rossegger; Dieter Röhrich; Ketil Røed; Mattias Richter; G. Rueshmann; Andrzej Rybicki; Hans Sann; Hans-Rudolf Schmidt; Martin Siska; Brano Sitár; Carsten Soegaard; Hans Kristian Soltveit; Daniel Soyk; Johanna Stachel; Herbert Stelzer; Evert Anders Stenlund; Reinhard Stock; Peter Strmeň; Imrich Szarka; Kjetil Ullaland; Danilo Vranic; Rob Veenhof; Joern Westergaard; Jens Wiechula; Bernd Stefan Windelband article http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/25198 Thu, 14 Jun 2012 08:29:06 +0200