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Hamburg 2016 – scientific programme

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T: Fachverband Teilchenphysik

T 33: Detektorsysteme I

T 33.3: Talk

Monday, February 29, 2016, 17:20–17:35, VMP8 SR 205

Testbeam Results of the Upgraded Fast Beam Condition Monitor at CMS — •Maria Hempel1,2, Konstantin Afanaciev7, Piotr Burtowy4, Hans Henschel2, Olena Karacheban1,2, Wolfgang Lange2, Jessica Lynn Leonard2, Itamar Levy5, Wolfgang Lohmann1,2, Dominik Przyborowksi6, Vladimir Ryjov4, Sergey Schuwalow3, Roberval Walsh3, and Agnieszka Zagozdzinska41BTU, Cottbus, Germany — 2DESY, Zeuthen, Germany — 3DESY, Hamburg, Germany — 4CERN, Geneva, Switzerland — 5Tel Aviv University,Tel Aviv, Israel — 6AGH-UST, Cracow, Poland — 7NCPHEP, Minsk, Belarus

The Fast Beam Condition Monitor BCM1F at CMS is based on single-crystal diamond sensor with nanosecond time resolution. BCM1F delivered luminosity and machine induced background information to the CMS and LHC control room during the first running period of the LHC. A major upgrade to BCM1F was developed and built during the long shutdown of the LHC in 2014. The increased rate and the 25ns spacing should be handled with sensors subdivided by a double pad metallization and a faster new front-end ASIC. A prototype with these new components was investigated in the testbeam at DESY-II. The results are presented and also verified by Superfish simulations.

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