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Characterization of the PANDA MVD Trapezoidal Silicon Strip Sensors and Their First Operation in a Proton Beam

Not scheduled
Beurs van Berlage

Beurs van Berlage

Poster Sensors: 1b) Semiconductor Detectors


Dariusch Deermann (Forschungszentrum Jülich)


The $\overline{\text{P}}\text{ANDA}$-experiment will be one of the main experiments inside the upcoming Facility for Antiproton and Ion Research (FAIR) at the GSI in Darmstadt. The fixed target experiment will explore $\overline{\text{p}}$p annihilation in the charm mass region with intense, phase space cooled beams with momenta between 1.5 and 15 GeV/c. The innermost subdetector of $\overline{\text{P}}\text{ANDA}$ will be the Micro Vertex Detector (MVD) and consists of silicon strip and pixel detectors. The MVD can be further divided into two sub-structures. A barrel-structure around the vertex and a disc-structure in beam direction with six disks of different size. The last two disks are hybrid disks with trapezoidal strip sensors in the outer layer surrounding a smaller ring of pixel sensors in the inner part. The other disks are made only out of pixel detectors. The first trapezoidal prototype sensors were produced by CiS\footnote{Forschungsinstitut für Mikrosensorik und Photovoltaik GmbH} and have a stereo angle of $15^{\circ}$ with 512 strips per sensor side and a strip pitch of $67.5\,\mu\text{m}$. In order to operate and test the prototype sensors, they were chracterized with a probestation as well as with a dedicated testboard. A first beam test was done at COSY\footnote{Cooler Synchrotron at Forschungszentrum Jülich GmbH} with protons of $2.95\,\text{GeV/c}$ and $800\,\text{MeV/c}$ in December 2013 and January 2014. In this talk the characterization of the trapezoidal strip sensors and the results of their first operation in a proton beam will be presented.

Primary author

Dariusch Deermann (Forschungszentrum Jülich)


Prof. James Ritman (Forschungszentrum Jülich GmbH) Tobias Stockmanns (Forschungszentrum Jülich GmbH)

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