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HK: Fachverband Physik der Hadronen und Kerne

HK 63: Instrumentation XVI

HK 63.3: Vortrag

Donnerstag, 23. März 2023, 16:30–16:45, SCH/A251

Characterization and test of STS modules for the E16 experiment — •Dairon Rodriguez Garces for the CBM collaboration — GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany

The J-PARC E16 experiment has the goal to search for signatures of the spontaneously broken chiral symmetry and its (partial) restoration, through di-electron detection from slowly moving vector mesons, particularly the phi meson, produced in proton-nucleus collisions. For this purpose, the experiment will use modules constructed using the same technology and procedures as the modules of the Silicon Tracking System (STS) of the CBM experiment.

A total of 10 modules were assembled at the Detector Lab in GSI. This is the first time a series of modules is produced with final components, and systematically tested. Each module has a double-sided silicon sensor, connected via a stack of microcables to a pair front-end boards (FEBs) with 8 ASICs (STS-XYTERv2) each. The characterization of the E16 modules was carried out through the STS testing procedure that includes the determination of the set of the operational parameters for each module (ADC calibration, etc.), testing the performance (ENC noise, the linearity of the ADC and the homogeneity of the channels response), and also the identification of the broken channels.

This work will show the results of testing and characterizing the E16 modules and the insights that we have gained from it for the upcoming series production of STS modules.