Speaker
Description
The Compressed Baryonic Matter (CBM) experiment at the Facility for
Antiproton and Ion Research (FAIR) is designed to explore the QCD phase diagram
in the regime of high baryon densities using high-intensity heavy-ion beams. Main goal of CBM is to detect and study the properties of the fireball of the highly
dense matter created in these collisions using the rare penetrating probes, such as dileptons. As part of its detector suite, the Muon Chamber (MuCh) is being installed for the detection of dimuon pairs and employs Gas Electron Multiplier (GEM)-based tracking detectors for first and second station.
A comprehensive Quality Assurance (QA) and Quality Control (QC) framework is being developed, incorporating steps such as foil defect inspection, leakage current measurement, mechanical tolerance verification, optical alignment checks, gas-tightness validation, and gain uniformity scanning. Ensuring the quality and uniform performance of production modules are essential step for a faithful operation of the detectors. The mass production of GEM detectors for the MuCh is in initial stage. Key stages in the fabrication process include the preparation of readout and drift PCBs, inspection and electrical testing of individual GEM foils, and the precise stacking of foils under clean room conditions will be highlighted.
To evaluate the detector performance under realistic operational conditions, a dedicated high-intensity X-ray test facility has been established. This facility is designed to simulate the radiation effect on the branch current as expected in actual CBM experiment and will be used for gain uniformity and leakage current across the active area of modules. Status of ongoing production of GEM modules and QA/QC mechanism will be discussed.
| Position | Research scholar |
|---|---|
| Affiliation | VECC Kolkata |
| Country | India |