Abstract
The ALICE Silicon Pixel Detector (SPD) will include 1200 bump-bonded readout chips produced in a commercial 0.25 μ CMOS process. Each chip has 8192 pixels of size 50 × 425 μm2, which leads to about 10 million readout channels in the whole detector system. Test beam measurements were recently carried out at the CERN SPS using a positive proton/pion beam as well as a 158 A GeV/c heavy ion beam (In) with a fixed Pb target. Analysis show good performance of the ALICE chip and assemblies in the positive beam as well as in the high multiplicity In beam. Preliminary results from data analysis show good performance of the SPD and fulfill the ALICE requirements.
Original language | English |
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Pages (from-to) | 424-427 |
Number of pages | 4 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 535 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2004 Dec 11 |
Externally published | Yes |
Event | Proceedings of the 10th International Viennna Conference - Vienna, Austria Duration: 2004 Feb 16 → 2004 Feb 21 |
Keywords
- ALICE
- CERN SPS
- Heavy ions
- Silicon Pixel detector
- Test beams
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation