Test and characterization of a prototype silicon-tungsten electromagnetic calorimeter
Abstract
New generation high-energy physics experiments demand high precision tracking and accurate measurements of a large number of particles produced in the collisions of elementary particles and heavy-ions. Silicon-tungsten (Si-W) calorimeters provide the most viable technological option to meet the requirements of particle detection in high multiplicity environments. We report a novel Si-W calorimeter design, which is optimized for γ /π0 discrimination up to high momenta. In order to test the feasibility of the calorimeter, a prototype mini-tower was constructed using silicon pad detector arrays and tungsten layers. The performance of the mini-tower was tested using pion and electron beams at the CERN Proton Synchrotron (PS). The experimental results are compared with the results from a detailed GEANT-4 simulation. A linear relationship between the observed energy deposition and simulated response of the mini-tower has been obtained, in line with our expectations.
- Publication:
-
Nuclear Instruments and Methods in Physics Research A
- Pub Date:
- November 2014
- DOI:
- 10.1016/j.nima.2014.07.019
- arXiv:
- arXiv:1407.5724
- Bibcode:
- 2014NIMPA.764...24M
- Keywords:
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- Calorimeter;
- Electromagnetic shower;
- Silicon pad detectors;
- Physics - Instrumentation and Detectors;
- Nuclear Experiment
- E-Print:
- 13 figures, represents test beam data with PS beam line at CERN