2017/03/24 by A. L. Steinhebel, J. E. Brau, Steinhebel, Amanda +1
Engineering · #Advancements in Semiconductor Devices and Circuit Design #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Integrated Circuits and Semiconductor Failure Analysis #Semiconductor materials and devices
paper · pdf · doi:10.48550/arxiv.1703.08605
openalex publication_date 2017/03/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Studies of the response of the SiD silicon-tungsten electromagnetic calorimeter (ECal) are presented. Layers of highly granular (13 mm2 pixels) silicon detectors embedded in thin gaps (~ 1 mm) between tungsten alloy plates give the SiD ECal the ability to separate electromagnetic showers in a crowded environment. A nine-layer prototype has been built and tested in a 12.1 GeV electron beam at the SLAC National Accelerator Laboratory. This data was simulated with a Geant4 model. Particular attention was given to the separation of nearby incident electrons, which demonstrated a high (98.5%) separation efficiency for two electrons at least 1 cm from each other. The beam test study will be compared to a full SiD detector simulation with a realistic geometry, where the ECal calibration constants must first be established. This work is continuing, as the geometry requires that the calibration constants depend upon energy, angle, and absorber depth. The derivation of these constants is being developed from first principles.