DECAL: A Reconfigurable Monolithic Active Pixel Sensor for use in Calorimetry and Tracking
March 06, 2020
April 21, 2020
In this paper we describe the DECAL Monolithic Active Pixel Sensor (MAPS) for digital electromagnetic calorimetry. The sensor consists of a matrix of 64x64 55um pixels, and provides a readout at 40MHz of the number of particles which have struck the matrix in the preceding 25ns. It can be configured to report this as a total sum across the sensor (equivalent to the pad of an analogue calorimeter) or the sum per column (equivalent to a traditional strip detector). Design and operation of the sensor is described, and the results of chip characterisation are reported and compared to simulations.
Keywords—CMOS Image Sensor, configurable, calorimetry, tracking
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