Characterization and performance of an upgraded front-end-board for NectarCAM

Abstract

This paper presents an analysis of the updated version of the Front-End Board (FEB) for the NectarCAM camera, developed for the Cherenkov Telescope Array Observatory (CTAO). The FEB is a critical component responsible for reading and converting signals from the camera's photo-multiplier tubes into digital data and generating module-level trigger signals. This study provides an overview of the design and performance of the new FEB version, including the use of an improved NECTAr3 chip with advanced features. The NECTAr3 chip contains a switched capacitor array for sampling signals at 1 GHz and a 12-bit analog-to-digital converter (ADC) for digitization upon receiving a trigger signal. The integration of the new NECTAr3 chip results in a significant reduction of NectarCAM's deadtime by an order of magnitude compared to the previous version. The paper also presents the results of laboratory testing, including measurements of timing performance, linearity, dynamic range, and deadtime, to characterize the new FEB's performance.

References in corpus (9)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Design Concepts for the Cherenkov Telescope Array
• Monte Carlo design studies for the Cherenkov Telescope Array
• A NECTAr-based upgrade for the Cherenkov cameras of the H.E.S.S. 12-meter telescopes
• Design of light concentrators for Cherenkov telescope observatories
• Measurement of performance of the NectarCAM photodetectors
• Reconfigurable ASIC for a Low Level Trigger System in Cherenkov Telescope Cameras
• NectarCAM : a camera for the medium size telescopes of the Cherenkov Telescope Array
• The NectarCAM Timing System