CERN Accelerating science

ATLAS Slides
Report number	ATL-TILECAL-SLIDE-2012-527
Title	Design of a New Switching Power Supply for the ATLAS TileCal Front-End Electronics
Author(s)	Drake, Gary (Argonne National Laboratory)
Corporate author(s)	The ATLAS collaboration
Submitted to	Topical Workshop on Electronics for Particle Physics, Oxford, UK, 17 - 21 Sep 2012
Submitted by	drake@anl.gov on 15 Sep 2012
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Abstract	We present the design of an upgraded switching power supply for the front-end electronics of the ATLAS Hadron Tile Calorimeter. The new design features significant improvement in noise, improved fault detection, and improved reliability, while retaining the compact size, water-cooling, output control, and monitoring features. We discuss the steps taken to improve the design. We present the results from extensive radiation testing to qualify the design, including SEU sensitivity. We also present our reliability analysis. Production of 2400 new bricks for the detector is in progress, and we present preliminary results from the production checkout.