Sep 22 – 26, 2014
Centre des Congrès - Aix en Provence, France
Europe/Zurich timezone

The CMS Central Hadron Calorimeter DAQ System Upgrade

Sep 23, 2014, 9:50 AM
25m
Room Milhaud (Centre des Congrès - Aix en Provence, France)

Room Milhaud

Centre des Congrès - Aix en Provence, France

14 boulevard Carnot 13100

Speaker

Andrew James Whitbeck (Fermi National Accelerator Lab. (US))

Description

The VME-based data acquisition electronics of the CMS hadron calorimeters will be replaced with a μTCA-based system starting in 2014 and continuing through 2018. The primary new components are the μHTR and AMC13 modules. The μHTR buffers data from the detector and creates trigger primitives. The AMC13 accepts the clock and trigger from the global DAQ system, distributes the clock to the μHTR and the on-detector electronics, and concentrates data for shipping back to the DAQ system. We report on the design, development status, and schedule for the new DAQ system.

Summary

The CMS central hadron calorimeters will undergo a complete replacement of their data acquisition system electronics. The replacement is phased, with portions of the replacement starting in 2014 and continuing through LHC Long Shutdown 2 in 2018. The existing VME electronics will be replaced with a μTCA based system. New on-detector QIE electronics cards will be transmit data at 4.8 GHz to the new μHTR cards residing in μTCA crates in the CMS electronics cavern. The μTCA crates are controlled by the AMC13, which accepts system clock and trigger throttling control from the CMS global DAQ system. The AMC13 distributes the clock to the μHTR and reads out data buffers from the μHTR into the CMS data acquisition system. The AMC 13 also provides the clock for in-crate GLIBs which in turn distribute the clock to the on-detector front end electronics. We report on the design, development status, and schedule of the DAQ system.

Primary author

Jim Hirschauer (Fermi National Accelerator Lab. (US))

Co-author

Andrew James Whitbeck (Fermi National Accelerator Lab. (US))

Presentation materials