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

The CMS Hadron Calorimeter Detector Control System Upgrade

Sep 23, 2014, 4:49 PM
1m
Centre des Congrès - Aix en Provence, France

Centre des Congrès - Aix en Provence, France

14 boulevard Carnot 13100
Poster Systems First Poster Session

Speaker

Mehmet Ozgur Sahin (Deutsches Elektronen-Synchrotron (DE))

Description

The CMS hadron calorimeter detector control system provides 40.08 MHz LHC clock to the front end electronics as well as supplying synchronization signals and I2C communication. Pedestals and diagnostic bits are controlled, and temperatures and voltages are read out. SIPM temperatures are actively stabilized by temperature readback and generation of correction voltages to drive the Peltier regulation system. Overall control and interfacing to databases and experimental DAQ software is provided by the software CCM Server. We report on design and development status, and implementation schedule of this system.

Summary

The CMS hadron calorimeter detector control system provides 40.08 MHz LHC clock to the front end electronics as well as supplying synchronization signals and I2C communication between front end modules and the central DAQ software. The next generation front end controller (ngFEC) is a microTCA crate positioned in the CMS underground service cavern. A microTCA crate controller hub (MCH) and an AMC13 board sit on central slots of the ngFEC crate while the other AMC slots are occupied by the CERN-developed Gigabit Link Interface Boards (GLIB), enhanced with custom firmware. Pedestals and diagnostic bits are controlled, and temperatures and voltages are read out. SiPM temperatures are actively stabilized by temperature readback and generation of correction voltages to drive the Peltier regulation system. The on-detector controller, the ngCCM, eliminates single-point failures and improves performance compared to the current system. Bidirectional communication and clock distribution with the ngCCM is via ngFEC GLIB. Each of the GLIB cards will be able to control 4 ngCCMs. Overall control and interfacing to databases and experimental DAQ software is provided by the software CCM Server. We report on design and development status, and implementation schedule of this system.

Primary author

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

Co-author

Mehmet Ozgur Sahin (Deutsches Elektronen-Synchrotron (DE))

Presentation materials