CERN - CMS Experiment

CMS HCAL Data Concentrator

The CMS experiment at the Large Hadron Collider in Geneva, Switzerland is designed to study the collisions of proton particles at very high energies. This reproduces conditions which occurred just after the "big bang" in which the universe was created, and will allow scientists to study particles such as the elusive Higgs Boson which have not been seen since.

The EDF built two generations of Data Concentrator Cards which are used to process data from the Hadron Calorimeter, a part of the CMS detector which measures the energy of particles.

[Engineering Technical Documentation]


HTR SLB 2

HTR SLB 3

New DCC Bottom View

New DCC Top View

CMS HCAL Trigger Optical Links

The oSLB cards (optical Serial Link Boards) transmit muon trigger primitives from HO to the RPC trigger

[Engineering Technical Documentation]

No images for this project

CMS Source Driver

The CMS Hadron Calorimeter absolute energy calibration is performed by moving a radioactive source of known energy through the calorimeter inside small tubes.  The radioactive sources are moved on flexible wires, which are controlled by pneumatic and electrical motors.  The EDF is building microcontroller-based electronics to control the source sources from a design done by the University of Iowa.

[Engineering Technical Documentation]


Air Drive Backplane Bottom

Source Driver Backplanes

Air Drive Panel Back View

Electric Drive Panel Back View

Electric Drive Heatsink View

Air Drive Heatsink View