First beam operation of the CMS calorimeter trigger synchronization boards

Author

David, Andre ; Almeida, Nuno ; Da Silva, José ; Silva, Pedro ; Varela, João

Author_Institution

LIP, Lisbon

fYear

2007

fDate

April 29 2007-May 4 2007

Firstpage

1

Lastpage

4

Abstract

The CMS experiment uses information from its electromagnetic and hadronic calorimeters and muon detectors to decide whether to readout the whole detector. For such a task to be successful, all trigger primitives pushed through the trigger decision tree must be flawlessly aligned in time for operation at 40 MHz. Both calorimeters in CMS use the Synchronization Link Board for this purpose. In this article we report on the results of tests of this board using realistic beam conditions, which demonstrate the soundness of the adopted architecture and synchronization principle.

Keywords

muon detection; particle calorimetry; position sensitive particle detectors; readout electronics; synchronisation; trigger circuits; CMS calorimeter; beam operation; electromagnetic calorimeters; hadronic calorimeters; muon detectors; readout system; trigger decision tree; trigger synchronization boards; Clocks; Collision mitigation; Decision trees; Detectors; Electrons; Histograms; Mesons; Phase detection; Synchronization; Timing; CMS; Calorimeter detector; Synchronization; Trigger Systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Real-Time Conference, 2007 15th IEEE-NPSS

Conference_Location

Batavia, IL

Print_ISBN

978-1-4244-0866-5

Electronic_ISBN

978-1-4244-0867-2

Type

conf

DOI

10.1109/RTC.2007.4382862

Filename

4382862