TY - GEN
T1 - Emulating the level-1 electromagnetic trigger response using an offline database. Procedure for populating this database from the online information
AU - Becheva, Emilia
AU - Cavallari, Francesca
AU - Paganini, Pascal
AU - Antonelli, Louis James
AU - Lynch, Sean Patrick
AU - Musella, Pasquale
PY - 2010/1/1
Y1 - 2010/1/1
N2 - The Level-1 Trigger plays a major role in the CMS experiment allowing the reduction of the raw event rate at the Large Hadron Collider. Its decision is based on information from the electromagnetic and hadronic calorimeters as well as the muon detectors. The electronics of the electromagnetic calorimeter generate and deliver basic quantities called "Trigger Primitives" which correspond to local energy deposits created by electromagnetic showers. In order to ensure the correct generation of the trigger primitives by the electronics, special software called an emulator has been implemented. It is able to reproduce the ECAL trigger functionalities at the bit level using the same inputs and identical output format. It is configured in exactly the same way as the hardware. The configuration of the electromagnetic hardware trigger requires 5 million parameters stored into an Online Master Data Storage (OMDS) database. This paper will present the procedure used to transfer the parameters from the OMDS to the Offline database, which is used to perform the validation test with the Level-1 Trigger emulator.
AB - The Level-1 Trigger plays a major role in the CMS experiment allowing the reduction of the raw event rate at the Large Hadron Collider. Its decision is based on information from the electromagnetic and hadronic calorimeters as well as the muon detectors. The electronics of the electromagnetic calorimeter generate and deliver basic quantities called "Trigger Primitives" which correspond to local energy deposits created by electromagnetic showers. In order to ensure the correct generation of the trigger primitives by the electronics, special software called an emulator has been implemented. It is able to reproduce the ECAL trigger functionalities at the bit level using the same inputs and identical output format. It is configured in exactly the same way as the hardware. The configuration of the electromagnetic hardware trigger requires 5 million parameters stored into an Online Master Data Storage (OMDS) database. This paper will present the procedure used to transfer the parameters from the OMDS to the Offline database, which is used to perform the validation test with the Level-1 Trigger emulator.
U2 - 10.1109/RTC.2010.5750403
DO - 10.1109/RTC.2010.5750403
M3 - Conference contribution
AN - SCOPUS:79956031067
SN - 9781424471096
T3 - Conference Record - 2010 17th IEEE-NPSS Real Time Conference, RT10
BT - Conference Record - 2010 17th IEEE-NPSS Real Time Conference, RT10
PB - IEEE Computer Society
ER -