Monitoring ATLAS L1 CTP data from P-BEAST

The ATLAS Level-1 Central Trigger Processor combines information from the calori-meters and the muon detectors and takes a decision to accept an event based on a list of selection criteria (trigger items). Busy signals from the detectors and generated dead time by the Central Trigger Processor prevents the buffers to become full. The visualisation of this data is useful to check the functionality of the system. My project during the CERN summer student programme was to develop an application, which produces plots of relevant Central Trigger Processor data and presents the results in an appropriate format for experts and users.