Trigger Framework Tutorial Dan Edmunds Michigan State University

TFW Tutorial Outline • DAQ Context and Beam Structure in Run II: – Current

TFW Tutorial Outline (continued) • Readout to Level 3 Function of the Trigger Framework

TFW Tutorial Outline (continued) • The following web pages and references give more information

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Trigger Framework Tutorial Dan Edmunds Michigan State University 14 -Apr-2009 The purpose of this talk is to present the general features of the Trigger Framework and its associated components in a tutorial presentation. This is done by showing the functions of the Trigger Framework from the viewpoint of a number of different systems.

TFW Tutorial Outline • DAQ Context and Beam Structure in Run II: – Current Run II Beam Structure and Slang Terms – DAQ System Buffering • Scope of the System, Physical Location, Hardware Implementation – Location in MCH – Basic Cards in the Trigger Framework • Level 1 Functions of the Trigger Framework – Location of the Trigger Framework in making the Level 1 Trigger Decision – Simplified block diagram of the Trigger Framework L 1 Decision logic • Level 2 Functions of the Trigger Framework – Information to and from the L 2 Global Stage – Simplified view of issuing the L 2 Trigger Decisions • Routing Master Function of the Trigger Framework – Trigger Framework Information to the Routing Master

TFW Tutorial Outline (continued) • Readout to Level 3 Function of the Trigger Framework – Trigger Framework Readout to a standard VRB crate – Block Diagram of a standard VRB crate. • Trigger Control Computer Connections to the Trigger Framework – Block Diagram of the Trigger Control Computer Connections to the Trigger Framework – Function of and data carried on these connections – Example of Commands from COOR • Scalers and Monitoring Functions of the Trigger Framework – – • Sources of Monitoring Information Trigger Monitoring and Luminosity Monitoring Trigger Operation Monitoring vs Physics Analysis Monitoring Content of the Monitoring Information Initialize and Cold Start of the Trigger Framework – What happens at Trigger Framework Initialize – Cold Start of the Trigger Framework and associated hardware

TFW Tutorial Outline (continued) • The following web pages and references give more information about the D-Zero Run II Trigger Framework. – http: //www. pa. msu. edu/hep/d 0/l 1/framework/tfw_tutorial_march_2003. html – http: //www. pa. msu. edu/hep/d 0/l 1/framework/tfw_tutorial_april_2009. ppt – http: //www. pa. msu. edu/hep/d 0/l 1/framework/tfw_tutorial_april_2009. pdf – Article title: The D 0 Level Reference: NIMA 48840 1 Trigger System Journal title: Nuclear Inst. and Methods in Physics Research, A DOI information: 10. 1016/j. nima. 2008. 036 Available online at: http: //dx. doi. org/10. 1016/j. nima. 2008. 036