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Online Event Display ?

Time: 08:11:12 Run: 18012 Snarl: 36871 ID: Multiple Muon. Online Event Display ?. Propose setting up a Real-Time ONLINE Event Display for local and remote use. Fairly basic display of 3D (i.e. DeMuxed) hits. Based on existing ONLINE and OFFLINE software.

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Online Event Display ?

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  1. Time: 08:11:12 Run: 18012 Snarl: 36871 ID: Multiple Muon Online Event Display ? • Propose setting up a Real-TimeONLINE Event Display • for local and remote use. • Fairly basic display of 3D (i.e. DeMuxed) hits • Based on existing ONLINE and OFFLINE software Mark Thomson, Cambridge

  2. Motivation and Functionality Motivation • For remote control room : see the events as they are • recorded - verification that all is well (or not) • Outreach : seeing the events as they are recorded always • impresses the public/potential new grad. students • Publicity : good for talks/lectures if one can show the • detector in action Functionality • Fairly basic display : {UZ, VZ and XY} • + some history : able to recall last cosmic, multiple-muon, • neutrino candidate • Non-interactive : not meant to compete with the OFFLINE • event display • + MUST BE FAST to keep up with event rate Mark Thomson, Cambridge

  3. LOCAL (e.g. SOUDAN, FNAL) Dispatcher OEDServer Remote sites OEDDisplay OEDDisplay OEDDisplay Possible Architecture • OEDServer runs locally – processes event and produces 3Dhits • OEDDisplays connect via TCP/IP Sockets • OEDServer sends compacted DeMuxed UVZQ hit list – minimal • network traffic ~ 1kbyte/second • - no sending of windows across network ! • OEDDisplays would display hits using ROOT based GUI • Multiple displays can connect to single server Mark Thomson, Cambridge

  4. Work Required OEDServer • Set up a dispatcher client – probably running on • its own PC • Re-use rcServer Socket Communications code • DeMuxing : use AltDeMux (100ms/cosmic) • - easily sufficient to keep up with FARDET data • Produce 3D hits – code already used in AltDeMux OEDDisplay • Re-use rcGui comms and basic environment • Implement basic display • - code already in hand Require little new code ! If Desired, could be put together fairly rapidly Mark Thomson, Cambridge

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