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Data Analysis Framework for PMT/DOM Characterization in Physics Engineering

In March, DOM will start producing data for testing hardware, verifying processes, and planning PMT/DOM characterization and analysis. Explore software tools, specific data schemes, and test schedules. The framework includes software environment, code layers, interfaces, and data schemas. Data streams, tests systems, and test data analysis are crucial for short, mid, and long-term goals. Utilize the framework for event studies, data streams, and configuration monitoring. Develop a comprehensive approach to DOM testing and analysis.

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Data Analysis Framework for PMT/DOM Characterization in Physics Engineering

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  1. Physics/engineering Analysis Framework • In March DOM will begin spitting up data. We are interested in testing the hardware, verifying various things, and planning for PMT/DOM characterization and data analysis. • Software tools • Specific data • Scheme for using both at the same time • End of the food chain … test schedule & discussion of required test data. Jodi Lamoureux/LBNL IceCube DAQ Software Oct 28-29, 2002

  2. Physics/engineering Analysis Framework • Software Environment • Framework (faye) • Layers of code to support functionality & data model • Interfaces: • functionality: configure(), event(), finish(), etc() • data streams, disk formats, internal data representations • user interfaces, graphics interfaces • Data Schemas (XML): specific descriptions • EngineeringSchema1 - exists • MonitoringSchema1 – defined by April??? • StrawmanAnalysisSchema1 – cowen/sullivan Jodi Lamoureux/LBNL IceCube DAQ Software Oct 28-29, 2002

  3. Data Streams within the framework • Data tag: (time, key) dataValue Stream 1 Stream 2 findNearest(stream,t) findNext(stream,t) findPrevious(stream,t) time Jodi Lamoureux/LBNL IceCube DAQ Software Oct 28-29, 2002

  4. Test System • Both EngineeringSchema1 and MonitoringSchema1 are produced by the DOM and streamed out by the HUB, but on different time scales. • Some “DOM tests” are in the application and may be written to text files. In some cases it would be nice to have a standard plot. (trigger rate vs disc. thresh.) • Other data sources • Use local coincidence to “trigger” test DOM • Use additional DOM cards to readout “waveform” and use local coincidence to trigger test DOM. • Need to define any non-DOM/HUB streams … are there requirements? Ice Test (framework) DOM HUB File/Plot File Jodi Lamoureux/LBNL IceCube DAQ Software Oct 28-29, 2002

  5. Test Data • EngineeringSchema1 • tagged(domId, time) • localTime • triggerBits(flasher, spe, mpe, upper, lower, cpu) • flashADC • ATWD • MonitoringSchema1 (hopefully = string18 + DAC setValues) • domId, system time, 2 clock times • moni status, fpga status, • 4 DOMCOM ADCs & status bits • dom power • dom current • voltages(dynode, anode, total) • DAC set values Jodi Lamoureux/LBNL IceCube DAQ Software Oct 28-29, 2002

  6. Test Data Analysis • Short term • March 1 EngineeringSchema1 … waveform display + fex • w/o rap time, only sequence, (would rough time be useful?) • April 1 ??? MonitoringSchema1 … display with set values • dom “set values” & system time • ??? EngineeringSchemaN … functions of time or set values • with rap time • Mid term • required external data streams … characterization/calibration of PMT/DOM • framework acts as poor man’s event builder … event studies are possible • Long term • full DAQ … configuration, monitor, calibration, event streams available for analysis. Jodi Lamoureux/LBNL IceCube DAQ Software Oct 28-29, 2002

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