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Cascade and Flasher Workshop Welcome!

Join us for a workshop focused on cascade and flasher analysis and simulation. Discuss goals, explore flasher verification, tackle specific tasks, and develop cascade algorithms. Work together towards a common framework and simulations.

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Cascade and Flasher Workshop Welcome!

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  1. Cascade and Flasher WorkshopWelcome! • Logistics • Agenda • Goals Spencer Klein, LBNL

  2. Logistics • Talks Monday and Tuesday mornings • Otherwise: Work Time • Small groups and individuals • Progress Reports Wed. morning and closeout Wed. afternoon. • Monday, Tuesday in Perseverance Hall • Wednesday in Bldg. 2, Room 100B • Separate ‘breakout’ room available in afternoons • Wireless in all conference rooms • Some ethernet available. Ask for a cable if you need one

  3. Talks on the web • I will put all of the talks on the web • Please email me your talks!

  4. Talks • Monday: • ???: A users guide to the flashers” Mark Krasberg • “Flashers, Brightness Calibrations and Module Orientation” Chris Wendt • “Flasher Analysis with AMANDA” Kurt Woschnagg • “How to simulate cascades and flashers” Tom McCauley • “Characteristics of Flasher data” (Sourav Mandal) • Tuesday • “Flashers and Hole Ice” (Doug Rutledge) • “Analyzing flasher events with Renew” (Tom McCauley) • “Waveform based reconstruction” (Sean Grullon) • “String 21 flashers in AMANDA" Dave Hardtke • “Flasher reconstruction” (Dima Chirkin) • TBC: “Characteristics of Cascade Simulations” Spencer Klein

  5. Goals • Goals: Push forward with cascade and flasher analysis • Produce Flasher verification plots • What are the most appropriate plots? • Ice properties, timing, geometry, … • Simulate Cascades and Flashers • Find problems in simulations • E.g. 1.pe. Pulses in simulation are ~ 2-3X larger than in data • Develop cascade algorithms using flasher (& simulation) data

  6. Flasher Verification • What can the flashers tell us about how well IceCube is working? • What can the flashers tell us about ice quality? • We are ~ 300 m from AMANDA – is the ice any different? • What can the flashers tell us about hole ice? • Do we need additional runs with different configurations? • Not all LEDs? • AMANDA lasers

  7. Flashers - Specific Tasks • Understand Flasher characteristics (nhits,…) • Systematic Timing verification (new flasher data) • Simulation for comparison data • Solve for individual resolution • Geometry verification (LLH reconstruction) • Location of DOM 60? • Start on inter-string geometry calibrations • Energy/Brightness calibrations • Ice properties • Hole Ice (probably not) • Orientation effects • Photonics for flashers? • Comparison of flasher data and cascade simulations • AMANDA looking at IceCube flashers

  8. Cascade and Flasher simulation • IceTray simulations may finally be ready for physics use • Input/output & calibrations working • Photonics tables • Generate events and look at them • Compare flasher data and flasher simulations

  9. Cascade Algorithm Development & Testing • Many different cascade algorithms, in different stages of development • What are similarities vs. differences? • What are appropriate metrics for comparing algorithms & how should they be weighted? • Vertex & energy reconstruction accuracy • Background rejection • Speed & robustness (for use at pole) • Can we make more progress by working together? • Common framework • Common simulations

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