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Reusing RICH Prototype for Cosmic Rays Setup: A Didactic Approach

This project explores the repurposing of the RICH prototype for a cosmic rays detection system, showcasing its applications during test beams in TCC8 from 2007 to 2009. The setup incorporates aerogel bricks as a radiator and adapts the spherical mirror for a proximity focusing Cherenkov detector. With minimal modifications required, most components, including electronics, are readily available, providing a hands-on learning experience for students. The initiative aims to reconstruct cosmic rays-induced Cherenkov rings while effectively recycling existing equipment for educational purposes.

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Reusing RICH Prototype for Cosmic Rays Setup: A Didactic Approach

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  1. A RICH-likecosmicrayssetup M.Lenti

  2. The RICH prototype • The RICH prototypewasused in 2007 and 2009 test beams in TCC8 • 2 NIM papers out ofthem, p-mseparationdemonstrated • RICH prototype vessel reused in NA62 • Whataboutall the rest (PM flanges, Mirror, mirrorsupport, electronics, etc.)? M.Lenti

  3. Cosmicrayssetup • Trytorecycle part of the RICH prototypefor a didacticcosmicrayssetup • Neon asradiatornotpracticalforcosmics • Useaerogelbricksasradiator • Not a RICH but a proximityfocusingCherenkov detector • Re-use the sphericalmirror in “flat mode” M.Lenti

  4. Cosmicsrayssetup Aerogel PM disk Winston Cones disk “vessel” light tight, not gas tight 40 cm air mirror m M.Lenti

  5. PM disk Electronics Preparation Side wallstobedone Mirrorcradle Winston Cones Align motor Cosmicchariot M.Lenti Closing flange

  6. Aerogel • Matsushita SP-30 (courtesyof Clara MatteuzzifromLHCb), nothydrophobic • 3 bricksof 12x12x1 cm3 each • n=1.03 (qmax = 250 mrad, pm(thesh)=430 MeV/c) • Distaerogel-mirror 40 cm • Rring = 2x40x0.250 = 20 cm (as in test beam) • Nhit 8-10 per cosmicevent M.Lenti

  7. Didacticalstrategy • Align the mirror • Trigger with a coupleofscintillator • ReconstructcosmicraysinducedCherenkov ring • ….. M.Lenti

  8. Conclusions • Attempttoreuse part of the RICH prototype • Minimal work needed (mostofpieces, electronics, DAQ) alreadyavailable • UsefulLabexerciseforstudents • PMsonlytemporarilyavailable (400 used): latertobeinstalled in the NA62 RICH M.Lenti

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