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HBD Update (brief!)

HBD Update (brief!). TK Hemmick. Spring Test: VERY few tracks. Avoiding the shadow of the local beam dump and other obstacles moved HBD out to about 40 degrees. Overwhelmingly 4-scintillator-trigger is false coincidence. Actual coincidence is pion dominated.

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HBD Update (brief!)

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  1. HBD Update(brief!) TK Hemmick

  2. Spring Test: VERY few tracks • Avoiding the shadow of the local beam dump and other obstacles moved HBD out to about 40 degrees. • Overwhelmingly 4-scintillator-trigger is false coincidence. • Actual coincidence is pion dominated. • New algorithms for noise suppression recover majority of noisy events. Frodo and the One Ring ~100 tracks, 2Mevts Thomas’ Ring?

  3. EIC R&D Panel • Tracking/PID “consortium” requests $794,365 over two years. • SoLID Collaborators: (shared postdoc) • Stony Brook University, (TKH…) $153,404 • University of Virginia, (Nilanga, Kondo, …) $107,580 • Thomas Jefferson National Lab (Alexandre) <stuff> • ONLY major request recommended for full finding. • Fiscal Year Phase trouble: • Year One $$$ split over fiscal year (October). • Invest mostly in new Postdoc until October. • NOTE: EIC designs have light & heavy Fwd RICH. • No one is yet funded for heavy RICH R&D.

  4. Beam @...DESY? • Want a beam instead of scattered *(@)! • Options: • DESY (electrons, good access) • CERN (mixed beam, good access) • SLAC (electrons, poor access) • Shipping a live CsI-GEM??? • Jeb Ferrucci: Fed Ex “Custom Critical”. • Changes: • Segmented GEM to eliminate failures. • Detect Trips w/ capacitively coupled chain. • Hex-shaped pads & new software. GS: Stephanie Zajac UGS: Marie Blatnik UGS: Carl Cheung

  5. Mirror Makers • Big Mac Chamber: • 8’ diameter • 6’ tall • Currently: • Completed clean-out of “scattering stuff”. • Repaired large cryo-pump • 2 x 10-6Torr • Orders for electron gun, power supply, thickness monitor, etc… must wait for fiscal year boundary.

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