4x5 PMTs layout

Performance for new 4x5 layout. Other changes: opening angle of the prism (32 -> 33.7); last bar length (1225 -> 800)

  • EIC, ePIC, hpDIRC
  • with B-field
  • 3-layer spherical lens with sapphire, r=[62,36]
  • 16x16 pixels MCP-PMTs with HIQ400, CE=95%
  • pi/K @ 6 GeV/c; hitting middle of bar #5 /li>
  • 100 ps time precision
  • geometrical reconstruction with averaged LUT from 15M photons
  • TI with 20k PDF for each particle type. PDF generated with corresponding bar shape.
  • GR with per-PMT and chromatic corrections

Geant4 geometries:

Comparison between different layouts: