Difference between revisions of "Pion Meeting June 4 2021 11AM ET"

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=Minutes=
 
=Minutes=
 +
 +
* Pion detector studies (Elham)
 +
** Entire pion donut holding frame changed to vacuum
 +
*** improves pi/e ratio by factor 2
 +
*** still have charged particles reach lucite
 +
*** frame is significant source of background
 +
** Shorter lucite detector and shifted inwards:
 +
*** improves pi/e ratio marginally but not dramatically
 +
** TODO
 +
*** Set the lucite lightguide to vacuum: check whether lightguide or PMT is a big part of the source of background in our lucite
 +
*** Look at hit.phi - hit.vphi (= atan2(hit.vx,hit.vy)): does background come from same or different sector?
 +
*** Draw separate sources independently and zoomed in: one plot each for showermax, concrete/lead, lightguide, lucite close-up with shielding, with number of entries shown on each plot

Revision as of 15:47, 4 June 2021

Back to Main Page >> Pion Meetings

Agenda

  1. Updates on pion detector studies (Elham)
  2. Beam generator simulations (Raj)

Attendance

David, Elham, Julia, Raj, Wouter

Minutes

  • Pion detector studies (Elham)
    • Entire pion donut holding frame changed to vacuum
      • improves pi/e ratio by factor 2
      • still have charged particles reach lucite
      • frame is significant source of background
    • Shorter lucite detector and shifted inwards:
      • improves pi/e ratio marginally but not dramatically
    • TODO
      • Set the lucite lightguide to vacuum: check whether lightguide or PMT is a big part of the source of background in our lucite
      • Look at hit.phi - hit.vphi (= atan2(hit.vx,hit.vy)): does background come from same or different sector?
      • Draw separate sources independently and zoomed in: one plot each for showermax, concrete/lead, lightguide, lucite close-up with shielding, with number of entries shown on each plot
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