20180424-Optics-Mtg

Back to Main Page >> HRS_Optics_Mtg

previous meeting << >> following meeting

Logistic information

 BlueJeans calling instructions:
 Toll-Free Number (U.S.&  Canada):  888-240-2560
 International toll number:         408-740-7256
 PARTICIPANT CODE:                  #9989030149
 Room IRL:                            <none>

Agenda

Optics g4hrs update

Minutes

• Tyler review collimator
  • Width of >8cm has diminishing returns on dR/R
  • Bottoming at out ~1.25% on dR/R with 2% systematic on A, 85% polarization
  • Getting 750MHz in single arm
  • Noticed that PREX-II proposal considered 925-1000 MeV beam and had 0.8% - likely the difference
  • Will look at trying to change collimator to smaller Q2 at expense of central angle
  • HPS will have sensitivity to our selected beam energy

• Ryan looking at transport and FP systems
  • Data look inconsistent as we understand transformation
  • Will look at in code with Seamus over next week
  • x offsets not understood either, likely just fot out
    • Dipole not set correctly?