June 6, 2019 - Weekly AIPINJ Meeting

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Magnets
  • Solenoid - Three types (2.99" ID beamline, 3.62" ID chopper), under review now, w/ feedback next week
  • 15 deg bend dipole - Reza wants to improve the DS magnet, asking Jay for help (want to give him OD/L of existing real estate (straight, bent)
  • Eliminate MAD coils from CEBAF - CED says there are four pairs (MAD0I06AH/V, MAD0I07H/V, MAD1D00H/V, MAD3D00H/V)
  • Wien Quads - should we build 4 little red quads?
Layout
  • Locate NEW MFA0I03/MFA0I05 CL 15.9cm from faces of chopper
Chopper - What do we want to change?
  1. Improve reproducibility of slits that define the beam (A, B, C, MS)
  2. Use new 3.62" ID chopper solenoids
  3. Improve views creen, how? (chomox and wires, YAG and bleed coating, fiducials, Gubeli style normal w/ mirror so no aspect ratio)
  4. Minimize pumping
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