20170427-Septum-Mtg

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Logistic information

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 PARTICIPANT CODE:                  #733110660
 Room IRL:                            <none>

Agenda

1. Guido: Tosca calculation is better but not yet meshed finely enough for accurate results.
2. Iris:
   • Tosca results do show saturation, but do not correctly match onset of saturation with pre-g2p measurements. haplog:3385
   • Q1 files have been opened but not yet meshed.
3. Plan for Iris:
   • check that "residual" is much less than 1, and that the "convergence factors" are 1e-3 or smaller. Guido points out this is important to be sure that Tosca has converged correctly.
   • Also, Iris will check the approximate number of mesh points used in the septum model.
   • show field strength at iron beampipe outer surface over the range of z along the septum.
   • show Bx and By as a function of z-coordinate, offset from the beam center by 1cm in the horizontal (for By) or the vertical (for Bx).
   • Find Bx and By in planes of x vs y, at z coordinates {20, 40, 60, 80, 100cm} downstream of the septum yoke. (perhaps use +/-1m for each coordinate.)
   • open and try to mesh Q1 model
   • probably not until next week: create combined model of Q1 + septum.
   • ask Juliette if she knows location of Q1 relative to septum
4. Plan for Kent:
   • make summary of septum (g2p experience, expected currents, etc) for Friday
   • Try to get information on Q1 locations, currents.

Attendance

Iris H., Kent P., Guido U.

Excused:

Juliette M