Present: Fritz Caspers,
Elias Métral, Federico Roncarolo, Benoit Salvant.
Measuring model structures
try to minimize the alignement errors
we should vary the gap systematically
to benchmark theory and assess the effect of the finite
length on smaller impedance lengths
try to displace the coil with respect
to the axis to assess non linear wakes
Collimators
make bigger coil
measure the graphite jaws with
reference to copper jaws
get a setup ready for measureing the
real collimator
PIMS
measurement of nominal and extended
range
minimize misalignments
try to assess the effect of bad
contact (remove contacts with Kapton film for instance, or
use only the contacts without the bellow to control the
setup)
check whether there is a difference
between conforming and non conforming bellows
SLAC Phase 2 collaboration
answer by email on Wednesday
mention the problems expected with
the proposed design (resonances, contacts, specs on material
and mechanical design very tight due to impedance: is it
really justified?) -> possibility to use azimuthal cuts or
small holes to release stress.
we should present at one upcoming
collimation working group, mentioning these issues