12.07.2015 Views

SHMS Collimator and Sieve Slit Design

SHMS Collimator and Sieve Slit Design

SHMS Collimator and Sieve Slit Design

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Reproducing pre-2009 distributionsBlue: all apertures(final acceptance)~ 4 msrRed: No dipoleapertureBlue: all apertures(final acceptance)Red: No HB,No Q1, Q2 <strong>and</strong> Q3mech. aperturesHall C UsersMeetingJan 14-15Closest we can getto pre-2009 distributionsSolid angle = 4.7 msr


<strong>SHMS</strong> Dipole Vertical OffsetThree vertical offsetswere studied20, 26 <strong>and</strong> 29 cmHall C UsersMeetingJan 14-15


<strong>SHMS</strong> Dipole Vertical OffsetThree verticaloffsets werestudied20, 26 <strong>and</strong> 29 cmHall C UsersMeetingJan 14-15


Beam Envelopes at the Drift ChamberHall C UsersMeetingJan 14-15


Beam Envelopes at the Drift ChamberHall C UsersMeetingJan 14-15


<strong>Collimator</strong>s<strong>Collimator</strong>s <strong>and</strong> sieve slitswill be placed ~33cm in fromof the Q1.Hall C UsersMeetingJan 14-15A single 25 cm x 17 cm<strong>Collimator</strong> wil be used


<strong>Collimator</strong>sHall C UsersMeetingJan 14-15


<strong>Sieve</strong> <strong>Slit</strong>sHall C UsersMeetingJan 14-15


<strong>Sieve</strong> <strong>Slit</strong>sHall C UsersMeetingJan 14-15


<strong>Sieve</strong> <strong>Slit</strong>sHall C UsersMeetingJan 14-15


A new release of the <strong>SHMS</strong>single arm MC is coming soonHall C UsersMeetingJan 14-15

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