Possible Locations

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Possible Locations Possible (unmodeled) restrictio

description

Possible (unmodeled) restrictions. Possible Locations. Possible Checks. 0th order: open up and look 1st order: Point-parallel-point optics to image shadows More wobbler studies to measure (a,b) acceptance Scattering from thick foil to measure (a,b,d) acceptance. Possible Locations. - PowerPoint PPT Presentation

Transcript of Possible Locations

Page 1: Possible Locations

Possible Locations

Possible (unmodeled) restrictions

Page 2: Possible Locations

Possible Checks

• 0th order: open up and look

• 1st order:– Point-parallel-point optics to image

shadows– More wobbler studies to measure (a,b)

acceptance– Scattering from thick foil to measure (a,b,d)

acceptance

Page 3: Possible Locations

Possible Locations

• Just before Q9 (maximum y envelope)

• Any of the BCMs after mass slits

• Interceptor position

• Other ideas?

Page 4: Possible Locations

Detector schemes

• Solar cell arrays– Pros: sensitive, cheap– Cons: energy, position resolution poor,

• DSSSD– Pros: E,x,y position resolution OK– Cons: expensive, sensitive

• Scintillating fibers– Pros: sensitive, good position resolution– Cons: complex

Page 5: Possible Locations

• (x,y)=0• (a,b)=±20mrad• dE=±4%• SLITC=25mm• SLITC=15,25mm• SLITF=45mm

Substantial loss at charge slits, but none beyond that

Page 6: Possible Locations

• (x,y)=0• (a,b)=±20mrad• dE=±4%• SLITC=45mm• SLITC=45mm• SLITF=45mm

No more loss at charge slits…

…but additional loss points crop up

Page 7: Possible Locations

• (x,y)=0• (a,b)=±20mrad• dE=±4%• SLITC=45mm• SLITC=45mm• SLITF=45mm

ED1 field clamp limits rays

Page 8: Possible Locations

• (x,y)=0• (a,b)=±20mrad• dE=±4%• SLITC=45mm• SLITC=45mm• SLITF=45mm

Even if they make it past ED1, ED2 field clamp limits rays