We (AG, JPC and DSD) visited Hall A for some measurements.
Center to center of beamline quads 1 and 3: 90.5 inches.
Center of third beamline quad to end of support structure: 47.5 inches (z=14.8 m)
Center of Q2 is right at edge of support structure.
Top of support structure to beam height is 17 inches.
Looks like detector will stick downstream of balcony where truck needs to cross beamline.
At position of Moller target, post for support structure is not in the way.
Balcony platform to beamline: 53 inches
Distance between beampipe and downstream vertical support post for balcony is 42 inches, but 38 inches if you include junk for electrical wires going up along the post (which can be moved.)
Respectfully submitted, 6/7, DSD.
Kirsten DeNoyelles
Mon Jun 10 15:29:59 EDT 1996
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