SLAC E158 Møller and ep Detectors

Our group was responsibile for construction of the Møller and ep detectors. These are calorimeters consisting of 200 copper plates with about 35,000 embedded fused silica ("quartz") fibers coming out to 60 photomultiplier tubes. Each detector surrounds the scattered beam giving coverage over the full azimuthal range.

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CAD drawings:


56_Slices_1.gif 56 out of 100 Møller and ep slices, showing stacking (also as TIFF)
pipe_partial_moller_e-p.gif Partial Møller and ep stack with pipe (also as TIFF)
pipe_singles_and_cookies.gif Single Møller and ep slice with pipe and Møller fiber optic clamping "cookies" (also as TIFF)
singles_with_cookies.gif Single Møller and ep slice with pipe, Møller and ep fiber optic clamping "cookies", and Møller cookie mounting plate (also as TIFF)
Fiberoptic_Support_Section.gif Fiber optic support section, exploded view

Construction photos:


September 2000: Cutting copper; base plate; Møller fiber bending jig

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November 2000: First Møller segment; gluing ep fibers; shop progress

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December 2000: Test stacking of Møller and ep rings

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January 2001: Assembly of Møller and ep rings

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February 2001: Shipping of Møller and ep rings

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March 2001: Phototube plate

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Last modified: Thu Sep 1 15:03:32 EDT 2005