(july 19, 2006)
The new extended downstream weak field suppressor is ready.
(may 12, 2006)
The Downstream and Upstream weak field suppressors are ready.
    Tooling
    UPSTREAM
    DOWNSTREAM (EXITFOIL)
The Wake Field Suppressor is made of two 0.075 mm thin CuBe foils, compressed with gear wheel and rack. CuBe is chosen for the good electrical and elastic properties. The 0.075 mm thin CuBe foil can be hardened at 320 degrees Celsius to get better spring properties.

(november 29, 2001)
Another design of the The Wake Field Suppressor, which close the gap when the detectors are 30mm out of the beam.

(august 9, 2001)
New design of the The Wake Field Suppressor, which follows better the contour of the beam pipe.
(april 20, 2001)