Pion Beta Active Target


In the 1999 beamtime we wanna use a segmented target, consisting of 9 elements. The total scintillator diameter is 40 mm, the length is 50 mm. Here are some pictures from the assembly:

Active Target Assembly    Target after wrapping with Al foil, 9 elements just held by a rubber band

Active Target Assembly     Same, just standing on the lightguides

Active Target Assembly     After wrapping the target with black tape (Scotch 33)

Active Target Assembly     Target lightguide side

Active Target Assembly    Lightguides inside the support crown

Active Target Assembly    This picture shows the target numbering scheme (as seen from beam)

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H.P. Wirtz , 03-May-1999
last update:  03-May-1999

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