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Measurements and Results

Each of the three fiber bundles tested was inserted in turn in the coffin and the trigger counter pair was positioned at five different locations along the fiber length, shown in Table 2. The same PMT's were used to test all three fiber bundles, thereby assuring that the PMT gain or transit time as a function of HV stability was not a factor in the measurements.


Table 2: Geometry of length scan measurements. All distances are with respect to counter FL (fiber left). All three bundles were in loose mode configuration, i.e. inside the black tubing.
Fiber Bundle A (cm) B (cm) C (cm) D (cm) E (cm)
Kuraray 20.0 152.0 267.5 221.5 78.0
Pol.Hi.Tech. single 22.0 157.0 273.0 228.5 70.0
Pol.Hi.Tech. double 30.0 158.5 276.0 214.0 80.0




Subsections
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Next: TDC Information Up: Tests with Cosmic Rays Previous: Setup
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2001-10-29