E949 Trigger Counters


E949 Trigger Counters (T-counters)

The E949 T-counters are 11.84 cm X 52.0 cm X 7 mm and are readout with 16 fibers with PMT's at both ends. A report documenting these counters is available as technote K-013 . A T-counter web-page is also available. The PMTs are green extended Russian tubes, the FEU-115M, which are similar to the E787 T-counter PMTs (HPK R1398 ). The 115M have better QE in the green, but somewhat worse s.p.e. resolution.

Full Counter

Fiber holder

Wrapping Removed

Close-up

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