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HF PMT Sorting Proposal – V2

HF PMT Sorting Proposal – V2. Ugur Akgun. Sorting Proposal. Low eta – H igh gain High eta – Low gain Low gain EM (long fiber) High Gain Hadronic (short fiber) 36 Robox , 13 t owers each, 864PMTs Sort for every 900 PMT among itself, cut The high and low gain tails .

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HF PMT Sorting Proposal – V2

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  1. HF PMT Sorting Proposal – V2 Ugur Akgun

  2. Sorting Proposal • Low eta – High gain • High eta – Low gain • Low gain EM (long fiber) • High Gain Hadronic (short fiber) • 36 Robox, 13 towers each, 864PMTs • Sort for every 900 PMT among itself, cut • The high and low gain tails. • 4 Quarter x 3 rings = 12 EM group • 4 Quarter x 3 rings = 12 HAD group

  3. First 900 PMT Sorting – EM Section

  4. First 900 PMT Sorting – HAD Section

  5. Ideas • A uniform gain distribution for one HF is outlined from the foist 900 PMT sample. • Other than the fringes at the edge of the sample, we can get gain uniformity within 2-3% • EM and HAD, and 4 Quadrant separation would work if we can deliver different HV for each group (total 24 groups) • As the operation gain is decided, we can develop sorting and HV distributions for each group.

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