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MPPC の回復時間

MPPC の回復時間. 検出器ミーティング 2007.5.1 須藤. MPPC. LASER. Recovery time 　（遅い成分）. setup. pedestal. LASER λ : 408 nm width : 52 ps output : 130 mV. ADC を使って測定. 回復の遅い成分. LASER - LED. LED - LASER. [ μs ]. Chi2 / NDF = 18.8 / 11. Chi2 / NDF = 7.4 / 8.

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MPPC の回復時間

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  1. MPPCの回復時間 検出器ミーティング 2007.5.1 須藤

  2. MPPC LASER Recovery time　（遅い成分） setup pedestal LASER λ : 408 nm width : 52 ps output : 130 mV ADCを使って測定

  3. 回復の遅い成分 LASER - LED LED - LASER [ μs ] Chi2 / NDF = 18.8 / 11 Chi2 / NDF = 7.4 / 8 • output = ( 100 – par(1) ) * (1 – exp[- par(0) * t ] ) + par(1) [ % ] LASER – LED : τ1 = 1 / par(0) = 4.28 ± 0.23 [ μs ] par(1) = 88.3 ± 0.16 [ % ] LED – LASER : τ2 = 4.32 ± 0.19 [ μs ] , par(1) = 56.1 ± 0.60 [ % ]

  4. MPPC LASER Recovery time　（速い成分） setup LASER λ : 408 nm width : 52 ps output : 130 mV Deley time

  5. 回復の早い成分 uncertainty Chi2 / NDF 2.0 10.08 / 10 0 40.4 / 10 遅い成分の　縦軸切片の値 • output = ( 88.3 – par(1) ) * (1 – exp[- par(0) * t ] ) + par(1) [ % ] LASER – LED : τ = 3.93 ± 0.13 [ ns ]

  6. LED先　LASER後

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