Tagging Effeciency from Reference counter 2007/10/17 Alan Iguchi Tagging Efficiency in Oct2007 •Low Efficiency. •Move Efficiency,but form is don’t change. Some of Tagging Efficiency Try to measure Efficiency by Reference Counter • We put Reference Counter in front of Lead Glass. (Use Old BPM Veto Counter) • And Try to measure Efficiency by it. – How to analysis • (Ref Counter TDC peak – back Ground)/(Tagger Hit Pattern) • Normalize at 1/75 TDC by First signal peak TDC by Delayed signal BG(same bin peak) Result Efficiency by Ref.Counter Efficiency by LEAD GLASS It seems that reproduction form. But,difficult to see difference of Efficiency Value. 続行 • • • • • コンバーターの厚さ レート 統計量 タガー一括 Bin幅
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