Message-Id: <200008281317.WAA30675@neutrino.kek.jp> Subject: Minutes of SciFi weekly meeting (00/Aug/28) Date: Mon, 28 Aug 2000 22:17:54 +0900 From: Makoto Sakuda <sakuda@neutrino.kek.jp> Subject: Minutes of SciFi weekly meeting (00/Aug/28) 1. Tracking Park studied the effect of satellites tracks and noise on the efficiency estimation for QE events, when he use ISEC=0 (no extra secondary tracks) requirement. From this study, the effect of satellites and noise on the systematic error of efficiency is estimated to be 7% x (difference between data and MC). He will start the QE event reconstruction without ISEC=0 cut. SNU group is scanning MC events and will check the performance. 2. Software and MC Ishida wants to clean up the scifi tracking bank and event DISPLAY. He will start with Park's veto-matched track commons. He will generate sets of MC with more noise and more satellites than the default version this week to estimate the systematic error. 3. Gain stability Jeon studied the gain stability of each IIT (Npix) every week from June 99 to June00, using scifi*Veto events. This seems to be the best gain monitor. In overall, the gain is stable. She will summarize the numbers after checking the fit. Yokoyama also studied the gain stability using EL calibration data. She checked the gain table. Some gain values need to be checked again. Ishida will check the table with cosmic-ray data. 4. Satellites Iwashita is studying satellite hit distribution and satellite tracks. 5. Leak sensor shows water leak. We will check the tubes. //
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