Message-Id: <200409300821.i8U8LZQX012700@neutrino.kek.jp> Subject: Minutes of K2K Steering Meeting (Sep.30) Date: Thu, 30 Sep 2004 17:21:35 +0900 From: Takanobu Ishii <ishii@neutrino.kek.jp> ========================================================================= *Schedule* ------------------------------------------------------------------------- ===Beam=== Sep.30(Thu) 9:00 Accelerator tuning starts Oct.01(Fri) 1:00-9:00 Machine study (stripping foil) 9:00 Linac, booster tuning starts 11:00 EP1 dump ON 13:00 MR tuning starts ~19:00 After beam channel tuning, neutrino beam starts Oct.02(Sat) 9:00-17:00 Booster RF tuning (neutrino beam can be used, but it may stop for a few hours) Oct.03(Sun) 1:00 Neutrino beam stops 1:00 ; Dump-mode-change by T.HASEGAWA 1:00-9:00 Machine study (JPARC BPM calibration) 9:00- Machine study (8GeV) Oct.04(Mon) 9:00- 12GeV MR tuning 17:00 After beam channel tuning, neutrino beam starts ===Detector=== Oct.04(Mon) 9:00-15:00 SCIFI cosmic-ray run ===Shift=== K2K shifts start from Oct.01-A. Shifttakers of Oct.01-A may come to the experimental hall after lunch, and they watch the TV monitor and prepare for the beam. Nu-H shifts of Oct.02-C to Oct.03-C should do a hardware check once and he is free. NH-CR shifts of Oct.02-C to Oct.03-C are canceled. Shifttakers of Oct.04-A may come to the experimental hall after lunch, and they watch the TV monitor and prepare for the beam. Shift time at KEK (SK shift is a little different) A-shift : 9:00-17:15 B-shift : 17:00-25:15 C-shift : 25:00-9:15(next day) ========================================================================= *Reports from each subcomponent* ------------------------------------------------------------------------- ===BEAM MONITOR=== (Hayato) The FastBus power supply of the beam monitor was broken. It will be replaced. ===MRD=== (Ishii) The gas, electronics and HV are OK. It was confirmed by analyzing the cosmic-ray data that the MRD is working well. ===1KT=== (Mine) DAQ is ready for data taking. (We successfully took both dummy spill and cosmic ray muon data this week.) Realtime offline data process is also ready. Usual maintainance of water system was done by technicians from US this week. ===SCIFI,VETO=== (Ishida) SciFi EL data were taken last weekend, and calibration table has become ready. Quick CR data analysis gives hit finding eff of >95% with satistfactory Npix distributions. SciFi is ready for data taking. Veto There are two channels of veto counters which gives low hit rates in comparison with previous histograms (ch15: Down8Left, ch113: Up17Left. HV values are both fine). We will check these PMTs. ===SCIBAR=== (M.Hasagawa) Yesterday , we turned on SciBar HV and electronics system and took calibration data. Data taking was successfully done. We are ready for Neutrino Run. ===SK=== (Obayashi) Though water pump of air-conditioner is broken and stop DAQ for while to avoid heat up yesterday, SK DAQ including GPS data is stable now. =========================================================================
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