Message-ID: <3ECCB9D8.2050501@neutrino.kek.jp> Date: Thu, 22 May 2003 20:51:52 +0900 From: Koichiro Nishikawa <nishikaw@neutrino.kek.jp> Subject: Re: Mintues of 1kt meeting (May 21, 2003) Itow-san and others, I have not seem any pi0 related subject. Could you tell me what is happening? Regards, K.Nishikawa Yoshitaka Itow wrote: >Minuets of local 1kt meeting (May 21, 2003) >Kamioka;Miura >KEK;Asia,Antonty >Kashiwa;Itow > > >1) Hardware status (Asia) > >* WEB TMC ch8 monitor has stopped for a while due to nurock replacements. >* FTP problem of water system was fix, while water system is ofcource OK. >* UV lamp of water system will be replaced by Roy at Jun 6 ~ 7. >* After Asia will stat at Kamioka from May 27, Kameda will take over > water system until Mine comes in Jun. > >2) Offline/reduction shift (Antony) > >Report from reduction shift (Antony). >Timing problem of ch8 in web in Run4411 only in short subrun 3. >Other are fine. >We should use "Short run" instead of "Junk Run" for reduction shift. >"Junk run" should be used for real garbage run. > >3) PID study (Antony) > >He studied PID with and without Cherenkov angle information for >-100cm,0cm, +100cm vertex shift. The results are > > -100cm 0cm +100cm > w/ w/o w/ w/o w/ w/o >mu 0.4% 0% 0% 0% 7% 12% >e 12 % 9.1% 2.1% 1.6% 1.2% 1.1% > > >4) Ni/Laser data for QE calibration (Antony) > >Now old Ni data files were found. Antony will check it. >He will check also low-intensity TQmap laser data. >He will obtain 1pe distribution for each PMT with low intesity laser >and QE table for each PMT from Ni data. >If he needs, he will take new Ni and low intensity data >( with lower ATM threshold if needed ) after Jun shutdown. > > >5) Laser injection (Asia) > >She replaced measured laser wave length by 415.5nm with gaussian >from monocromatic 410nm for 410nm run set. >It increase reflection light in MC. > >6) Asia will stay at Kamioka durin June to finalize water parameter > and tune 1kt PID pattern template. > >7) NSK (Miura) > > Nnu/N1peak vs period seems stable. But in Ntotpeak/CT vs period, > 2003 run shows increasing. > Also they scattered by 1% which is much bigger than statistical fluctiation. > He will check time dependent systematic error of Ntotpeak due to 3% > of stability of FADC constant given by Hayashi. > >Next meeting with video to US, May 30th (Fri) 9:00 am (JST) > > >Regards, > >Y.Itow > >
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