1. Research History of Tsutomu FUKUDA 04 05 06 07 08 2003 Tono-Refresh facility Facility construction Mass production shift leader Refreshing control Sensitivity check fog density check GS-CS Refresh facility Mass production shift leader Refreshing control Pouring Nuclear- Emulsion for heavy ion exposure exp. Analysis of DONUT experiment Location of unlocated event dE/dX measurement in OPERA-film Test experiment at KEK Grain Density - dE/dX - beta Sensitivity check by Temperature on Developing and Fading effect OPERA ECC: VTX confirmation rehearsal by using PEANUT Brick OPERA CS: Compton alignment test exp. by radioactive ray from KCl PEANUT ECC: Systematic and Non bias ECC Analysis by SUTS data OPERA ECC: VTX confirm in PLCh and Volume SCAN data Quality chk Emulsion hardware Emulsion software and analysis OPERA CS: Direct VTX hunting and Organizer of CS Analysis at Nagoya 09 Doctor course Master course

2. CS status T. Fukuda on behalf of Nagoya CS Analysis task force team 20/Jan ‘09 OPERA–JAPAN (Mizunami) meeting

3. No Standard analysis stream of CS analysis 1 st CS analysis 2 nd CS analysis Re- SCAN Found Not found Found Not found not yet TT check Brick o.k? Waiting / Not yet Brick request Re- SCAN Brick request Yes ?? TT check Brick o.k? Another analysis Yes Arrived & Sheeting Not yet 1 st CS analysis Found Not found Black CS? Yes/?? No(clearly) Brick request not yet

4. TT check. Brick o.k ?  No clearly Waiting for 2 nd CS(26 -1 22 30)

5. No 1 st CS analysis 2 nd CS analysis 6 Found Not found Found Not found not yet TT check Brick o.k? 109 6 290+8 Yes ?? 45 80 not yet 1 st CS analysis Found Not found Status of CS analysis (up to 22/Dec arrived) 580ev TT check Brick o.k? Yes Black CS? Yes/?? No(clearly) 36

6. CS status (CC/NC) CCNCTOTAL CS arrived444 CS / 416 ev175 CS / 164 ev619 CS / 580 ev Clearly another Brick 19 ev6 ev25 ev Heavy Black CS 29 ev10 ev39 ev CS scanned & quality checked 332 CS / 319 ev152 CS / 149 ev484 CS / 468 ev manual checked321 CS / 310 ev130 CS / 126 ev451 CS / 436 ev Brick finding & Good Trk for location is found 234 ev (75%)70 ev (56%)304 ev (70%) Not found ( Brick o.k ) 20 ev (6%)16 ev (13%)36 ev (8%) Not found ( -> Next CS ) 55 ev (18%)35 ev (28%) 90 ev (21%) Not found ( Black CS ) 1 ev (0%)5 ev (4%)6 ev (1%)

7. Recent CS status (19/Dec-10/Jan) Plate set at Scan and Scanning parameter tuning is improved (12/12 ’08). (Morishima-san’s talk) Tracking efficiency is better than before state. (BaseTrk eff: 82%  91% ) About tracking efficiency 33 CC event Try 24 9 center of Brick ? Muon found? 222 yes edge yesno 4/4 :20 3/4 : 2 Muon found : 4 Muon not found : 5 4/4 efficiency = 83%  BaseTrk efficiency = 91%

8. 1.Scanning and Online data handling - Preparing 4/4 and ¾ track data set. K.Morishima 2.Track Selection for manual check - Compton Alignment S. Miyamoto - Muon hunting Y. Sakatani - Track ranking T. Fukuda 3.Manual check J. Yoshida - Navigation T. Yoshioka 4.Event validation  Decision of location method (SBL/DVh) CS analysis procedure