1. Status of Napoli scanning laboratory OPERA Emulsion Workshop, Nagoya, 7/12/2006 F. Di Capua on behalf of Napoli group

2. Microscopes IDNameHW ConfigurationSW ConfigurationStatus 1NAP_MIC1 StandardStandard Hardware setup completed and sofware settings in progress 2 NAP_MIC2 Almost Standard StandardSoftware settings available 3 NAP_MIC3 StandardStandardSoftware settings available 5NAP_MIC5 Standard+z readingStandardSoftware settings available 1 1 2 2 3 3 5 5

3. MIC 1 Final Hardware configuration: Camera MC1310 SNr: 30013 X-Y MS-8, Id.No.: 6316-5-006; S/N: 03050063 Z LS-110, Id.No.:6236-5-109; S/N: 05040096 Microscope assembled HW SW Last Sysal release is present Software check ongoing: Tracking efficiency measurement with reference emulsions are in progress Software installed

4. MIC 2 Final Hardware configuration: Camera MC1310 SNr: 30110 X-Y MS-8, Id.No.: 6316-5-012; S/N: 05040069 Z MT-85, Id.No.:6242-5-102; S/N: 03060022 Hardware setup completed: Z-Slant T Xoffset = 0.8 mrad, T Yoffset = 2 mrad Pixel/micron ratio R x = 0.302, R y = - 0.304 Microscope assembled Last Sysal release is present Software setup completed: By using reference films (CERN July 2006) test beam emulsions the tracking efficiency was measured Software installed HW SW

5. MIC 2 Activities: PEANUT Brick BL033: General scanning, SFT-Brick alignment, vertex analysis DB-driven scan-back not yet started Efficiencies: Plate0 mrad100 mrad200 mrad300 mrad 176.3±1.975.3±1.974.9±2.072.4±2.5 283.0±1.483.6±1.279.1±1.877.4±2.1 383.4±1.485.1±1.277.3±2.171.7±2.9 484.1±1.489.1±0.885.0±1.384.5±1.5 590.6±0.786.6±1.089.4±0.882.7±0.8 690.3±0.895.2±0.387.3±1.082.3±1.0 790.0±0.888.2±0.985.3±1.382.5±1.3 891.9±0.791.6±0.689.3±0.981.9±0.9 Average:86.2±1.786.8±1.583.4±2.179.4±2.5 Efficiency test:  = 4 found out of 5 8 plates were scanned (from 50-51 to 50-58 of CERN July 2006 test beam) Done with standard filter. Good results, but large plate by plate fluctuations Physical Background: 23 tr/mm 2 inside Tx,Ty = 450 mrad

6. MIC 2 Microtrack angular resolution T x  (T x ) (mrad) 16 7.6 120 8.6 190 13.7 340 22.0

7. MIC 2 Basetrack angular resolution T x  (T x ) (mrad) 16 2.1 120 2.9 190 3.9 340 5.8

8. MIC 3 Final Hardware configuration: Camera MC1310 SNr: 30108 X-Y MS-8, Id.No.: 6316-5-006; S/N: 04020075 Z LS-110, Id.No.:6236-5-109; S/N: 04020080 Hardware setup completed: Z-Slant T Xoffset = 0.6 mrad, T Yoffset = 1.2 mrad Pixel/micron ratio R x = 0.302, R y = - 0.303 Microscope assembled HW SW Last Sysal release is present Software setup completed: By using reference films (CERN July 2006) test beam emulsions the tracking efficiency was measured Software installed

9. MIC 3 Activities: Hadronic interaction studies Large area scan: multiple scattering and vertexing study at several energies DB-driven scan-back Nov 2004 plates: low density pion scan-back, vertex analysis Dry objective test CS doublets CS pilot scanning Efficiency test: Several tests were performed with different bricks (CERN Jul2006 and Nov2004 test beam) and different filters CERN refreshed emulsions: Pions (Nov2004) scanned with new filter -150 mrad 150 mrad (3 GeV) (2 GeV) 90.9±0.6 % 92.5±0.2 % OPERA-like emulsions: 7 GeV pions (Jul2006) With standard filter With new filter 16 mrad 340 mrad 16 mrad 120mrad 190mrad 340mrad 81% 75% 92.7±0.8 84.5±1.6 87.2±1.3 81.0±2.6 Background with new filter: 4.7 (2.6) tracks/mm 2 inside Tx = 450 mrad, Ty = 100 mrad

10. MIC 3 Microtrack angular resolution T x  (T x ) (mrad) 16 5.7 120 8.2 190 9.7 340 21.0

11. MIC 3 Basetrack angular resolution T x  (T x ) (mrad) 16 2.0 120 3.0 190 3.9 340 6.6

12. Hadronic interactions studies (MIC3) Multiprong TridentKink 4 bricks with high density pions of several energies (2÷5 GeV) For each brick 36 cm 2 /plate scanning area (scanning almost completed) Expected more than 3000 pion interactions (the analysis is in progress)

13. MIC 5 Final Hardware configuration: Camera MC1310 SNr: 30103 X-Y MS-8, Id.No.: 6316-5-012; S/N: 05040064 Z LS-110, Id.No.:6236-5-109; S/N: 05040031 Microscope assembled HW SW Last Sysal release is present Software installed Software setup completed: By using reference films (CERN July 2006) test beam emulsions the tracking efficiency was measured

14. This microscope will be used as pilot stage for hardware and software tests: - New Sysal software - New tracking program - Camera adaptor to increase the pixel/micron ratio MIC 5 OPERA-like emulsions: 7 GeV pions (Jul2006) Single refreshed Double refreshed 16 mrad 340 mrad 100 mrad 400mrad 90.4±1.0% 86.5 ± 2.1% 92.1±0.9 86.4±1.8

15. Microscopes laboratory Mic2 and Mic3 in acquisition Humidifiers systems Temperature and humidity sensors

16. Temperature and humidity control Average temperature = 21.9±0.1(max) ºC Average humidity = 67±1(max) %  T/time = (0.03 ºC)/min  H/time = (0.4 %)/min Period = 6 min

17. Summary of scanning activities Mic2: Peanut scan-back and vertex analysis Mic3: Hadronic interactions studies and Scan back procedure optimization Mic5: Test for tracking efficiency improvements and background reduction Mic1: Scanning of the bricks from pilot extractions 4 microscopes fully operative at nominal speed