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

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

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

MIC 2 Final Hardware configuration: Camera MC1310 SNr: X-Y MS-8, Id.No.: ; S/N: Z MT-85, Id.No.: ; S/N: Hardware setup completed: Z-Slant T Xoffset = 0.8 mrad, T Yoffset = 2 mrad Pixel/micron ratio R x = 0.302, R y = 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

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± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ±0.9 Average:86.2± ± ± ±2.5 Efficiency test:  = 4 found out of 5 8 plates were scanned (from to 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

MIC 2 Microtrack angular resolution T x  (T x ) (mrad)

MIC 2 Basetrack angular resolution T x  (T x ) (mrad)

MIC 3 Final Hardware configuration: Camera MC1310 SNr: X-Y MS-8, Id.No.: ; S/N: Z LS-110, Id.No.: ; S/N: Hardware setup completed: Z-Slant T Xoffset = 0.6 mrad, T Yoffset = 1.2 mrad Pixel/micron ratio R x = 0.302, R y = 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

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± ± ± ±2.6 Background with new filter: 4.7 (2.6) tracks/mm 2 inside Tx = 450 mrad, Ty = 100 mrad

MIC 3 Microtrack angular resolution T x  (T x ) (mrad)

MIC 3 Basetrack angular resolution T x  (T x ) (mrad)

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)

MIC 5 Final Hardware configuration: Camera MC1310 SNr: X-Y MS-8, Id.No.: ; S/N: Z LS-110, Id.No.: ; S/N: 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

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± ±1.8

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

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

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