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LNGS Scanning Station

LNGS Scanning Station. Nicola D’Ambrosio (LNGS group) Maiori, 4-6 June 2007. CS Scanning Station: presently activities. CSd measurement and analysis On-Line and off-line ESS improvements (New Filters, brick X-ray measurement, …) CS Scanning improvements (soft../Hard…)

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LNGS Scanning Station

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  1. LNGS Scanning Station Nicola D’Ambrosio (LNGS group) Maiori, 4-6 June 2007

  2. CS Scanning Station: presently activities • CSd measurement and analysis • On-Line and off-line ESS improvements • (New Filters, brick X-ray measurement, …) • CS Scanning improvements (soft../Hard…) • CS X-Ray system development and management • Automatic emulsion changer (oil option) development • Bricks / CS handling and shipment organization … • General maintenance (lab environment, network, processing PCs) • PENAUT analysis

  3. Scanning station: April 2007 run 2 shifts/day - 1 Physicist /shift (LNGS people available and on-call) 4 microscopes dedicated : used only 3 (1 microscope had a camera problem, now solved) - 1 microscope used for PENAUT analysis - - 1 microscope at TecnoCut for automatic changer tuning -

  4. Scanning station shifts List (April 2007 Run) CSd measurement started on 17/5 A new call is under way for 1÷2 weeks in June

  5. Scanning station CSd analysis (April 2007 Run) • 18 CSd measured from first extraction • 19 CSd measured from second extraction • 37 CSd in 11 Days • (36÷15 cm2 around prediction) • Detailed results of this analysis will be presented by Luillo

  6. Comments • On-Line scanning parameters tuning needed • on “real” CSd emulsion • No information on efficiencies for “large angle” • ( > 400 mrad) • We need a new set of emulsion for efficiencies check • using “presently” CSd-like emulsion + large angle set • New test beam ?

  7. Scanning station : 2007 September Run 24 hours/day 6 microscopes operative 3 shifts/day (8 hours) - 2 person/shift (1 Physicist from the collaboration, 1 ext. man power ) ~ 1 CSd / system / day (considering also NC) In total 6÷8 CSd/day can be analyzed at LNGS

  8. Scanning station : near future plan Setting Up of the CS Analysis parameters (On-Line and Off-Line) Re-Measurement of the CSd (April 2007 run) A soon as they are available -> tuning of the other 3 microscopes Tuning of the data flow into the computer infrastructure (Data access via Central DB !!!)

  9. CSD full surface analysis: Emulsion on scotch tape Vacuum channel Emulsion Scotch Tape

  10. CSD full surface analysis • Preliminary quality test DONE : • CSD prediction from August Run measured and confirmed • Event found 98 times on 100 measurements • Future tests: new scotch, un-gluing emulsion effects, precise • measurement near the border. • Presently we manually glue the emulsion on scotch • with a “simple tool”: not so easy to get good result • Professional gluing machine will be soon available (Bologna) • New prototype of glass with large perimeter channel • is under construction (Bologna)

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