European Scanning System R&D Bari, Bologna, Bern, Lyon, Napoli, Roma, Salerno Tuning of 10 cm 2 /hour on the OPERA emulsions But not refreshed and 32 micron thick Based on MatroxGenesis + multiprocessor and CCD 60 fps XYZ stage and Nikon optics almost frozen also for 20 cm 2 /hour Towards 20 cm 2 /hour Matrox Odyssey with back compatibilty and CMOS fps

Status of the Software for the European Scanning System Cristiano Bozza European Emulsion Group LNGS May 2003 Presentation Plan Last updates to SySal Quasi-on-line SW.NET migration Data handling Conclusions Next evolutions of SySal

Last updates to SySal The new tracking algorithm: SmartTracker A perfectly aligned sequence of real grains turns in a poorly aligned sequence of grain samples on discrete layers The error on Z turns into an alignment error along the slope direction, proportional to the track slope The transverse alignment stays good a a  s  z Alignment ellipse

Last updates to SySal The new tracking algorithm: SmartTracker Simplified track startup Once tracking starts, all layers are searched Law of the Jungle: If two sequences share even one grain, the less populated sequence is eliminated The user plans startup triggers ⇒ fewer trials ⇒ independent trials

Last updates to SySal The new tracking module: SmartTracker Tracking efficiency independent of track slope Reduced background of fake tracks Tighter alignment parameters possible Faster tracking (> 10 times faster than the previous one) Parameters are much less critical than with other algorithms Multiprocessor support: the tracking procedure can be splitted over all the processors available in the machine, proportionally reducing the tracking time

Last updates to SySal Miscellaneous improvements Automatic light control ensures homogeneous data quality Grain count for each layer of each view allows to assess focusing quality Area for each grain and area sum for tracks allows grain quality analysis Bug fixes in Genesis DLL and VertigoScan DLL ⇒ help exploit the full thickness of emulsion layers

Next evolutions of SySal Main goal: increase speed up to 20 cm 2 /h and more Recognize clusters and search for tracks while grabbing and moving Images and Z samples are time-stamped, so the correct Z is computed and attached to each image Matrox Odyssey support (6∻16 times faster than Genesis) Support for very fast commercial cameras (>100 Mpixel resolution)

Quasi-on-line SW New generation (.NET) New postprocessing and quasi-on-line programs are being developed in the.NET framework All programs read and write files in backward-compatible data formats

Quasi-on-line SW EasyCorrect.NET Recovers precise data subtracting systematic measurement errors

Quasi-on-line SW EasyLink.NET Improved microtrack linking: Residual angular errors along the slope direction are proportional to slope

Quasi-on-line SW QuickFileCheck / QuickDataCheck Utility programs for quick analysis of.rwd and.tlg files (DB data also)

Quasi-on-line SW GrainTrackViewer Interactive grain dump viewer and tracking module tuner tool

Quasi-on-line SW RWDCheck Helps checking focusing by reading.rwd files in the new format

Quasi-on-line SW QMapper Command-line tool for track pattern matching TLGSel Command-line tool for base track selection

Quasi-on-line SW All the tools listed up to now are interactive tools In the real life of OPERA, quasi-on-line tasks can be the bottleneck for fast microscopes, so they must be performed automatically All our computing libraries are decoupled from the interface, so they can be used in batch mode without any change Batch services run as OS background applications, even with no user logged on, and with specific permissions to ensure data safety

Quasi-on-line SW ScanningManager Web service interface to OperaBatchManager RemoteAnalysis Web service that allows to remotely analyse scanning data from files and / or from DB OperaBatchManager Drives several scanning PCs, performs microtrack linking, examines the scanning output, generates predictions for the next plate, and produces temporary event reconstructions

.NET migration Easy programming Fast code Every module developed under SySal.NET can be used in the forecoming European Emulsion Computing Infrastructure without any further adaptation SySal.NET: an evolving software library for nuclear emulsion scanning purposes XML (textual) representation of persistent objects SySal.NET (  2) The code is being maintained in Visual Source Safe format

.NET migration SySalCore: Core library with basic data types SySal.NET (  2) modules Imaging: Generic image handling library Tracking: Generic tracking / postprocessing library Scanning: I/O libraries for various formats and quasi-online tasks DAQSystem: Generic classes for distributed scanning tasks QuickMapper: Track pattern matching class SheetMap: Generic classes for stage-to-experiment frame transformations StageControl: Generic stage driving classes NumericalTools: Numerical computation libraries MathExpression: A mathematical parser / evaluator class SmartTracker: Online tracking module SimpleTrackPostProcessor: Online track postprocessing module StripesFragLink: Fragment linking module, presently used by EasyLink.NET FragShiftCorrection: Systematic error correction module GraphicalAnalysis: A library to produce useful plot StatisticalGraphics: Self-consistent control for statistical graphics StatisticalAnalysisManager: Self-consistent control for statistical analysis VolumeTracks: Generic classes defining ECC tracks AlphaOmegaReconstruction: TotalScan reconstruction module to form tracks and vertices OperaDb: DB interface classes

.NET migration Asynchronous DAQ is necessary to work under.NET Many DAQ modules are ready COM, C/C++ and VB offline code is already being phased out The DAQ program implementation has not started yet Analysis libraries under.NET are already now easier to use that traditional COM, C/C++ or VB libraries SySal.NET (  2)

Data handling This DB should be already used for test beam exposure scanning ORACLE 9iDS is the present DB server A relational DB has been designed and is being tuned ⇒ Can be accessed from Windows, Linux, UNIX, etc. An OPERA Internal Note has been published (Doc. # 38) “Database Architecture for the European Emulsion Scanning System” DB for data storage and for the administration and management of the European Emulsion Computing Infrastructure Data files will be progressively phased out in favour of DB storage ⇒ No need for I/O libraries that depend on the data content Increasing support for ROOT (.NET library & data converters)

Conclusions The scanning program has improved greatly in efficiency and speed Commercially available HW is evolving – more progress is expected The transition to.NET should be completed by the end of 2003 Our data handling policies allow everybody to analyse data in the preferred format, while ensuring data safety and security