Wilga, /32 MazePi - Extended Air Shower and GRB coincidence check via SOA Marcin Molak Warsaw University of Technology, Faculty of Physics

Wilga, /32 Plan of presentation: Origin of UHE Cosmic Rays: –Astrophysical Sources (bottom-up mechanisms) –Top-down scenarios Methods of CR Detection MazePi system –Maze and pre-Maze comparison –Why SOA and WebServices? –On-line analysis (Php + Ajax)

Wilga, /32 Cosmic Rays High energy, extraterrestric particles –Primary cosmic rays 98% fully ionized atoms (mainly hydrogen & helium) <1% electrons <1% photons –Secondary cosmic rays Particles generated in the atmosphere by primary CR WARNING: About cosmic rays will hit you until next hour

Wilga, /32 Origin of Cosmic Rays „Bottom-up” models – acceleration mechanism, connected with astrophysical sources „Top-down” models – origin of cosmic rays through decay of sufficiently massive particles X originating from processes in the early Universe. Hybrid models

Wilga, /32 Source: Neutron Stars Pulsars and magnetars – neutron stars with surface magnetic field up to Gauss (acceleration of charged nuclei up to eV)

Wilga, /32 Source: Active Galactic Nuclei Acceleration, during photo-pion production, up to eV (adiabatic deceleration problem)

Wilga, /32 Source: Fanaroff-Riley type II radio-galaxies Acceleration in hot-spots of Fanarotf-Riley II galaxies (up to eV, no adiabatic deceleration problem)

Wilga, /32 Other Candidate Sources Super massive Black Holes (~ 10 9 M Θ ) Clusters of Galaxies Colliding Galaxies Gamma Ray Bursts

Wilga, /32  - Lorentz factor Z – charge of the nucleus B – magnetic field value R – linear dimension of the object Sources - summary

Wilga, /32 GZK Cut-off (Greisen-Zatsepin-Kuzmin) e    cm ) p GZK-Cutoff p+  CMB p+  0 (>50EeV) -3

Wilga, /32 Direct measurements Ballons Satellites

Wilga, /32 If a charged particle in a specific medium (e.g. water) moves faster than the light in this medium a wave-front of light is emitted. Water-Cherenkov detector

Wilga, /32 Scintillation detectors in ground arrays for Extensive Ray Showers

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Wilga, /32 Roland Mazé project Detection points would being placed on the roofs of Lódź schools. Each of station will be equipped with: –4 scintillation counters (1m2 area, 10m distance separation) with ADC –GPS Motorola M12+ Timing with antenna –PC-class computer

Wilga, /32 Maze and preMaze comparison On top: preMaze apparatus map On left: Map of secondary schools in Łódź

Wilga, /32 CR and GRB coincidence check Few reports for correlation of cosmic rays and GRB: –Milagrito – 18 events were observed during 18 s of GRB970417a (expected background: 3.46 ± 0.11) –HEGRA – AIROBICC – 11 events were registered during 4 min after GRB020925c (estimated background 0.93) We proposed MazePi system, which consists of Pi of the Sky and Roland Mazé projects

Wilga, /32 MazePi system MazePi DB Station 1 Station i Maze IPJ Łódź Main Server SOAP Clients MazePi Server SOAP Web Services DB Trigger Trigger Broadcast System Pi Server Pi DB PiMan SOAP Clients … On-line analysis

Wilga, /32 Service Oriented Architecture

Wilga, /32 Service Oriented Architecture Why SOA? Wikipedia answer: The main drivers for SOA adoption are that it links computational resources and promotes their reuse. Enterprise architects believe that SOA can help businesses respond more quickly and cost-effectively to changing market conditions. This style of architecture promotes reuse at the macro (service) level rather than micro level (objects). It can also simplify interconnection to - and usage of - existing IT (legacy) assets.

Wilga, /32 Web Services Works on heterogeneous systems (almost all machine and software platforms) Uses XML-based protocols: –SOAP - extensible message envelope format for data transfer –WSDL - allows service interfaces to be described –UDDI - for publishing and discovering metadata about Web services

Wilga, /32 eXtensible Markup Language John Doe Peter Pan Database systems 29 SQL relational XPath /book /book/authors /book/authors/author (...) book title price author authors author keywords keyword id=47 id=58 SQLrelational Database Systems 29 John DoePeter Pan

Wilga, /32 MazePi AddToDatabase Service (1)

Wilga, /32 MazePi AddToDatabase Service (2)

Wilga, /32 MazePi AddToDatabase Service (3)

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Wilga, /32 Bibliography Bhattacharjee, Sigl „Origin and Propagation of Extremely High Energy Cosmic Rays”, astro-ph/ Stanev „Ultra high energy cosmic rays”, astro-ph/ Wikipedia (english version)

Wilga, /32 Links „Pi of the Sky”homepage ( Roland Mazé project homepage ( MazePi homepage ( Marcin Molak – Notatnik Programisty (

Wilga, /32 Thank you for your attention