Scientific Targets and Data Summary Tape

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Scientific Targets and Data Summary Tape for
School Extensive Air Shower Network.
Karol Jedrzejczak, Marcin Kasztelan, Barbara
Szabelska, Jacek Szabelski, Tadeusz Wibig
Institute for Nuclear Studies, Cosmic Ray
Laboratory, Lódz, Poland
The Roland Maze Project http//maze.u.lodz.pl
City of Lódz
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Existing High School Cosmic Ray experiments in
Europe
HiSparc the Netherlands, NIKHEF
SEASA Sweden, KTH Stokholm
Cosmic Ray Telescopes in Portuguese High Schools
Lisbon Beja, LIP
Cosmic Ray Experiment in UK, Preston College,
Liverpool
Cosmic Ray Experiment for Secondary Schools
Belgium
CZELTA Czech, Praque, Technical Univ.
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Planned High School experiments in Europe
ReLyC France, Paris-7, APC
EEE Extreme Energy Events - Italy
School Project in Finland Oulu
HELYCON - Greece, Patras
Cosmic Ray School Projects in Denmark
School EAS arrays in Moscow, MIFI
The Roland Maze Project Poland, Lódz, IPJ
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In Europe now in working stage 6 experiments
soon there would be 10 experiments.
In USA Canada there are 10-16 EAS experiments
(nets)
Most of these experiments are networks of school
based small EAS arrays synchronised (off line) on
the GPS based time registration systems.
Students and teachers are involved in
construction, control and data analysis this
is educational target
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Scientific topics for High School Cosmic Ray
Experiments
Search for correlated EAS events observed in
distant EAS arrays (including Gerasimova,
Zatsepin mechanism).
(J. Pinfold review in CERN Courier, May 2006, 46
4, pp. 19-22)
Studies of correlated EAS events require a
central DATA BASE of triggered EAS events
recorded in chronological order (GPS based
absolute time).

• Information needed
• identification of network and array,
• time of the triggered event
• elapsed time from start of the array

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High School based Cosmic Ray experiments in Europe
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Single muon counting rate variation
Single muon counting rates are sensitive to
Forbush Decrease events.
The rough muon rates shall be (anti)correlated
with the local atmospheric pressure.
Related parent Cosmic Ray proton energy range is
10 200 GeV (but variations are probably
related to lower energies from this range)
Zenith angle distribution of muons (and parent
particles) is cos2( ? ) dcos( ? ) ½
events with ? lt 40o , 1.4sr
Observed in muons sky areas vary with time and
depend on network localisation.
Large statistics allows for small integration
time - studies of turbulence spectra.
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For the Roland Maze Project area 40m2, muon
rate 6kHz, for 5 s integration statistical error
0.5
Similarly for HiSparc
We hope for collaboration with neutron monitor
network and space weather groups.
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• Information needed for muon flux variation
  studies
• identification of network,
• moun rate integrated in 5 seconds
• local atmospheric pressure

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Summary
School based EAS array networks in Europe need
closer collaboration.
Publicly available data base (DST) with
information easy to use and scientifically
promissing need to be created.

• EuroCosmics would welcome any suggestions, how to
  use
• data from High School experiments
• for scientific research,
• to include students in research
• to be used for simple educational tasks and for
  more advanced research.

Please send suggestions to js_at_zpk.u.lodz.pl
(Jacek Szabelski)