National Centre for Nuclear Research
Astrophysics Division
Cosmic Ray Laboratory

90-558 Łódź
ul. 28 Pułku Strzelców Kaniowskich 69
tel./fax (+48 +42) 6786431
tel./fax (+48 +42) 6783223


Research activity of the Cosmic Ray Laboratory in Lodz relates to physics and astrophysics of cosmic rays, and to high energy physics. Our studies are focused on:

  • origin of cosmic rays (CR) - astrophysical sources, mechanisms of acceleration
  • CR mass composition and energy spectrum
  • elementary particle interaction properties from Extensive Air Showers (EAS) analysis
Our Laboratory participates in some international projects:
  • JEM-EUSO - a new type space-borne observatory designed to clarify the origin of the highest energy cosmic rays (above 1019 eV). The JEM-EUSO telescope will observe Extensive Air Showers produced by CR particles in the Earth atmosphere for the first time from the altitude of the International Space Station. Our group is responsible for design and construction of the high voltage power supplies and fast switches for photomultipliers placed in the focal plane of the telescope. We also take part in performing Monte Carlo simulations of the observed phenomena.
  • KASCADE-Grande - a large ground-based extensive air shower array for the studies of mass composition and the hadronic interactions in the energy range E0= 1016- 1018 eV. KASCADE-Grande has been officially shut down in 2009, but some of its components are still running serving as a test facility for the Radio Antenna Array LOPES measuring radio emission generated by air showers.
  • POLAR - a small satellite experiment which will measure polarization of photons from Gamma Ray Bursts. The high voltage power supply (HVPS) for this experiment has been designed in our Lodz laboratory. We have also built the prototype and engineering model of HVPS. Experiment POLAR is planned to be launched on board of a Chinese satellite in 2014.
In our Laboratory we also carry out the studies of neutrons originating from EAS particles interactions. We are working on the interpretation of the phenomenon of multiple neutrons (so called "neutron bursts") registered in our underground laboratory.
We have measured the thermal and non-thermal neutron background in the deep underground Gran Sasso National Laboratory and in the salt mine Unirea in Slanic (Romania).

We are studying processes of neutron transport and interactions comparing results of simulation with GEANT4 package to the measurements with the use of the weak neutron source and the germanium counter. These works are carried out in the framework of the ISOTTA project. The main aim of this project is to create the conditions for production of radiopure isotopically enriched material for future experiments searching for neutrinoless double beta decay.

Each year since the World Year of Physics 2005 we organize in Lodz (and recently also in Poznan) the European Masterclasses workshops for high school students with video-conferences from CERN.

In July 2009 Lodz was hosting the 31st International Cosmic Ray Conference, organized jointly by the University of Lodz and IPJ.

We collaborate with Polish and foreign Cosmic Ray and High Energy Physics Laboratories.