Human Resources-PNIII/Research projects for stimulating young independent teams/PN-III-P1-1_1-TE-2021-0924, „Large-scale DEtector response to radio signals from ultra-high energy COsmic Rays induced air Showers – DECORS”, 2022-2024

Project Organization

Coordinator (CO): Institute of Space Science – Subsidiary of INFLPR

Project Manager (CO): Dr. Paula Gina Isar


Ultra High Energy Cosmic Rays are the most rare and energetic particles in the Universe, of which source origin, production mechanisms and type of primary particle we still don’t know yet. Because of this, the Pierre Auger Observatory became the world’s largest cosmic rays experiment on ground, where hundreds of researchers contribute worldwide to the physics studies of the most mysterious particles in the Universe, employing thus complementary innovative detectors on a large-scale in Argentina. Romania became full Auger member in 2014, being represented by 3 institutes presently, among which the host Institute of Space Science is represented by the project leader. The project comes in support of the local Auger group in order to contribute to the current upgrade of Auger detectors, where some are improved and some are extended, as the radio detector will cover the entire array of 3000 km2. The outcome of the project will be towards understanding of the radio detector response at large scale, for inclined events at very high energies, contribution to official simulation production in Auger GRID VO, and optimized simulations with a reduced list of candidate observers in order to accelerate time computing. The project will employ students from a complementary field, and will disseminate results accordingly, to increase the group visibility and science awareness, and support the continuity of research activity of the local group in Auger.

Project goal

The project aims to study the evolution of air showers, with closer look on the electrons and muons ratio, and the radio emission mechanisms of the registered radio signals, as well as the detector response at large-scale, i.e. AugerPrime RD, using HPC, distributed computing and intelligent algorithms to optimize the workflow of data analysis.

Research results

library of simulated and reconstructed events; software for data processing and analysis; server of storage for upgrading the ISS computational resources in Auger grid VO, talk/poster contribution in conferences/workshops; article/proceeding; education and outreach activities; internal note submitted to Auger; project’s web site; intermediate and final project reports.


Phase I (done, end of 2022)

Phase II (work in progress until end of 2023)

Phase III (planned by mid of May 2024)


  1. Annual Scientific Session of Faculty of  Physics, University of Bucharest, June 24, 2022 (talk, article)
  2. Auger Analysis meeting, Wuppertal, Germany, July 18-22, 2022
  3. XI International Conference on New Frontiers in Physics (online), August 30 – September 11, 2022, Crete, Greece (invited talk on AugerPrime, proceedings in 2023)
  4. Auger Radio workshop (online), October 21-25, 2022
  5. Auger Collaboration meeting (online), November 13-18, 2022, Malargue, Argentina
  6. First edition of the ATCx event in Romania (Altair Technology Conference) organized by SiMART 3D company, 22 November 2022, Bucharest.


  1. Seminar on Physics studied at the Pierre Auger Observatory at Polytechnic University of Bucharest, October 18, 2022
  2. Astronomy School – ASTRO ALL STARS by Expertise Factory (online), November 24, 2022 (invited talk on Cosmic Rays)
  3. International MasterClass 2023 – with the Pierre Auger Observatory, March 18, 2023, ISS-Bucharest, in frame of IPPOG – International Particle Physics Outreach Group (organizer)


Curs de Astronomie ASTRO ALL STARS

Photo Gallery


  1. Remote operation and monitoring of the Fluorescence and Lidar detectors at the Pierre Auger Observatory, September 15 – October 2, 2022 (team from Romania-ISS, France-IN2P3, Australia-U.Adelaide and Argentina-PAO)
  2. Remote operation and monitoring of the Radio detectors at the Pierre Auger Observatory, October 10-17, 2022 (team from Romania – ISS, IFIN-HH)
  3. Remote operation and monitoring of the Radio detectors at the Pierre Auger Observatory, January 16-23, 2023 (team from Romania – ISS, IFIN-HH)
  4. Remote operation and monitoring of the Surface Water-Cherenkov Particle Detectors at the Pierre Auger Observatory, May 1-15, 2023 (team from Romania – ISS)