{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T01:00:18Z","timestamp":1760058018196,"version":"build-2065373602"},"reference-count":17,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2025,3,7]],"date-time":"2025-03-07T00:00:00Z","timestamp":1741305600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Shota Rustaveli National Science Foundation of Georgia (SRNSFG)","award":["FR 23-1964"],"award-info":[{"award-number":["FR 23-1964"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>We compared two methods for determining the detector performance and the cosmic ray small-surface array aperture. The comparison was performed using the GELATICA network station at Telavi Iakob Gogebashvili State University (hereafter TEL) as an example. The first method is a standard analytical method. It is based on mean values of variables and averaged distributions. This analytical approach to data analysis was the focus of the research carried out within the GELATICA project. The project is a member of the international CREDO (Cosmic-Ray Extremely Distributed Observatory) Collaboration, whose main goal is the detection and global analysis of cosmic ray ensembles. In contrast to the traditional approach, which focuses on the detection of individual cosmic ray extensive air showers, CREDO aims to connect existing and yet-to-be built cosmic ray arrays into a worldwide network, thus creating a scientific tool for the global analysis of ultra-high energy cosmic rays. The present work was the first to compare the determination of the parameters of the extensive air showers recorded by the TEL array with simulation results using the CORSIKA code. The interpretation of the results of the analytical method for the evaluation of detector registration thresholds is generally found to be inconclusive. In order to obtain definitive results, we propose additional measurements and a new method of array detector performance. We show that the energy spectrum obtained analytically is nearly in agreement with that obtained from simulations. Differences are apparent for the primary particle energy threshold. The difference in the overall counting rate for the TEL array is of the order of 4%.<\/jats:p>","DOI":"10.3390\/sym17030403","type":"journal-article","created":{"date-parts":[[2025,3,7]],"date-time":"2025-03-07T09:38:46Z","timestamp":1741340326000},"page":"403","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Two Approaches to Determining the Shower Size Threshold of a Small EAS Array"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2078-0580","authenticated-orcid":false,"given":"Tadeusz","family":"Wibig","sequence":"first","affiliation":[{"name":"Faculty of Physics and Applied Informatics, University of Lodz, Pomorska 149\/153, 90-236 \u0141\u00f3d\u017a, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6103-4496","authenticated-orcid":false,"given":"Manana","family":"Svanidze","sequence":"additional","affiliation":[{"name":"E. Andronikashvili Institute of Physics, Tbilisi State University, 6 Tamarashvili St, Tbilisi 0177, Georgia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8265-1082","authenticated-orcid":false,"given":"Revaz","family":"Beradze","sequence":"additional","affiliation":[{"name":"E. Andronikashvili Institute of Physics, Tbilisi State University, 6 Tamarashvili St, Tbilisi 0177, Georgia"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-7526-6044","authenticated-orcid":false,"given":"Abesalom","family":"Iashvili","sequence":"additional","affiliation":[{"name":"E. Andronikashvili Institute of Physics, Tbilisi State University, 6 Tamarashvili St, Tbilisi 0177, Georgia"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-5707-020X","authenticated-orcid":false,"given":"Valeri","family":"Kikvadze","sequence":"additional","affiliation":[{"name":"E. Andronikashvili Institute of Physics, Tbilisi State University, 6 Tamarashvili St, Tbilisi 0177, Georgia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1948-5901","authenticated-orcid":false,"given":"Ia","family":"Iashvili","sequence":"additional","affiliation":[{"name":"Department of Physics, State University of New York at Buffalo, 239 Fronczak Hall, Buffalo, NY 14260, USA"}]}],"member":"1968","published-online":{"date-parts":[[2025,3,7]]},"reference":[{"key":"ref_1","unstructured":"(2025, January 30). GEorgian Large-Area Angle and TIme Coincidence Array. Available online: https:\/\/gelatica.tsu.ge\/."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Verbetsky, Y., Svanidze, M., Ruimi, O., Wibig, T., Kakabadze, L., Homola, P., Alvarez-Castillo, D.E., Beznosko, D., Sarkisyan-Grinbaum, E.K., and Bar, O. (2022). First Results on the Revealing of Cognate Ancestors among the Particles of the Primary Cosmic Rays That Gave Rise to Extensive Air Showers Observed by the GELATICA Network. Symmetry, 14.","DOI":"10.3390\/sym14081749"},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Homola, P., Beznosko, D., Bhatta, G., Bibrzycki, \u0141., Borczy\u0144ska, M., Bratek, \u0141., Budnev, N., Burakowski, D., Alvarez-Castillo, D.E., and Almeida Cheminant, K. (2020). Cosmic-Ray Extremely Distributed Observatory. Symmetry, 12.","DOI":"10.3390\/sym12111835"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"038","DOI":"10.1088\/1475-7516\/2022\/03\/038","article-title":"Cosmic ray ensembles as signatures of ultra-high energy photons interacting with the solar magnetic field","volume":"2022","author":"Dhital","year":"2022","journal-title":"J. Cosmol. Astropart. Phys."},{"key":"ref_5","unstructured":"Wilson, J.G., and Greisen, K. (1956). Progress in Cosmic Ray Physics, North-Holland."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1143\/PTPS.6.93","article-title":"The Lateral and the Angular Structure Functions of Electron Showers","volume":"6","author":"Kamata","year":"1958","journal-title":"Prog. Theor. Phys. Suppl."},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Rossi, B. (1966). Cosmic Rays, McGraw\u2013Hill, Inc.","DOI":"10.1119\/1.1972998"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"030001","DOI":"10.1103\/PhysRevD.110.030001","article-title":"Review of particle physics","volume":"110","author":"Navas","year":"2024","journal-title":"Phys. Rev. D"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1016\/j.jheap.2023.08.002","article-title":"Intermittent behaviour in small CORSIKA showers","volume":"40","author":"Wibig","year":"2023","journal-title":"J. High Energy Astrophys."},{"key":"ref_10","unstructured":"Heck, D., Knapp, J., Capdevielle, J.N., Schatz, G., and Thouw, T. (1998). CORSIKA: A Monte Carlo Code to Simulate Extensive Air Showers, Forschungszentrum Karlsruhe GmbH. KZKA-6019."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"490","DOI":"10.1016\/S0168-9002(03)02076-X","article-title":"The cosmic-ray experiment KASCADE","volume":"513","author":"Antoni","year":"2003","journal-title":"Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrometers Detect. Assoc. Equip."},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Klages, H.O., KASCADE Collaboration, Apel, W.D., Bekk, K., Bollmann, E., Bozdog, H., Br\u00e2ncu\u015f, I.M., Brendle, M., Chilingarian, A., and Daumiller, K. (August, January 28). The Extensive Air Shower Experiment Kascade\u2014First Results. Proceedings of the 25th International Cosmic Ray Conference (ICRC1997), Durban, South Africa.","DOI":"10.1142\/9789814529044_0017"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"034906","DOI":"10.1103\/PhysRevC.92.034906","article-title":"EPOS LHC: Test of collective hadronization with data measured at the CERN Large Hadron Collider","volume":"92","author":"Pierog","year":"2015","journal-title":"Phys. Rev. C"},{"key":"ref_14","unstructured":"Fesefeldt, H. (2025, January 30). The Simulation of Hadronic Showers -Physics and Applications-, Available online: http:\/\/cds.cern.ch\/record\/162911\/files\/CM-P00055931.pdf."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"21","DOI":"10.1016\/j.astropartphys.2016.04.005","article-title":"Production of secondary particles and nuclei in cosmic rays collisions with the interstellar gas using the FLUKA code","volume":"81","author":"Mazziotta","year":"2016","journal-title":"Astropart. Phys."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"1859","DOI":"10.1088\/0954-3899\/25\/9\/308","article-title":"Relativistic hadron-hadron collisions in the ultra-relativistic quantum molecular dynamics model","volume":"25","author":"Bleicher","year":"1999","journal-title":"J. Phys. G Nucl. Part. Phys."},{"key":"ref_17","unstructured":"Nelson, W.R., Hirayama, H., and Rogers, D.W. (1986, January 15\u201319). Electron-photon transport using the EGS4 (Electron Gamma Shower) Monte Carlo Code. Proceedings of the Transactions of the American Nuclear Society: 1986 Annual Meeting, Reno, NV, USA."}],"container-title":["Symmetry"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2073-8994\/17\/3\/403\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T16:49:06Z","timestamp":1760028546000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2073-8994\/17\/3\/403"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,3,7]]},"references-count":17,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2025,3]]}},"alternative-id":["sym17030403"],"URL":"https:\/\/doi.org\/10.3390\/sym17030403","relation":{},"ISSN":["2073-8994"],"issn-type":[{"type":"electronic","value":"2073-8994"}],"subject":[],"published":{"date-parts":[[2025,3,7]]}}}