RT Journal Article
T1 Atmospheric temperature effect in secondary cosmic rays observed with a 2m2 ground‐based tRPC Detector
A1 Riádigos Sánchez, Irma
A1 García-Castro, Damián
A1 González Díaz, Diego
A1 Pérez Muñuzuri, Vicente
K1 Atmospheric temperature effect
K1 Extraction of temperature
K1 Cosmic ray
AB A high time resolution 2 m2 tracking detector, based on timing Resistive Plate Chamber (tRPC) cells, has been installed at the Faculty of Physics of the University of Santiago de Compostela (Spain) in order to improve our understanding of the cosmic rays arriving at the Earth's surface. Following a short commissioning of the detector, a study of the atmospheric temperature effect of the secondary cosmic ray component was carried out. To take into account this effect, temperature coefficients, WT(h), were obtained from cosmic ray data using a method based on Principal Component Analysis (PCA). The results obtained show good agreement with the theoretical expectation. The method successfully removes the correlation present between the different atmospheric layers, which would be dominant otherwise. We briefly describe the initial calibration and pressure correction procedures, essential to isolate the temperature effect. Overall, the measured cosmic ray rate displays the expected anticorrelation with the effective atmospheric temperature, through the coefficient αT=−0.279±0.051%/K. Rates follow the seasonal variations, and unusual short-term events are clearly identified too.
PB Willey
YR 2020
FD 2020-06-11
LK https://hdl.handle.net/10347/37580
UL https://hdl.handle.net/10347/37580
LA eng
NO Riádigos, I., García‐Castro, D., González‐Díaz, D., & Pérez‐Muñuzuri, V. (2020). Atmospheric temperature effect in secondary cosmic rays observed with a 2m2 ground‐based tRPC detector. Earth and Space Science, 7, e2020EA001131. https://doi.org/ 10.1029/2020EA001131
NO We thank financial support by the Spanish Ministerio de Economía y Competitividad and European Regional Development Fund under Contract RTI2018-097063-B100 AEI/FEDER, UE, and by Xunta de Galicia under Research Grant 2018-PG082. I. R. and V. P. M. are part of the CRETUS Strategic Partnership (AGRUP2015/02). All these programs are co-funded by FEDER (UE). We also thank DIGAFER SA, included in the framework of the Conecta-PEME program, 2018-CE161. D. G. C. thanks to the Ministerio de Ciencia, Investigación y Universidades, and the European Social Fund (FSE) for a predoctoral grant (FPI 2017). D. G. D. acknowledges the Ramon y Cajal program, Contract RYC-2015-18820.
DS Minerva
RD 24 abr 2026