scholarly journals Low Frequency Radio Signals from Extensive Air Showers

Nature ◽  
1972 ◽  
Vol 237 (5355) ◽  
pp. 367-367
Author(s):  
2006 ◽  
Vol 21 (supp01) ◽  
pp. 242-246 ◽  
Author(s):  
H. GEMMEKE ◽  
W. D. APEL ◽  
F. A. BADEA ◽  
L. BÄHREN ◽  
K. BEKK ◽  
...  

The LOPES experiment (LOfar Prototype Station) has been built at the KASCADE-Grande experiment in order to test the LOFAR (LOw Frequency ARray) technology and demonstrate its capability for radio measurements in Extensive Air Showers (EAS). After the first positive results in the framework of the KASCADE-Grande experiment we developed the next generation of antennas, electronics, and trigger. The main new features are easy calibration of antennas with precise detection of polarization, and good capability of self-triggering. The results from this new design are under test in Karlsruhe. Furthermore the background situation was measured and analyzed.


2019 ◽  
Vol 216 ◽  
pp. 04005 ◽  
Author(s):  
Antonio Bonardi ◽  
Stijn Buitink ◽  
Arthur Corstanje ◽  
Heino Falcke ◽  
Brian M. Hare ◽  
...  

The radio signals emitted by Extensive Air Showers have been successfully used for the last decade by LOFAR to reconstruct the properties of the primary cosmic rays. Since an effective real-time recognition system for the very short radio pulses is lacking, cosmic-ray acquisition is currently triggered by an external array of particle detector, called LORA, limiting the LOFAR collecting area to the area covered by LORA. A new algorithm for the real-time cosmic-ray detection has been developed for the LOFAR Low Band Antenna, which are sensitive between 10 and 90 MHz, and is here presented together with the latest results.


Nature ◽  
1972 ◽  
Vol 237 (5355) ◽  
pp. 384-385 ◽  
Author(s):  
H. R. ALLAN

2021 ◽  
Author(s):  
Valentin Decoene ◽  
Olivier Martineau-Huynh ◽  
Matias Tueros ◽  
Simon Chiche

Nature ◽  
1973 ◽  
Vol 245 (5420) ◽  
pp. 86-87 ◽  
Author(s):  
A. G. GREGORY ◽  
R. W. CLAY ◽  
J. R. PRESCOTT

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