Effects of Thunderstorms Electric Field on Intensity of Cosmic Ray Electronsormalsize

Xun-Xiu, Zhou; WANG, Xinjian; Huang, D.; Jia, H. Y.

doi:10.11728/cjss2016.01.049

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…With the help of the time rate of change of the step electric field change, the lightning distance is estimated. The EFM-100 can record lightning out to approximately 48 km, and the location accuracy is ~1.6 km [48]. To prevent the rotor from being damaged, the mill was located on the roof of the WCDA-2 building.…”

Section: The Lhaaso-km2a Detectormentioning

confidence: 99%

Flux variations of cosmic ray air showers detected by LHAASO-KM2A during a thunderstorm on June 10, 2021*

Xun-Xiu¹

2023

Chinese Phys. C

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The Large High Altitude Air Shower Observatory (LHAASO) has three sub-arrays, KM2A, WCDA and WFCTA. The flux variations of cosmic ray air showers were studied by analyzing the KM2A data during the thunderstorm on 10 June 2021. The number of shower events that meet the trigger conditions increases significantly in atmospheric electric fields, with maximum fractional increase of 20%. The variations of trigger rates (increases or decreases) are found to be strongly dependent on the primary zenith angle. The flux of secondary particles increases significantly, following a similar trend with that of the shower events. To better understand the observed behavior, Monte Carlo simulations are performed with CORSIKA and G4KM2A (a code based on GEANT4). We find that the experimental data (in saturated negative fields) are in good agreement with simulations, assuming the presence of a uniform electric field of -700 V/cm with a thickness of 1500 m in the atmosphere above the observation level. Due to the acceleration/deceleration by the atmospheric electric field, the number of secondary particles with energy above the detector threshold is modified, resulting in the changes in shower detection rate.

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Section: The Lhaaso-km2a Detectormentioning

confidence: 99%

Flux variations of cosmic ray air showers detected by LHAASO-KM2A during a thunderstorm on June 10, 2021*

Xun-Xiu¹

2023

Chinese Phys. C

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Intensity variations of showers with different zenith angle ranges during thunderstorms

Axi

Zhou

Huang

et al. 2022

Astrophys Space Sci

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Effect of near-earth thunderstorms electric field on the intensity of ground cosmic ray positrons/electrons in Tibet

Zhou

Wang

Huang

et al. 2016

Astroparticle Physics

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Monte Carlo simulations are performed to study the correlation between the ground cosmic ray intensity and near-earth thunderstorms electric field at YBJ (4300 m a.s.l., Tibet, China).The variations of the secondary cosmic ray intensity are found to be highly dependent on the strength and polarity of the electric field. In negative fields and in positive fields greater than 600 V/cm, the total number of ground comic ray positrons and electrons increases with increasing electric field strength. And these values increase more obviously when involving a shower with lower primary energy or a higher zenith angle. While in positive fields ranging from 0 to 600 V/cm, the total number of ground comic ray positrons and electrons declines and the amplitude is up to 3.1% for vertical showers. A decrease of intensity occurs in inclined showers within the range of 0−500 V/cm, which is accompanied by smaller amplitudes. In this paper, the intensity changes are discussed, especially concerning the decreases in positive electric fields. Our simulation results are in good agreement with ground-based experimental results obtained from ARGO-YBJ and the Carpet air shower array. These results could be helpful in understanding the acceleration mechanisms of secondary charged particles caused by an atmospheric electric field.

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Effects of Thunderstorms Electric Field on Intensity of Cosmic Ray Electronsormalsize

Cited by 3 publications

References 19 publications

Flux variations of cosmic ray air showers detected by LHAASO-KM2A during a thunderstorm on June 10, 2021*

Flux variations of cosmic ray air showers detected by LHAASO-KM2A during a thunderstorm on June 10, 2021*

Intensity variations of showers with different zenith angle ranges during thunderstorms

Effect of near-earth thunderstorms electric field on the intensity of ground cosmic ray positrons/electrons in Tibet

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