Yuuki Wada
Observational Studies of Photonuclear Reactions Triggered by Lightning Discharges
Observational Studies of Photonuclear Reactions Triggered by Lightning Discharges
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Excellent- More about Observational Studies of Photonuclear Reactions Triggered by Lightning Discharges
This book presents the first simultaneous detection of neutrons and positrons after a terrestrial gamma-ray flash (TGF), triggered by a lightning discharge, based on innovative ground-based observations in Japan. The reactions and propagations of their products in the atmosphere are modeled with Monte Carlo simulations to demonstrate that lightning discharges can trigger photonuclear reactions and produce isotopes.
Format: Paperback / softback
Length: 176 pages
Publication date: 10 March 2022
Publisher: Springer Verlag, Singapore
This captivating book delves into the groundbreaking discovery of neutrons and positrons simultaneously following a terrestrial gamma-ray flash (TGF), a remarkable high-energy transient phenomenon originating from lightning discharges on Earth. TGFs, recognized since the 1990s as the product of lightning discharges, have long been predicted to engage in photonuclear reactions with atmospheric nuclei due to their high-energy photons exceeding 10 MeV. However, the direct observation of such photonuclear reactions by lightning discharges, resulting in the production of neutrons and unstable isotopes emitting positrons, had remained elusive until now. To unravel the mysteries of TGFs, neutrons, and positrons, the authors employ innovative ground-based observations conducted in the Hokuriku area of Japan. Through meticulous analysis, they model the reactions and propagations of their products in the atmosphere using Monte Carlo simulations, providing a quantitative evaluation of the observed TGFs, neutrons, and positrons at ground level. The remarkable success of this comparison demonstrates that lightning discharges not only initiate photonuclear reactions but also have the potential to introduce isotopes into the Earth's atmosphere. This groundbreaking work sheds light on the intricate interplay between lightning, atmospheric nuclei, and the resulting radiation, advancing our understanding of the dynamic processes shaping our planet.
Weight: 314g
Dimension: 235 x 155 (mm)
ISBN-13: 9789811604614
Edition number: 1st ed. 2021
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