Observational Studies of Photonuclear Reactions Triggered by Lightning Discharges

Yuuki Wada (Autor)

Buch | Hardcover

176 Seiten

2021 | 1st ed. 2021
Springer Verlag, Singapore
978-981-16-0458-4 (ISBN)

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This book presents the first simultaneous detection of neutrons and positrons after a terrestrial gamma-ray flash (TGF), a highest-energy transient phenomenon on the earth, triggered by a lightning discharge, based on innovative ground-based observations made in the Hokuriku area of Japan. TGFs, known to be produced by lightning discharges since the 1990s, has been theoretically predicted to react with atmospheric nuclei via photonuclear reactions because they comprise high-energy photons of more than 10 MeV, but such photonuclear reactions by lightning discharges, which produce neutrons and unstable isotopes emitting positrons, were not observationally confirmed. The reactions and propagations of their products in the atmosphere are modeled with Monte Carlo simulations to quantitatively evaluate observations of TGFs, neutrons, and positrons at ground level. The successful comparison between observation and simulation is presented, and demonstrates that lightning discharges to trigger photonuclear reactions and to even produce isotopes in the atmosphere.

Yuuki Wada is a Special Postdoctoral Researcher at RIKEN, in the field of high-energy atmospheric physics. In March 2020, he received his Ph.D. in Physics from the University of Tokyo, regarding ground-based observations of high-energy particles from winter thunderstorms in Japan. He was also a Visiting Scientist at Laboratoire Astroparticule et Cosmologie, Université Paris-Diderot in 2018. He is interested in high-energy phenomena in the atmosphere, high-energy astrophysics, and detection techniques of high-energy particles.

Introduction.- Review.- Instrumentation and Observation.- Instrumentation and Observation.- Positrons from Proton-rich Radionuclides.- Positrons from Proton-rich Radionuclides.- Positrons from Proton-rich Radionuclides.- Discussions.- Conclusion.

Erscheinungsdatum	16.03.2021
Reihe/Serie	Springer Theses
Zusatzinfo	90 Illustrations, color; 25 Illustrations, black and white; XXI, 176 p. 115 illus., 90 illus. in color.
Verlagsort	Singapore
Sprache	englisch
Maße	155 x 235 mm
Themenwelt	Naturwissenschaften ► Geowissenschaften ► Geologie
	Naturwissenschaften ► Geowissenschaften ► Meteorologie / Klimatologie
	Naturwissenschaften ► Physik / Astronomie ► Atom- / Kern- / Molekularphysik
	Technik
ISBN-10	981-16-0458-4 / 9811604584
ISBN-13	978-981-16-0458-4 / 9789811604584
Zustand	Neuware