TY - GEN
T1 - X-ray emissions produced by stepping lightning leaders
AU - Xu, Wei
AU - Celestin, Sebastien
AU - Pasko, Victor P.
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/10/16
Y1 - 2014/10/16
N2 - X-ray bursts have been observed in association with rocket-triggered lightning and natural cloud-to-ground lightning [e.g., Dwyer et al., Science, 299, 694-697, 2003; Saleh et al., JGR, 114, D17210, 2009; Schaal et al., JGR, 117, D15201, 2012]. Moreover, recent measurements at the International Center for Lightning Research and Testing (ICLRT) [e.g., Dwyer et al., GRL, 32, L01803, 2005; Howard et al., GRL, 35, L13817, 2008] have established a correlation between these X-ray measurements and the stepping process of lightning leaders. Additionally, it has been suggested that the Relativistic Runaway Electron Avalanche (RREA) mechanism is not likely to be responsible for this phenomenon [Dwyer et al., GRL, 31, L12102, 2004]. These X-rays may instead originate from the acceleration of runaway electrons in the lightning leader field during negative corona flash processes [Celestin and Pasko, JGR, 116, A03315, 2011]. However, the properties of X-ray bursts from lightning are poorly known, mainly due to the low fluence of photons detected from the ground.
AB - X-ray bursts have been observed in association with rocket-triggered lightning and natural cloud-to-ground lightning [e.g., Dwyer et al., Science, 299, 694-697, 2003; Saleh et al., JGR, 114, D17210, 2009; Schaal et al., JGR, 117, D15201, 2012]. Moreover, recent measurements at the International Center for Lightning Research and Testing (ICLRT) [e.g., Dwyer et al., GRL, 32, L01803, 2005; Howard et al., GRL, 35, L13817, 2008] have established a correlation between these X-ray measurements and the stepping process of lightning leaders. Additionally, it has been suggested that the Relativistic Runaway Electron Avalanche (RREA) mechanism is not likely to be responsible for this phenomenon [Dwyer et al., GRL, 31, L12102, 2004]. These X-rays may instead originate from the acceleration of runaway electrons in the lightning leader field during negative corona flash processes [Celestin and Pasko, JGR, 116, A03315, 2011]. However, the properties of X-ray bursts from lightning are poorly known, mainly due to the low fluence of photons detected from the ground.
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U2 - 10.1109/USNC-URSI-NRSM.2014.6928016
DO - 10.1109/USNC-URSI-NRSM.2014.6928016
M3 - Conference contribution
AN - SCOPUS:84911480264
T3 - 2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014
BT - 2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014
Y2 - 8 January 2014 through 11 January 2014
ER -