In-Flight Observation of Positron Annihilation by ILDAS

doi:10.1029/2018JD028337

GSTDTAP > 气候变化

DOI	10.1029/2018JD028337
	In-Flight Observation of Positron Annihilation by ILDAS
	Kochkin, P.1; Sarria, D.1; Skeie, C.1; van Deursen, A. P. J.2; de Boer, A., I 3; Bardet, M.3; Allasia, C.4; Flourens, F.4; Ostgaard, N.4
	2018-08-16
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN	2169-897X
EISSN	2169-8996
出版年	2018
卷号	123 期号:15 页码:8074-8090
文章类型	Article
语种	英语
国家	Norway; Netherlands; France
英文摘要	We report a 511-keV photon flux enhancement that was observed inside a thundercloud and is a result of positron annihilation. The observation was made with the In-flight Lightning Damage Assessment System (ILDAS) on board of an A340 test aircraft. The aircraft was intentionally flying through a thunderstorm at 12-km altitude over Northern Australia in January2016. Two gamma ray detectors showed a significant count rate increase synchronously with fast electromagnetic field variations registered by an on-board antenna. A sequence of 10 gamma ray enhancements was detected, each lasted for about 1s. Their spectrum mainly consists of 511-keV photons and their Compton component. The local electric activity during the emission was identified as a series of static discharges of the aircraft. A full-scale Geant4 model of the aircraft was created to estimate the emission area. Monte Carlo simulation indicated that the positrons annihilated in direct vicinity or in the aircraft body. Key Points
英文关键词	positron lightning X-rays gamma ray glow annihilation
领域	气候变化
收录类别	SCI-E
WOS记录号	WOS:000443566900017
WOS关键词	GAMMA-RAY FLASHES ; THUNDERSTORM GROUND ENHANCEMENTS ; LIGHTNING CURRENT MEASUREMENT ; INDUCTIVE SENSOR ; ELECTRIC-FIELD ; BURSTS ; COLLISIONS ; EMISSIONS ; AIRCRAFT ; PULSES
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/33820
专题	气候变化
作者单位	1.Univ Bergen, BCSS, Bergen, Norway; 2.Eindhoven Univ Technol, Elect Engn Dept, Eindhoven, Netherlands; 3.Netherlands Aerosp Ctr, Amsterdam, Netherlands; 4.Airbus, Toulouse, France
推荐引用方式 GB/T 7714	Kochkin, P.,Sarria, D.,Skeie, C.,et al. In-Flight Observation of Positron Annihilation by ILDAS[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(15):8074-8090.
APA	Kochkin, P..,Sarria, D..,Skeie, C..,van Deursen, A. P. J..,de Boer, A., I.,...&Ostgaard, N..(2018).In-Flight Observation of Positron Annihilation by ILDAS.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(15),8074-8090.
MLA	Kochkin, P.,et al."In-Flight Observation of Positron Annihilation by ILDAS".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.15(2018):8074-8090.