Global S&T Development Trend Analysis Platform of Resources and Environment
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., I3; 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 | |
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. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论