人工引发雷电X射线爆发观测系统设计
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摘要
为开展闪电高能辐射观测研究,本文设计了人工引雷X射线爆发事件的观测系统,并完成电磁屏蔽性能测试以及能量刻度实验。基于放射性测量的统计学原理导出人工引雷X射线爆发信号的实时甄别算法。在国内首次观测到人工引雷产生的X射线爆发现象,四次成功的人工引雷实验中观测到三次X射线爆发信号。
For the study of lightning energetic radiation observations,an observation system for the rocket-triggered lightning X-ray burst events was designed, and the electromagnetic shielding performance tests and energy calibration were completed. Based on the statistical principle of radiation measurement,a recognition algorithm for rocket-triggered lightning X-ray burst was derived. For the first time in China,three energetic radiation signals have been successfully observed during four rocket-triggered lightning tests.
For the study of lightning energetic radiation observations,an observation system for the rocket-triggered lightning X-ray burst events was designed, and the electromagnetic shielding performance tests and energy calibration were completed. Based on the statistical principle of radiation measurement,a recognition algorithm for rocket-triggered lightning X-ray burst was derived. For the first time in China,three energetic radiation signals have been successfully observed during four rocket-triggered lightning tests.
引文
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[14]蒋如斌,郄秀书,王彩霞,等.峰值电流达几千安量级的闪电M分量放电特征及机理探讨[J].物理学报,2011,60(7):867-874.
[15]王彩霞,郄秀书,蒋如斌,等.一次人工触发闪电上行正先导的传输特征[J].物理学报,2012,61(3):553-560.
[2]Smith D M, Barrington-Leigh C P. Terrestrial gamma-ray flashes observed up to 20 MeV[J].Science,2005,307(5712):1085-1088.
[3] Briggs M S,Fishman G J,Connaughton V,et al.First results on terrestrial gamma ray flashes from the Fermi Gamma-ray Burst Monitor[J]. Journal of Geophysical Research Space Physics, 2010, 115(A7):387-410.
[4]Marisaldi M,Fuschino F,Labanti C,et al. Detection of terrestrial gamma ray flashes up to 40 MeV by the AGILE satellite[J]. Journal of Geophysical Research Atmospheres,2010,115(A00E13):1-12.
[5]Marisaldi M,Argan A,Trois A,et al. Gamma-ray localization of terrestrial gamma-ray flashes[J].Physical Review Letters,2010,105(12):1-12.
[6]Moore C B,Eack K B,Aulich G D,et al. Energetic radiation associated with lightning stepped-leaders[J]. Geophysical Research Letters,2001,28(11):2141-2144.
[7]Dwyer J R,Wright B,Dwyer J R,et al. Energetic radiation produced during rocket-triggered lightning.Science 299,694-697[J]. Science,2003,299(5607):694-697.
[8]Dwyer J R,Rassoul H K,Al-Dayeh M,et al.Measurements of X-ray emission from rocket-triggered lightning[J]. Geophysical Research Letters,2004,31(L05118):1-4.
[9]Dwyer J R,Rassoul H K,Al-Dayeh M,et al. A ground level gamma-ray burst observed in association with rocket-triggered lightning[J]. Geophysical Research Letters,2004,31(L05119):1-4.
[10]Dwyer J R,Rassoul H K,Al-Dayeh M,et al. Xray bursts associated with leader steps in cloud-toground lightning[J]. Geophysical Research Letters,2005,320(1):357-357.
[11]Saleh Z,Dwyer J,Howard J,et al. Properties of the X-ray emission from rocket-triggered lightning as measured by the Thunderstorm Energetic Radiation Array[J]. Journal of Geophysical Research Atmospheres,2009,114(17):767-773.
[12]Howard J,Uman M A,Dwyer J R,et al. Colocation of lightning leader X-ray and electric field change sources[J]. Geophysical Research Letters,2008,35(13):344-349.
[13]Hill J D,Uman M A,Jordan D M,et al.“Chaotic”dart leaders in triggered lightning:Electric fields,Xrays,and source locations[J]. Journal of Geophysical Research Atmospheres, 2012, 117(D3):1-20.
[14]蒋如斌,郄秀书,王彩霞,等.峰值电流达几千安量级的闪电M分量放电特征及机理探讨[J].物理学报,2011,60(7):867-874.
[15]王彩霞,郄秀书,蒋如斌,等.一次人工触发闪电上行正先导的传输特征[J].物理学报,2012,61(3):553-560.