Observation of a possible neutron burst associated with a lightning discharge?

Martin, I. M.; Alves, Mara Lisa

doi:10.1029/2009ja014498

Cited by 30 publications

(33 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Chilingarian et al (2010) report a neutron excess during a bright gamma-ray glow of 2009 September 19, with duration ∼10 minutes. While the neutron events seen by Kuzhevskii (2004) and Martin and Alves (2010) were more than an order of magnitude higher than the background levels in their instruments, the neutron event reported by Chilingarian et al (2010), shown in their Fig. 3, is only a 3 % excess over background.…”

Section: Observations Of Neutrons From Thunderstormsmentioning

confidence: 71%

“…More recent ground-based observations were made by Kuzhevskii (2004), Chilingarian et al (2010), and Martin and Alves (2010). Kuzhevskii (2004) observed several events from a station in Moscow.…”

Section: Observations Of Neutrons From Thunderstormsmentioning

confidence: 93%

“…3.2.1). Martin and Alves (2010) recorded a single event in Brazil in which a 3 He-filled, pressurized proportional counter serving as a neutron detector, integrating 1-minute samples, registered a single sample during a thunderstorm of 690 neutrons (in comparison to a background of less than 1 count per minute). A nearby lightning strike occurred during this minute.…”

Section: Observations Of Neutrons From Thunderstormsmentioning

confidence: 99%

See 2 more Smart Citations

High-Energy Atmospheric Physics: Terrestrial Gamma-Ray Flashes and Related Phenomena

2012

View full text Add to dashboard Cite

It is now well established that both thunderclouds and lightning routinely emit x-rays and gamma-rays. These emissions appear over wide timescales, ranging from submicrosecond bursts of x-rays associated with lightning leaders, to sub-millisecond bursts of gamma-rays seen in space called terrestrial gamma-ray flashes, to minute long glows from thunderclouds seen on the ground and in or near the cloud by aircraft and balloons. In particular, terrestrial gamma-ray flashes (TGFs), which are thought to be emitted by thunderclouds, are so bright that they sometimes saturate detectors on spacecraft hundreds of kilometers away. These TGFs also generate energetic secondary electrons and positrons that are detected by spacecraft in the inner magnetosphere. It is generally believed that these x-ray and gamma-ray emissions are generated, via bremsstrahlung, by energetic runaway electrons that are accelerated by electric fields in the atmosphere. In this paper, we review this newly emerging field of High-Energy Atmospheric Physics, including the production of runaway electrons, the production and propagation of energetic radiation, and the effects of both on atmospheric electrodynamics.

show abstract

Section: Observations Of Neutrons From Thunderstormsmentioning

confidence: 71%

Section: Observations Of Neutrons From Thunderstormsmentioning

confidence: 93%

Section: Observations Of Neutrons From Thunderstormsmentioning

confidence: 99%

See 1 more Smart Citation

High-Energy Atmospheric Physics: Terrestrial Gamma-Ray Flashes and Related Phenomena

2012

View full text Add to dashboard Cite

show abstract

“…[26] reports short and sharp increases in low energy n count rate simultaneous with a lightning discharge occurring in vicinity of the detector. Measurements with high time resolution at Tian Shan indicate highly correlated short n signals (bursts ≈ 200 − 400µs) observed by three types of detectors placed at different positions: He3 counters (with and without polyethylene moderator) and neutron monitor (NM) in time coincidence…”

Section: Ground Based Cr / Other Particle Observations Related To Atmmentioning

confidence: 99%

Possibilities for selected space weather and atmospheric studies in JEM-EUSO project?

Kudela¹

2016

Proceedings of the 34th International Cosmic Ray Conference — PoS(ICRC2015)

View full text Add to dashboard Cite

for the JEM-EUSO CollaborationThe main scientific task of JEM-EUSO is to observe the ultra high energy cosmic rays by looking the atmosphere from space [1,2,3,4]. The detailed description of various sources of the background is important. On the other hand, the study of selected magnetospheric, ionospheric and atmospheric processes related to temporal and spatial variability of UV (ultraviolet) on the orbit where JEM-EUSO is supposed to be situated, could be a useful by-product of the main task of the project (e.g. review [5]). We attempt to summarize selected processes connected with atmospheric electricity and with energetic particles having links to the events as TLE (transient luminous event), TGF (terrestrial gamma-ray flash) and TGE (thunderstorm ground enhancement), recently observed on mountains too. Our groups (in CBK Warsaw, in IEP Košice) have a long track of experience with measurements of waves and particles for magnetospheric/ionospheric research as well as with physical analysis/interpretation of the data obtained. The JEM-EUSO, if the experiment is augmented by a very simple device that monitors energetic particles, and coordinated with other satellite measurements and with ground based observations, may be of relevance for some space weather studies related to the effects in the chain magnetosphere/ionosphere/atmosphere. This can contribute to better understanding of electromagnetic responses of lightning on the Earth and of selected processes at high altitudes in the atmosphere.

show abstract

“…So with this chart, normal background noise radiation could be verified or if there had been in this time a different variation indicating presence of another generating source as lightning, rain and thick clouds crossing the region. To determine periodicities in long series of intensity measurements, Fast Fourier Transform (FFT) analysis was made (power spectra) thus observing periods related to various environmental phenomena in the region [7][8][9][10].…”

mentioning

confidence: 99%

Changes in Low Energy Neutron Counts Rate near Ground Level Associated to Steady Rain

Martin¹,

Gomes²,

Silva³

et al. 2016

JESE-A

View full text Add to dashboard Cite

Measurements of neutron count rate (0.025 to 10 ) at ground level were performed with a single free (He-3) tube detectorthat is located near ground level in Aeronautical Institute of Technology (ITA) São José dos Campos, SP, Brazil. The data were collected uninterruptedly since February 28, 2016 to March 11, 2016. Based on the analysis of data obtained in this period, was possible to observe the occurrence of events, backscattering for example,with significant increases in the neutron count rate during about 3 days of steady rain for all nearby regions. These events seem to be correlated with changes in local weather conditions such as cloud coverage or rain-precipitation of weak intensity. It was reported that the non-observation of a single event seems to be an indicative of the production of a burst of neutrons by a lightning discharge near the detector. Some explanations about the increasing of low energy neutrons are suggested in this article.

show abstract

Observation of a possible neutron burst associated with a lightning discharge?

Cited by 30 publications

References 15 publications

High-Energy Atmospheric Physics: Terrestrial Gamma-Ray Flashes and Related Phenomena

High-Energy Atmospheric Physics: Terrestrial Gamma-Ray Flashes and Related Phenomena

Possibilities for selected space weather and atmospheric studies in JEM-EUSO project?

Changes in Low Energy Neutron Counts Rate near Ground Level Associated to Steady Rain

Contact Info

Product

Resources

About