The variation of potential gradient with altitude above ground of high radioactivity

Pierce, E. T.; Whitson, A. L.

doi:10.1029/jz069i014p02895

Cited by 11 publications

(2 citation statements)

References 2 publications

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“…There has been only one study at a highly radioactive site. Pierce & Whitson (1964) measured the vertical electric field in an area adjacenet to the nuclear test site in Nevada, USA. The measurement was carried out at the surface, and up to 2 km using a balloon.…”

Section: Introductionmentioning

confidence: 99%

Atmospheric electrical conductivity variations over different environments

Kumar¹,

Sampath²,

Das³

et al. 1995

Geophysical Journal International

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S U M M A R YAtmospheric electrical conductivities have been monitored at a coastal site having a large deposit of radioactive minerals. Conductivities were also monitored at two other sites, o n e coastal and the other inland, both non-radioactive. T h e ratio of conductivity a t the radioactive site t o that a t the others is about 6, in agreement with the ratio of radioactivity. T h e diurnal variation pattern at this site in May, a pre-monsoon month, agrees with the known variation of radon concentration in air. However, in June, a monsoon month, it is different, a double oscillation similar t o that at the other sites. With t h e onset of the monsoon, conductivity at the radioactive site shows a large decrease, which is not seen a t the other sites. T h e ratio of positive polar conductivity t o negative polar conductivity shows a reduction after the onset of the monsoon rainfall. T h e diurnal variation pattern shows differences between pre-monsoon and monsoon periods at the radioactive site, while there is no change at the non-radioactive sites. The diurnal variation a t all these sites in all seasons shows a sharp decrease starting at about 0400 hrs local time and reaching a minimum at about 0800 hrs. Such a decrease has been attributed t o human activity associated with sunrise. T h e present results, however, suggest that this may be incorrect. Fourier analysis of the data shows that there exists a strong semi-diurnal component that is inversely correlated with the clearly seen semi-diurnal variation in pressure in the tropics.

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Section: Introductionmentioning

confidence: 99%

Atmospheric electrical conductivity variations over different environments

Kumar¹,

Sampath²,

Das³

et al. 1995

Geophysical Journal International

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“…High-energy electrons susceptible to relativistic runaway are continuously supplied to the atmosphere by cosmic-ray interactions [24,25] and by radioactive isotopes, primarily radon and its daughters; however, the radioactive source is only significant below ^ 1 km [26].…”

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confidence: 99%

Terrestrial Gamma-Ray Flashes, Relativistic Runaway, and High-Energy Radiation in the Atmosphere

Smith¹,

Crosby²,

Huang³

et al. 2009

AIP Conference Proceedings

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High energy radiation from tens of keV to tens of MeV in energy, the transition region from x-rays to gamma rays, has been observed in association with high electric fields in air in many contexts: from the ground, associated with thunderstorms and with individual flashes of natural and rocket-triggered lightning [1, 2, 3, 4, 5, 6, 7, 8] from sparks in the laboratory [9, 10, 11, 12], from Earth orbit in the form of millisecond Terrestrial Gamma-ray Flashes (TGFs) [13,14], and at intermediate altitudes from aircraft and balloons [15,16,17,18,19]. The gamma radiation in all cases is almost certainly bremssfrahlung generated by the collision of accelerated elecfrons with nuclei in the atmosphere. The penefrating gamma-rays can provide a mechanism for coupling between the froposphere, mesosphere, ionosphere and magnetosphere in the form of energetic particles and ionization.

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The First Antenna and Wireless Telegraph, Personal Communications System (PCS), and PCS Symposium in Virginia

Hagn¹,

Lyon²

1994

Wireless Personal Communications

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The variation of potential gradient with altitude above ground of high radioactivity

Cited by 11 publications

References 2 publications

Atmospheric electrical conductivity variations over different environments

Atmospheric electrical conductivity variations over different environments

Terrestrial Gamma-Ray Flashes, Relativistic Runaway, and High-Energy Radiation in the Atmosphere

The First Antenna and Wireless Telegraph, Personal Communications System (PCS), and PCS Symposium in Virginia

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