Artificial Emission of Ionized Regions

Gurevich, A.V.; Borisov, N. D.; Milikh, G. M.

doi:10.1201/9780203743287-6

Cited by 2 publications

(4 citation statements)

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“…The measured threshold electric fields without radioactive material are generally in good agreement with the theoretical Paschen curve in the Ar case at pressures between 4 Torr and 100 Torr, the range in which the maximum EM power was above the theoretical threshold breakdown power. In this pressure range, the experimentally measured threshold field in the case in which the 60 Co source was present is ∼1.7 times lower than that without the source11. This difference resulted from the generation of a large number of secondary electrons because of the interaction between the gamma rays and the neutral Ar gas molecules, which had low energies (<1 MeV) due to Compton scattering.…”

Section: Resultsmentioning

confidence: 89%

“…The initial high-energy electrons with a density of n 0e produce secondary knock-on electrons via collisions with the molecules present in the breakdown-prone volume. To produce one secondary electron–ion pair, an average energy of ∼34 eV is needed 11 . The energy distribution of the gamma photons and high-energy electrons of 0.64 mCi 60 Co at 20 cm from the source can be determined using Monte Carlo N-Particle eXtended (MCNPX ver.…”

Section: Resultsmentioning

confidence: 99%

“…On the basis of this analysis, the reduction in the electric field required for breakdown (experimentally determined reduction factor of 4 versus theoretical reduction factor of 2.5) can be understood to a certain extent, although a slight discrepancy still exists between the experimental and theoretical observations. The additional reduction observed experimentally may be due to uncontrollable experimental conditions, including the fact that the exact molecular contents are unknown and an aerosol may be present 11 12 .…”

Section: Resultsmentioning

confidence: 99%

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Remote detection of radioactive material using high-power pulsed electromagnetic radiation

Kim

Sawant

et al. 2017

Nat Commun

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Remote detection of radioactive materials is impossible when the measurement location is far from the radioactive source such that the leakage of high-energy photons or electrons from the source cannot be measured. Current technologies are less effective in this respect because they only allow the detection at distances to which the high-energy photons or electrons can reach the detector. Here we demonstrate an experimental method for remote detection of radioactive materials by inducing plasma breakdown with the high-power pulsed electromagnetic waves. Measurements of the plasma formation time and its dispersion lead to enhanced detection sensitivity compared to the theoretically predicted one based only on the plasma on and off phenomena. We show that lower power of the incident electromagnetic wave is sufficient for plasma breakdown in atmospheric-pressure air and the elimination of the statistical distribution is possible in the presence of radioactive material.

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Section: Resultsmentioning

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Remote detection of radioactive material using high-power pulsed electromagnetic radiation

Kim

Sawant

et al. 2017

Nat Commun

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“…Causing effect on an intense electromagnetic irradiation local volume is a prospective method of the artificial ionization of air [25]. The essence of this method is that the air ionization occurs due to electromagnetic irradiation energy transfer from land-based sources to free molecules and electrons in the zone of influence.…”

Section: Physical Impact On the Precipitation Formation Processmentioning

confidence: 99%

Recovery Method for Emergency Situations with Hazardous Substances Emission into the Atmosphere

Kustov¹,

Kalugin²,

Hristich³

et al. 2021

IJSSE

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The objective of this Article is development of a hazardous area extent reducing method in the atmosphere upon emergency situation occurrence with hazardous chemical and radioactive substances emission. To achieve the specified objective it is recommended to use deposition of gaseous, liquid and solid disperse hazardous particles from the atmosphere using artificial precipitation over a zone of emergency. For artificial intensification of precipitation, use of chemical and physical principles of impact on droplets formation processes in the area of clouds is proposed. A pyrotechnic composition was developed for chemical impact, which when combustion generates finely dispersed chemical centers of condensation and modifying components for hazardous chemical substances neutralization. Conducting the ionization of precipitation formation area by a strong impulse electromagnetic irradiation was proposed as a physical impact on the artificial precipitation formation processes. The laboratory study results confirmed the technical feasibility of this method implementation. To reduce the necessary radiator power, application of a multi-position radiators system with radiation focusing to one irradiation zone was proposed. The theoretical and experimental results obtained in the article are the base for development of emergency situation negative consequences reduction practical procedures through artificial precipitation initiation.

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Artificial Emission of Ionized Regions

Cited by 2 publications

References 0 publications

Remote detection of radioactive material using high-power pulsed electromagnetic radiation

Remote detection of radioactive material using high-power pulsed electromagnetic radiation

Recovery Method for Emergency Situations with Hazardous Substances Emission into the Atmosphere

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