Estimates of the Electromagnetic Radiation From Detonation of Conventional Explosives

Fine, Jonathan E.

doi:10.21236/ada397161

Cited by 14 publications

(12 citation statements)

References 13 publications

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“…Due to the shock front, the frequency content of the incident wave is extremely high; indeed, the rate of the stress rise imparted to tissue followed by rapid relaxation may be of as much concern with regard to cellular damage as stress amplitude (White et al, 1965;Vawter et al, 1978;Viano and Lau, 1988;Doukas et al, 1995;Morrison et al, 2000;Garner et al, 2000). Blast also can propagate energy in the electromagnetic domain, although the power spectrum is highly dependent on the device size and configuration (Fine and Vinci, 1998;Kelly, 1993). Ongoing research is required to understand how these various energy modes interact with biological systems from the global to cellular-level scales, and particularly what respective power spectra may be relevant to tissue damage (Ritzel workshop lecture, 2008;Leung et al, 2008).…”

Section: State Of the Artmentioning

confidence: 99%

Blast-Related Brain Injury: Imaging for Clinical and Research Applications: Report of the 2008 St. Louis Workshop

Benzinger

Brody

Cardin

et al. 2009

Journal of Neurotrauma

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Blast-related traumatic brain injury (bTBI) and post-traumatic stress disorder (PTSD) have been of particular relevance to the military and civilian health care sectors since the onset of the Global War on Terror, and TBI has been called the ''signature injury'' of this war. Currently there are many questions about the fundamental nature, diagnosis, and long-term consequences of bTBI and its relationship to PTSD. This workshop was organized to consider these questions and focus on how brain imaging techniques may be used to enhance current diagnosis, research, and treatment of bTBI. The general conclusion was that although the study of blast physics in nonbiological systems is mature, few data are presently available on key topics such as blast exposure in combat scenarios, the pathological characteristics of human bTBI, and imaging signatures of bTBI. Addressing these gaps is critical to the success of bTBI research. Foremost among our recommendations is that human autopsy and pathoanatomical data from bTBI patients need to be obtained and disseminated to the military and civilian research communities, and advanced neuroimaging used in studies of acute, subacute, and chronic cases, to determine whether there is a distinct pathoanatomical signature that correlates with long-term functional impairment, including PTSD. These data are also critical for the development of animal models to illuminate fundamental mechanisms of bTBI and provide leads for new treatment approaches. Brain imaging will need to play an increasingly important role as gaps in the scientific knowledge of bTBI and PTSD are addressed through increased coordination, cooperation, and data sharing among the academic and military biomedical research communities.

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Section: State Of the Artmentioning

confidence: 99%

Blast-Related Brain Injury: Imaging for Clinical and Research Applications: Report of the 2008 St. Louis Workshop

Benzinger

Brody

Cardin

et al. 2009

Journal of Neurotrauma

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Section: State Of the Artmentioning

confidence: 99%

Blast-related Brain Injury: Imaging for Clinical and Research Applications Report of the 2008 St. Louis Workshop

Wrathall¹,

Benzinger²,

Brody³

et al. 2009

Journal of Neurotrauma

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Blast-related traumatic brain injury (bTBI) and post-traumatic stress disorder (PTSD) have been of particular relevance to the military and civilian health care sectors since the onset of the Global War on Terror, and TBI has been called the "signature injury" of this war. Currently there are many questions about the fundamental nature, diagnosis, and long-term consequences of bTBI and its relationship to PTSD. This workshop was organized to consider these questions and focus on how brain imaging techniques may be used to enhance current diagnosis, research, and treatment of bTBI. The general conclusion was that although the study of blast physics in non-biological systems is mature, few data are presently available on key topics such as blast exposure in combat scenarios, the pathological characteristics of human bTBI, and imaging signatures of bTBI. Addressing these gaps is critical to the success of bTBI research. Foremost among our recommendations is that human autopsy and pathoanatomical data from bTBI patients need to be obtained and disseminated to the military and civilian research communities, and advanced neuroimaging used in studies of acute, subacute, and chronic cases, to determine whether there is a distinct pathoanatomical signature that correlates with long-term functional impairment, including PTSD. These data are also critical for the development of animal models to illuminate fundamental mechanisms of bTBI and provide leads for new treatment approaches. Brain imaging will need to play an increasingly important role as gaps in the scientific knowledge of bTBI and PTSD are addressed through increased coordination, cooperation, and data sharing among the academic and military biomedical research communities.

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“…The detonation physics regarding the thermodynamic effects of explosive detonation has been extensively researched. However, the mechanism of electromagnetic radiation generated by the detonation is still not well understood and a universally applicable mathematical model has not yet been developed [1,2]. The electromagnetic radiation generated by the explosion of explosives has attracted attention in many fields.…”

Section: Introductionmentioning

confidence: 99%

“…They obtained a general relationship describing the electric field generated by the explosion of solid explosives and described the mechanism of electromagnetic radiation generated by the movement of explosive products. Fine and Vinci [8] proposed that electromagnetic radiation is a thermal effect of the explosion and established a corresponding model. Qing Dai [9] et al discussed the mechanism of electromagnetic radiation based on the Fine model and proposed that plasma radiation generates the electromagnetic radiation during the explosion.…”

Section: Introductionmentioning

confidence: 99%

Study on Electromagnetic Radiation Generated During Detonation

Ren

Chu

2019

Propellants Explo Pyrotec

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Electromagnetic radiation generated by an explosion significantly interferes with devices used in explosion tests. To study this electromagnetic radiation generated during the explosion of explosives, experiments using different masses of composition B explosives were performed, where coils were used to measure electromagnetic pulses generated by the explosion. The acquired signals were de-noised by a wavelet analysis to extract the real signals. Three typical pulses were identified at different times after detonation, which were locally amplified and investigated in detail to differentiate their origins. Based on this analysis, a numerical simulation of the entire explosion process was performed. The EXPLOSION-3D hydrocode was used to simulate the experimental cases, and the prop-agation of the air shock wave over time was modelled. Comparing the experimental and calculated results, we made the following observations. First, an electromagnetic pulse was directly generated by the high-temperature plasma produced by detonation of the composition B explosive; second, an electromagnetic pulse was generated by charged particles, which were in turn generated by the unbalanced and incompletely ionized plasma formed by the shock wave reflected from the ground meeting the front shock wave; and third, an pulse was caused by the shock wave impacting the measuring coils and was considered an experimental artefact and not a result of the explosion.

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Estimates of the Electromagnetic Radiation From Detonation of Conventional Explosives

Cited by 14 publications

References 13 publications

Blast-Related Brain Injury: Imaging for Clinical and Research Applications: Report of the 2008 St. Louis Workshop

Blast-Related Brain Injury: Imaging for Clinical and Research Applications: Report of the 2008 St. Louis Workshop

Blast-related Brain Injury: Imaging for Clinical and Research Applications Report of the 2008 St. Louis Workshop

Study on Electromagnetic Radiation Generated During Detonation

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