HPLSE editorial tribute to Professor David Neely

Danson, C.; McKenna, P.

doi:10.1017/hpl.2020.52

Cited by 2 publications

(1 citation statement)

References 14 publications

(14 reference statements)

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“…The techniques outlined in this paper are testament to the lasting influence of the late Prof. David Neely on diagnostics of magnetic and electric fields in experiments with high power lasers. David's work spanned the entire field of high power laser science, from laser technology to plasma physics, facility operation and diagnostic development [31,32]. He was interested in what could be learned from radiation and charged particles emitted from the laser focal spot [33][34][35] and reciprocally how laser and target properties could be manipulated to produce new radiation sources [36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Measuring magnetic fields in laser-driven coils with dual-axis proton deflectometry

Bradford

Dearling

Ehret

et al. 2021

Plasma Phys. Control. Fusion

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By driving hot electrons between two metal plates connected by a wire loop, high power lasers can generate multi-tesla, quasi-static magnetic fields in miniature coil targets. Many experiments involving laser-coil targets rely on proton deflectometry directed perpendicular to the coil axis to extract a measurement of the magnetic field. In this paper, we show that quantitative measurements using perpendicular probing are complicated by the presence of GV m −1 electric fields in the target that develop on sub-ns timescales. Probing parallel to the coil axis with fiducial grids is shown to reliably separate the electric and magnetic field measurements, giving current estimates of I ≈ 5 kA in 1 mm-and 2 mm-diameter wire loops. An analytic model of proton deflection in electric and magnetic fields is used to benchmark results from the particle-in-cell code and help deconvolve the magnetic and electric field deflections. Results are used to motivate a new experimental scheme that combines a * Authors to whom any correspondence should be addressed.Original Content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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Section: Introductionmentioning

confidence: 99%

Measuring magnetic fields in laser-driven coils with dual-axis proton deflectometry

Bradford

Dearling

Ehret

et al. 2021

Plasma Phys. Control. Fusion

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History of military laser technology development in military applications

Bernatskyi

Sokolovskyi

2022

Hist. sci. technol.

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The aim of this research is to study the development as well as the known cases of military applications of laser technologies – from the first lasers employed in auxiliary systems to modern complex independent laser systems. For better understanding and systematization of knowledge about development of historical applications in the military field, an analysis of publicly known knowledge about their historical applications in the leading world countries was conducted. The study focuses on development that was carried out by the superpowers of the Cold War and the present era, namely the United States, the Soviet Union and the Peoples Republic of China, and were built in metal. Multiple avenues of various applications of laser technology in military applications were studied, namely: military laser rangefinders; ground and aviation target designators; precision ammunition guidance systems; non-lethal anti-personnel systems; systems, designed to disable optoelectronics of military vehicles; as well as strategic and tactical anti-air and missile defense systems. To summarize and compare the results, an analysis of a number of previous works was considered, which considered the historical development, prospects and problems of the laser weaponry development. The issues of ethical use of laser weapons and the risks of their use in armed conflicts, which led to an international consensus in the form of conventions of the United Nations and the International Committee of the Red Cross, were also considered. As a result of the analysis, a systematic approach to the classification of applications of laser technology in military products by three main areas of development was proposed: ancillary applications, non-lethal direct action on the human body and optical devices of military equipment, and anti-aircraft and anti-missile defensive systems. Due to the constant comprehensive modernization of laser technology systems in use, it was decided not to use the periodic classification model, but to indicate important and key events that indicated the main directions of further developmental work. However, it is important to note that the main focus of historical development of laser weapons depended not only on the technological limitations of the time, but also on the military-geopolitical situation in the world.

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HPLSE editorial tribute to Professor David Neely

Cited by 2 publications

References 14 publications

Measuring magnetic fields in laser-driven coils with dual-axis proton deflectometry

Measuring magnetic fields in laser-driven coils with dual-axis proton deflectometry

History of military laser technology development in military applications

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