Speaker
Description
The interaction of intense and energetic laser pulses with matter produces wideband particle and electromagnetic radiation. The radiofrequency-microwave part of these emissions can have remarkable intensity (beyond the MV/m order at distances larger than one meter from target) and is known as Electromagnetic Pulses (EMPs) [1]. The way to control these fields is through understanding their source mechanisms [1,2] and the implementation of suitable countermeasures. The latter share some commonalities with Electromagnetic Compatibility (EMC) techniques, but that need to consider the specific nature of these laser-generated transient fields. This presentation will describe EMP source mechanisms, their diagnostic methodologies and the available techniques for their control and minimization, with focus on both theoretical modelling and experiments.
References
[1] F. Consoli et al., “Laser produced electromagnetic pulses: generation, detection and mitigation”, High Power Laser Science and Engineering, 8, e22 (2020).
[2] F. Consoli et al., “Sources and space–time distribution of the electromagnetic pulses in experiments on inertial confinement fusion and laser–plasma acceleration”, Philosophical Transactions of the Royal Society A - Mathematical, Physical and Engineering Science A 379: 20200022 (2020).
Acknowledgment
This work has been carried out within the framework of the EUROfusion Consortium, funded by the European Union via the Euratom Research and Training Programme (Grant Agreement No 101052200 — EUROfusion). Views and opinions expressed are however those of the authors only and do not necessarily reflect those of the European Union or the European Commission. Neither the European Union nor the European Commission can be held responsible for them.
