Experimental demonstration of an electromagnetic pulse mitigation concept for a laser driven proton source

0501484 - FZÚ 2019 RIV US eng J - Journal Article
Dubois, J.L. - Rączka, P. - Hulin, S. - Rosiński, M. - Ryć, L. - Parys, P. - Zaras-Szydlowska, A. - Makaruk, D. - Tchórz, P. - Badziak, J. - Wolowski, J. - Ribolzi, J. - Tikhonchuk, Vladimir
Experimental demonstration of an electromagnetic pulse mitigation concept for a laser driven proton source.
Review of Scientific Instruments. Roč. 89, č. 10 (2018), s. 1-9, č. článku 103301. ISSN 0034-6748. E-ISSN 1089-7623
R&D Projects: GA MŠMT EF16_013/0001793
Grant - others:OP VVV - ELITAS(XE) CZ.02.1.01/0.0/0.0/16_013/0001793
Institutional support: RVO:68378271
Keywords : experimental demonstrations * frequency ranges * high energy proton * laser propagation direction
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 1.587, year: 2018

The targets that are used to produce high-energy protons with ultra-high intensity lasers generate a strong electromagnetic pulse (EMP). To mitigate that undesired side effect, we developed and tested a concept called the “birdhouse.” It consists in confining the EMP field in a finite volume and in dissipating the trapped electromagnetic energy with an electric resistor. A prototype was tested at a 10 TW 50 fs laser facility. The recorded average EMP mitigation ratio is about 20 for frequencies from 100 MHz to 6 GHz. The EMP mitigation ratio attains the level of 50 in the frequency range of 1–2 GHz where microwave emission is maximal. We measured the intensity of proton emission in two directions: along the laser propagation direction and along the edge of the proton beam.
Permanent Link: http://hdl.handle.net/11104/0293519