On Thursday 27th February at 4:00 PM CET in the series of webinars co-organized by PROBONO and HB11 Energy, Dr. Evgeny D. Filippov representing Spanish Centre for Pulsed Lasers (CLPU) will deliver a talk entitled “Optimization of laser-driven proton acceleration for fusion-relevant experiments at a high-repetition-rate at Centro de Láseres Pulsados”.
ZOOM Link: https://u-bordeaux-fr.zoom.us/j/85180225287?pwd=OMKgKbOPaaKRqn5qd3GmUL6bWlpbOx.1
Optimization of laser-driven proton acceleration
for fusion-relevant experiments at a high-repetition-rate
at Centro de Láseres Pulsados
by Dr. Evgeny D. Filippov
Spanish Centre for Pulsed Lasers (CLPU)
ABSTRACT:
One of the current problems in laser-induced ion acceleration is the generation of ion sources with extremely high flux
and integral energy in a pulse, e.g. in an inertial confinement fusion fast ignition scheme or in HB11 fusion, as well as in medical applications such as radiotherapy or positron emission tomography.
Experimental characterization of proton beams was performed with ultrashort PW laser pulses in CLPU (VEGA-3, Spain).
We present a versatile high-repetition-rate solid tape target system suitable for relativistic laser plasma-driven secondary sources. We report the use of the tape target for bursts of 1000 shots burst at 1 Hz with mean cut-off energies of about 10 MeV in optimized interaction conditions. The maximum proton energy measured with Thomson Parabola and Time-of-Flight diagnostics shows a significant decrease at the maximum pulse compression. The origin of this behavior is investigated and complemented by numerical simulations and compared with the trends predicted by previous theoretical models. In addition, non-invasive detectors were tested as metrology for the stability of the source, such as a Target Charging Monitor (TCM).
Short Bio:
I am currently a Scientist in a Spanish Centre for Pulsed Lasers (CLPU), Salamanca, Spain. My PhD thesis was defended in 2018 in NRNU MEPhI (Moscow, Russia) with a topic devoted to the X-ray diagnostics of supersonic laser-induced plasma flows with astrophysical relevance. I was actively involved in HEDP research using high power lasers and accelerator facilities, as well as in charge of developing radiative diagnostics methods and equipment for studying dense plasmas. My basic interest is focused now on the ion and electron acceleration by intense laser fields as well as on the development of new experimental methods for ion and x-ray measurements.
