2019.10.06.
The ideas presented in the publication "Radiation dominated implosion
with flat target" by L.P. Csernai et al., first appeared in 2019 March (see
arXiv:1903.10896, later on published in
Physics of Wave Phenomena, 28 (3), 187-199 (2020).
https://doi.org/10.3103/S1541308X20030048
), based on the
Patent of Csernai, Kroo and Papp (2017) included proposal of verification
experiments for the two basic ideas of the patent. These were (i)
the regulation or increase the absorptivity of the laser target
by implanting nano-antennas into the target as first. Then (ii)
regulating the absorptivity by a layered target with different
absorptivity in the layers to achieve simultaneous ("time-like")
ignition or phase transition in the whole flat target. This eliminates the
occurrence of instabilities.
For the first step (i), an implanted target from Cyclic Olefin Copolymer (COC)
was implanted with nanorod antennas by Andras Deák, Béla Pecz and colleagues
at the Center for Energy Research. The idea was discussed during the
Summer and Fall with Deák, Pecz, Kroo and Csernai. Instead of ignition we
aimed to detect the melting phases transition of COC. Then the implanted
target was manufactured, based on the theoretical predictions.
These targets were aimed for testing later at the Wigner Research
Center for Physics (WRCP).[LPC]