Preparation Of Erbium Nanoclusters By Magnetron Sputtering And Its Hydrogen(Deuteration) Studies

In the research of laser-DD cluster nuclear fusion,how to increase the energy of deuterium ions generated by the interaction between deuterium clusters and lasers,and thus increase the yield of fusion neutrons,has become a research hotspot for femtosecond ultra-strong laser-driven deuterium fusion reactions.To a certain extent,the particle size of the deuterium clusters is increased,and by introducing high Z atoms(deuterium-containing heteronuclear clusters),the energy of the deuterium ions can be effectively increased after the cluster explosion by Coulomb repulsion,and the fusion is further improved.This paper proposes a heavier heteronuclear cluster containing deuterium-deuterated erbium nanoclusters(Z = 68),and carried out basic research on its preparation technology,and obtained the following main conclusions:A metal erbium thin film was prepared by DC magnetron sputtering.The influence of sputtering power on the deposition rate and the microstructure of the thin film was studied.In the range of sputtering power of 20 W ~ 60 W,the metal erbium film exhibits a columnar crystal growth pattern,all of which are hexagonal close-packed structures,and have a obvious(110)crystal plane preferred orientation.Its microstructure characteristics are obviously different from the metal erbium thin films prepared by electron beam evaporation and other methods.The erbium hydride film was prepared by DC magnetron sputtering,and the effect of hydrogen flow on the film phase composition was studied.When the hydrogen flow rate increased to 3 sccm,the all phases were erbium hydride phases,and the erbium-hydrogen ratio approached 1:2;when the hydrogen flow rate increased to 8 sccm,the erbium-hydrogen ratio approached 1:3.The above studies verified the feasibility of preparing hydrogen/deuterated erbium nanoclusters.Metal plasma erbium nanoclusters were prepared by plasma gas phase coagulation technology based on high-pressure magnetron sputtering,and the process parameters such as sputtering current,argon gas flow,and the length of dew zone were studied in detail on the size of erbium nanoclusters And the influence of the distribution,and focus on comparing the changes of the air pressure in the two different dew areas.The average particle size of the near-spherical erbium nanoclusters can be adjusted within the range of 6 nm ~ 10 nm.Based on this,deuterium erbium nanoclusters can be prepared by introducing 1 sccm of deuterium gas into the plasma area of the aggregation.