ИСТИНА

Obtaining highly charged ion beams from solids is an urgent task for modern science. It is used in such areas as radiation physics, solid state physics, nanotechnology, and in the synthesis of superheavy elements (SHE). One of the main methods of obtaining charged ion beams for the electron cyclotron resonance (ECR) is method MIVOC (Metal Ions from Volatile Compounds), based on the evaporation of organometallic compounds with a relatively high vapor pressure (10−3 Torr) at room temperature [1]. To ensure a sufficient ion flux, a high and stable vapor pressure in the ionization chamber is required. At the same time, the initial compound should not contain heteroatoms (N, O, S, P, Si, Hal). In this case, the use of highly volatile organometallic compounds, such as chromocene (54Cr(C5H5)2), to obtain beams of 54Cr ions is promising. To increase the intensity of the 54Cr ion beam at the STE plant, the JINR Laboratory of Nuclear Reactions needs to develop a method for regenerating substances at all stages of obtaining and synthesizing the target product 54Cr(C5H5)2. The synthesis of chromocene included the following stages: In the course of this work, 54Cr(C5H5)2 was synthesized and used in the experiment on the fusion of 54Cr and 238U with the formation of a previously unknown isotope 288Lv. A method for regenerating 54Cr isotope waste has also been developed and successfully applied, which significantly reduces the consumption of the target 54Cr isotope.