Superheavy element chemistry at GARIS

Abstract

Abstract. A gas-jet transport system has been installed to the RIKEN GAs-filled Recoil Ion Separator, GARIS to start up SuperHeavy Element (SHE) chemistry. This system is a promising approach for exploring new frontiers in SHE chemistry: background radioactivities from unwanted byproducts are suppressed, a high gas-jet transport yield is achieved, and new chemical reactions can be investigated. a,b were investigated in detail with the rotating wheel apparatus forand spontaneous fission spectrometry. Present status and perspectives of the SHE chemistry at GARIS are also briefly presented.

Colloquium : Superheavy elements: Oganesson and beyond

“…New-generation, high-current stable-beam accelerators will enable new discoveries at the picobarn level. The dedicated facilities in Dubna (Dmitriev et al, 2016) and RIKEN (Haba, 2016) will substantially increase the production of superheavy species for physics and chemistry. Other major players in different areas of superheavy nuclei research include GSI/FAIR in Germany (Münzenberg, 2015;Münzenberg et al, 2017), ORNL (Roberto et al, 2015;Roberto and Rykaczewski, 2018) and Berkeley (Gates, 2016;Gates et al, 2015Gates et al, , 2018 in the USA, GANIL in France (Ackermann and Theisen, 2017;Theisen, 2017), and several other major laboratories worldwide (Back, 2017;Hinde et al, 2017;Yang et al, 2013;…”

Chemical Characterization of a Volatile Dubnium Compound, DbOCl3

“…Only after the oxychloride compounds exited the chromatographic column, they were attached to KCl aerosol particles and transported to the measurement system. For the detection of 262 Db and its daughter 258 Lr, [16] the IGC setup was connected to the MANON (measurement system for alpha particle and spontaneous fission events on‐line) apparatus [17] . By determining the yields of DbOCl 3 at the applied isothermal temperatures, the external chromatogram was obtained.…”

Chemical Characterization of a Volatile Dubnium Compound, DbOCl3

“…Only after the oxychloride compounds exited the chromatographic column, they were attached to KCl aerosol particles and transported to the measurement system. For the detection of 262 Db and its daughter 258 Lr, [16] the IGC setup was connected to the MANON (measurement system for alpha particle and spontaneous fission events on‐line) apparatus. [17] By determining the yields of DbOCl 3 at the applied isothermal temperatures, the external chromatogram was obtained.…”