DSSSD based Spectrometer of the Dubna Gas-Filled Recoil Separator

TL;DR

This paper presents a DSSSD-based spectrometer for the Dubna Gas-Filled Recoil Separator, demonstrating its application in superheavy element discovery experiments and analyzing edge effects in detector performance.

Contribution

It introduces a new DSSSD spectrometer design optimized for superheavy element detection and discusses its effectiveness and challenges, such as neighbor strip edge effects.

Findings

Successful detection of superheavy elements 114 to 118.

Energy spectra analysis in Yb+48Ca reactions.

Edge effects are primarily due to inter-strip areas.

Abstract

Recently, in the DGFRS related experiments the discoveries of new superheavy elements 114 to 118 were successfully performed. As concerns to a background radical suppression in those experiments it was namely Active correlations method which was applied to this goal. Note, that application of DSSSD detector allows one to apply this method more effectively, although with some difficulties due to neighbor strips edge effects. Present version of the DGFRS spectrometer is presented. Shapes of ER registered energy spectra in the nat Yb+48Ca reaction are presented. First results of its application in the 240Pu+48Ca=Fl complete fusion nuclear reaction are presented too. Conclusion, that edge effects are to a first approximation explained by the role of inter strips area is drawn.