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E-ΔE detection module of DGFRS-2 setup.

D Ibadullayev¹, A N Polyakov², YuS Tsyganov²

¹Joint Institute for Nuclear Research, 141980, Dubna, Russian Federation; Institute of Nuclear Physics, 050032, Almaty, Kazakhstan; L.N. Gumilyov Eurasian National University, 010000, Astana, Kazakhstan.

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine

|July 16, 2024

Summary

A new E-ΔE detector system enhances superheavy isotope synthesis. Adding a biased electrode stabilizes the gas detector

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Area of Science:

Nuclear Physics
Heavy Ion Physics
Detector Technology

Background:

Superheavy isotope synthesis is crucial for nuclear physics research.
Complete fusion reactions are a primary method for creating these elements.
Existing detection systems face efficiency challenges at high beam intensities.

Purpose of the Study:

To develop and implement an improved E-ΔE detection module for superheavy isotope research.
To address the observed decrease in gas ΔE counter efficiency during experiments.
To enable stable and efficient detection of Evaporation Residues (ERs) at the JINR DC-280 cyclotron.

Main Methods:

Utilizing a position-sensitive double-sided strip detector (DSSD).
Employing a low-pressure pentane-filled ΔE chamber.
Introducing an additional negatively biased electrode to the ΔE detector.

Main Results:

The new E-ΔE module demonstrated effective detection of Evaporation Residues (ERs).
A significant decrease in registration efficiency was observed with the gas ΔE counter at high beam intensities (5-7 pμA).
The addition of a biased electrode stabilized the ΔE detector's operation, improving overall efficiency.

Conclusions:

The enhanced E-ΔE detection module is crucial for the successful synthesis of superheavy isotopes.
The biased electrode solution effectively overcomes efficiency limitations in gas detectors.
This advancement supports ongoing research at the JINR DC-280 cyclotron.