The characterization of a hybrid telescope detector for low energy alpha detection

TL;DR

This paper presents a hybrid telescope detector combining gas and solid-state detectors for low-energy alpha particle detection, enabling precise measurements in nuclear physics research.

Contribution

The development and characterization of a novel hybrid detector for low-energy alpha particles, optimized for sensitivity down to 0.89 MeV, using a combination of gas and silicon detectors.

Findings

Effective detection of alpha particles as low as 0.89 MeV.

Optimized electric field and pressure conditions for maximum sensitivity.

Successful implementation of ΔE-E particle identification technique.

Abstract

Characterization of a hybrid ${\it telescope}$ with gas transmission detector ($\Delta$E) and a solid-state stop detector (E) has been fabricated for detection of low energy $\alpha$ particles between 5 to 1 MeV. The detector is developed for utilization in the study of alpha excitation function in (p.$\alpha$) reaction. The gas ionization chamber, operated in axial field mode, measures the differential energy loss ($\Delta$E), while the residual energies are measured by silicon detector. Particle identification is realized by implementing the $\Delta$E-E technique. The optimum sensitivity of the detector as a telescope has been studied down to the lowest energy value of 0.89 MeV $\alpha$-particles with a suitable combination of electric field and pressure or E/p value in the ionization region.