Performance of the prototype beam drift chamber for LAMPS at RAON with proton and Carbon-12 beams

TL;DR

This paper evaluates a prototype beam drift chamber's performance using proton and Carbon-12 beams, focusing on its efficiency and resolution for potential use in RAON's LAMPS experiment.

Contribution

It presents the construction and performance evaluation of a prototype beam drift chamber with new insights into its efficiency and resolution using high-energy ion beams.

Findings

Track reconstruction efficiency measured as a function of high voltage.

Position resolution achieved with different ion beams.

Performance data supports future use in RAON experiments.

Abstract

Beam Drift Chamber (BDC) is designed to reconstruct the trajectories of incident rare isotope beams provided by RAON (Rare isotope Accelerator complex for ON-line experiments) into the experimental target of LAMPS (Large Acceptance Multi-Purpose Spectrometer). To conduct the performance test of the BDC, the prototype BDC (pBDC) is manufactured and evaluated with the high energy ion beams from HIMAC (Heavy Ion Medical Accelerator in Chiba) facility in Japan. Two kinds of ion beams, 100 MeV proton, and 200 MeV/u $^{12}$C, have been utilized for this evaluation, and the track reconstruction efficiency and position resolution have been measured as the function of applied high voltage. This paper introduces the construction details and presents the track reconstruction efficiency and position resolution of pBDC.