Numerical Modelling of Active Target Time Projection Chamber for Low Energy Nuclear Physic

TL;DR

This paper presents a hydrodynamic numerical model for an active target Time Projection Chamber, used to improve low energy nuclear reaction tracking, validated through a case study involving helium-carbon scattering.

Contribution

The paper introduces a novel hydrodynamic simulation model for active target TPCs, aiding in device optimization and performance prediction for nuclear physics experiments.

Findings

Model accurately predicts beam-induced space charge effects.

Optimizes anode readout segmentation for better tracking.

Validated against experimental track distortions.

Abstract

A numerical model based on hydrodynamic approach has been developed to emulate the device dynamics of active target Time Projection Chamber which is utilized for studying nuclear reaction through three dimensional tracking of concerned low energy particles. The proposed model has been used to investigate the performance of a prototype active target Time Projection Chamber, namely SAT-TPC, to be fabricated at Saha Institute of Nuclear Physics, for its application in nuclear physics experiments. A case study of non-relativistic elastic scattering $^4He+^{12}C$ with beam energy $25~MeV$ and current $2.3~pA$ has been opted for this purpose. The effect of beam induced space charge on the tracking performance the SAT-TPC prototype has been studied to optimize the beam current and scheme of the anode readout segmentation. The model has been validated by comparing its results to that of a particle model used to explain observed distortion in scattered particle tracks in a low energy nuclear physics experiment.