Influence of target thickness on the release of radioactive atoms

TL;DR

This paper investigates how target thickness affects the release efficiency of radioactive atoms from fission product targets, using experimental measurements and Monte Carlo simulations to understand the underlying mechanisms.

Contribution

It provides new insights into the influence of target thickness on radioactive atom release, combining experimental data with simulation models.

Findings

Thicker targets can alter release fractions of radioactive atoms.

Monte Carlo simulations help explain the diffusion and release processes.

Experimental results vary between graphite and uranium carbide targets.

Abstract

Nowadays, intense exotic beams are needed in order to study nuclei with very short half-life. To increase the release efficiency of the fission products, all the target characteristics involved must be improved (e.g. chemical composition, dimensions, physicochemical properties such as grain size, porosity, density etc). In this article, we study the impact of the target thickness. Released fractions measured from graphite and uranium carbide pellets are presented as well as Monte-Carlo simulations of the Brownian motion.