Development of a dedicated beam forming system for material and bioscience research with high intensity, small field electron beam of LILLYPUT 3 accelerator at Wroclaw Technology Park

TL;DR

This paper presents the design and optimization of a small field, high dose rate electron beam system for material and bioscience research using the LILLYPUT 3 accelerator, employing Monte Carlo modeling to compare beam scanning and collimation methods.

Contribution

It introduces a novel electron beam irradiation system optimized for small field, high dose rate applications in material and bioscience research, using Monte Carlo simulations for design validation.

Findings

Collimation method chosen for simplicity and cost-effectiveness.

Both beam scanning and collimation systems have comparable efficiency.

System currently under fabrication at the National Centre for Nuclear Research.

Abstract

The primary use of the LILLYPUT 3 accelerator at the Nondestructive Testing Laboratory at Wroclaw Technology Park is X-ray radiography for nondestructive testing, including R&D of novel techniques for industrial and medical imaging. The scope of possible applications could be greatly extended by providing a system for irradiation with electron beam. The purpose of this work was to design such a system, especially for high dose rate, small field irradiations under cryogenic conditions for material and bioscience research. In this work, two possible solutions, based either on beam scanning or scattering and collimation, were studied and compared. It was found that under existing conditions efficiency of both systems would be comparable. The latter one was adopted due to its simplicity and much lower cost. The system design was optimized by means of detailed Monte Carlo modeling. The system is being currently fabricated at National Centre for Nuclear Research in \'Swierk.