Intense Source of Slow Positrons

TL;DR

This paper presents a new design for an intense, slow positron source using low-angle pair production from a 10 MeV electron beam, with potential applications in fundamental research and industry.

Contribution

The paper introduces a novel positron source design that efficiently produces and collects slow positrons for research and industrial use.

Findings

Design achieves efficient positron collection

Potential for high-intensity positron production

Applicable to fundamental and applied sciences

Abstract

We describe a novel design for an intense source of slow positrons based on pair production with a beam of electrons from a 10 MeV accelerator hitting a thin target at a low incidence angle. The positrons are collected with a set of coils adapted to the large production angle. The collection system is designed to inject the positrons in a Greaves-Surko trap [1]. Such a source could be the basis for a series of experiments in fundamental and applied research and would also be a prototype source for industrial applications which concern the field of defect characterization in the nanometer scale.