Project Halo

Overview

Project Halo is a compact, moderated source assembly designed around a single constraint: a team of four should be able to run a controlled irradiation campaign, start to finish, without booking time on a reactor floor.

The assembly pairs a low-yield source with a tuneable moderator stack and a shielded sample position. Everything that touches the neutron economy — geometry, materials, and the sample holder itself — is modelled first and then measured, so the spectrum at the sample is a number we can defend rather than a number we inherited.

This paragraph is placeholder text. Replace it with the real motivation for the project, the gap in the literature it addresses, and what a successful outcome looks like.

Approach

Geometry and moderator design

Placeholder text describing how the moderator stack is laid out, what materials are used, and how the design was arrived at. Mention the trade-off you actually care about: thermal flux against background, say, or footprint against shielding mass.

Shielding and dose modelling

Placeholder text describing the shielding model, the code used to build it, and how the modelled dose rates were checked against survey measurements in the bay.

Sample handling and campaign procedure

Placeholder text describing how samples are mounted, tracked and retrieved, and what a single campaign looks like from cold start to data release.