Observed arrival · 2026-09-07

OpenPSN puts a neutron transport solver in the browser

openpsn-ai.com Observed source

Editorial interest 88/100 Selection signal · not a rating of the site

An open-source, browser-based solver for deterministic neutron transport using the Phase Space Nodal method.

Landing page captured for the 2026-09-07 issue.

Field notes

OpenPSN exposes a deterministic neutron transport calculation through a browser interface rather than requiring a local research-code setup. Its examples include weak and strong absorber cases, configurable grids up to 6×6, and a central-source test in a 7 cm box. The page compares its Phase Space Nodal results with discrete-ordinates-style MOC behavior, emphasizing continuous angular integration as the mechanism that avoids persistent ray patterns. It also links the live demonstration to a paper and GitHub repository.

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●ProPolished or operationally mature

◎NicheUnusually specific use

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