Neutron Concentrator, a Hypothetical Small Neutron Star based on the Emission of Neutrons in Minerals Such as Granite and Other Commonly Available Objects. GJRE [Internet]. 2023 Mar. 24 [cited 2026 Jun. 5];23(E1):25-30. Available from: https://testing.engineeringresearch.org/index.php/GJRE/article/view/101574