U²³⁸ Radiative Capture in PWR-2 Blanket Geometry

Measurements of ρ²⁸, the ratio of epithermal to thermal neutron radiative capture in U²³⁸, has been carried out in the plate fuel geometry planned for the second Shippingport Pressurized Water Reactor (PWR-2). The experimental results have been compared with two-dimensional diffusion theory analyses, and the agreement is considered satisfactory.