Method for forming neutron images

摘要

Stimulable phosphor sheets are superposed one upon another. Each stimulable phosphor sheet is provided with a layer of a substance, which absorbs neutrons and emits secondary particles, and a layer of a stimulable phosphor, which can store energy from the secondary particles. The stimulable phosphor sheets are exposed to a neutron beam carrying image information, and neutron images are thereby stored on the stimulable phosphor sheets. Image signals representing the neutron images stored on the stimulable phosphor sheets are then obtained. The image signal components of the image signals are then added to each other, which represent corresponding picture elements in the neutron images. An image signal representing the neutron images stored on the stimulable phosphor sheets is thereby obtained.