Graphene-based nanocomposites as gamma- and X-ray radiation shield.

Commonly used materials for protection against ionizing radiation (gamma and X-ray energy range) primarily rely on high-density materials, like lead, steel, or tungsten. However, these materials are heavy and often impractical for various applications, especially where weight is a key parameter, like in avionics or space technology. Here, we study the shielding properties of an alternative light material-a graphene-based composite with a relatively low density ~ 1 g/cm.

Temperature drift during environmental radiation monitoring and its unfolding.

The aim of the presented paper is to examine the temperature drift and its unfolding for an environmental monitor equipped with a LaBr(Ce) detector. It is known that temperature could influence energy, shape, and efficiency calibration. Consequently, when ambient temperature changes, the full energy absorption peak moves in the resulting spectrum.