Use of erbium or composed of erbium, as a radio - attenuator, from radio - attenuator and article of protection against the ionizing radiation, comprising such an agent

摘要

The present invention relates to the use of erbium, or a compound of erbium, as a radio - attenuator, that is - to - say as an agent having the property of the ionizing radiation, in particular, the electromagnetic radiation and x. it also relates to a radio - attenuator having a composition based on radio - attenuating erbium, or a compound of erbium, as well as to an article of protection, individually or collectively, against the ionizing radiation, comprising this material. Applications: nuclear medicine (scan, radiotherapy, etc.), radiology medical imaging, the nuclear industry, etc.