PROBLEM TO BE SOLVED: To provide a device and method that avoids such damage, in particular mechanical damages of radiating elements.SOLUTION: A device 1 for the sterilization of containers 10 comprises a sterilization unit 2 which has a rod-like body 4, insertable into an interior space of the containers 10 through an opening of the containers 10, and which irradiates an inner wall of the containers 10 loaded with a radiation, and a movement device which generates a relative movement between the containers 10 and the sterilization unit 2 such that the rod-like body 4 is insertable into the receptacles 10. The device has a collision prevention device 20 which prevents collision of the rod-like body 4 with the container 10.【課題】放射要素の損傷、とくには機械的な損傷を防止する装置および方法を提供する。【解決手段】容器10の開口を通って前記容器10の内部空間へと導き入れることができる棒状の本体4を有しており、前記容器10の内壁に放射線を作用させる殺菌ユニット2と、前記棒状の本体4を前記容器10へと導き入れることができるようなやり方で前記容器10と前記殺菌ユニット2との間に相対移動を生み出す移動装置とを備える容器10の殺菌のための装置1であって、前記棒状の本体4の前記容器10との衝突を防止する衝突防止装置20を有する。【選択図】図3