An electron beam irradiator irradiates a plastic container with an electron beam emitted from an electron beam irradiating device to sterilize the plastic container while the plastic container is being supported and fed by a container gripper of a container feeder. An electron trapping member is inserted into the plastic container through a mouth thereof. With the electron trapping member being placed in the plastic container, a current measuring unit measures a current flowing through the electron trapping member while the plastic container is being irradiated with the electron beam, thereby measuring a dose of electrons from the electron beam which has entered the plastic container to ascertain whether the plastic container is appropriately sterilized or not.本發明提供一種電子束照射裝置,其係對樹脂製容器2照射電子束而進行殺菌之裝置,為了確認已進行適宜的殺菌,而測定到達樹脂製容器2內部的電子量。本發明係對由容器搬送裝置20的夾持器28所保持且搬送的樹脂製容器2自電子束照射手段16照射電子束而進行殺菌之裝置,當照射電子束時,將電子捕捉構件(接地棒)60自樹脂製容器2的口部2b插入內部,並利用電流測定手段(電流計)76測定之自此電子捕捉構件60流至接地側的電流,藉此測定到達樹脂製容器2內部側的電子量。2...樹脂製容器2a...凸緣2b...口部2c...底面16...電子束照射手段20...容器搬送裝置28...支撐手段(夾持器)30...旋轉體42...控制裝置60...電子捕捉構件(接地棒)60a...下端部62...支柱64...支撐構件66...升降手段68...水平安裝構件70...保持構件72...固定接點74...可動接點75...絕緣電線76...電流測定手段(電流計)
