封记是一项古老而又有活力的保护技术,古代就已开始使用的加盖印记的纸封条、封泥或各种形式的锁、胶封、腊封及铅封,直到现在还经常被应用。在国际上,封记普遍应用于核保障领域中核材料的封隔与监视,主要用于标识已核查过或被封存的物料与设备,以保证核材料控制与衡算信息的完整性和连续性,防止记录的信息被篡改,提高现场核查的效率。另外,封记也应用于监督核 Seal is an ancient and dynamic protection technology, stamp seal, seal or various forms of lock, plastic seal, wax seal and seal that have been used in ancient times until now, application. Internationally, seals are commonly used for the containment and surveillance of nuclear materials in the field of nuclear security. They are mainly used to identify materials and equipment that have been inspected or sealed to ensure the integrity and continuity of nuclear material control and accounting information , To prevent the recorded information has been tampered with to improve the efficiency of on-site verification. In addition, the seal also applies to the supervision of the nuclear