Following the Chernobyl accident, the enrichment of fuel was changed from 2.0% to 2.4%, to compensate for control rod modifications and the introduction of additional absorbers.
切爾諾貝利事故之後，該燃料濃縮度由2.0%增加到2.4%，以補償控制棒的修改和更多吸收劑的引入。