Allen [12] analyzed the floor roughness evolution of ion-beam polishing fused silica, and the results showed the area roughness worth amplified with an increase in the elimination depth. Concurrently, experiments have also shown that ion-beam sputtering can properly reduce surface area roughness [13,fourteen]. Bradley and Harper recognized the linear evolution https://www.facebook.com/permalink.php?story_fbid=pfbid0TQxdDrEw2QBDdBiTLRwtSVDMK67p7cEebAmUfcW2zdNWdKoBZhwWHts6KSR8v7fKl&id=61560512640678&__cft__[0]=AZVQbUvIrOYQ1vVgfIFsWEaNI4oChHMznkvA098JPWtzGHMO2Z92CTgAZ8IT2bSubj4ehPjT8GEkn3Vd5Fi9T8ISVN6raiTBNtugf8IRalarjQpEnfX5gGE_9KiaErmzR0l3cRSFO0dLrmHUFYfsBYUJyxtRqPGJVse7jbIXSJFkmncCSn-dVYY-RFpP8DRCXqD-vzG6a1L-td14sDUV74QU&__tn__=%2CO%2CP-R