▁patterns ▁minim ize ▁many ▁of ▁these ▁effects . ▁The ▁scan / de - scan ▁procedure ▁reduces ▁ion ▁channel ing ▁because ▁the ▁pattern ▁is ▁generated ▁off ▁of ▁the ▁zone ▁axis . ▁Integr ation ▁via ▁pre cess ion ▁of ▁the ▁beam ▁minim izes ▁the ▁effect ▁of ▁non - system atic ▁in el astic ▁scatter ing , ▁such ▁as ▁K ik uch i ▁lines . ▁F ew ▁ref lections ▁are ▁strongly ▁excited ▁at ▁any ▁moment ▁during ▁pre cess ion , ▁and ▁those ▁that ▁are ▁excited ▁are ▁generally ▁much ▁closer ▁to ▁a ▁two - be am ▁condition ▁( d ynam ically ▁couple d ▁only ▁to ▁the ▁forward - sc atter ed ▁beam ). ▁Furthermore , ▁for ▁large ▁pre cess ion ▁angles , ▁the ▁radius ▁of ▁the ▁excited ▁La ue ▁circle ▁becomes ▁quite ▁large . ▁These ▁contributions ▁combine ▁such ▁that ▁the ▁overall ▁integrated ▁diff raction ▁pattern ▁res emb les ▁the ▁kin emat ical ▁pattern ▁much ▁more ▁closely ▁than ▁a ▁single ▁zone ▁axis ▁pattern . ▁ ▁Bro ader ▁range ▁of ▁measured ▁ref lections : ▁The ▁La ue ▁circle ▁( see ▁E wald ▁sphere ) ▁that ▁is ▁excited ▁at ▁any ▁given ▁moment ▁during ▁pre cess ion ▁extends ▁farther ▁into ▁reci pro cal ▁space . ▁After ▁integration ▁over ▁multiple ▁pre cess ions , ▁many ▁more ▁ref lections ▁in ▁the ▁zero eth ▁order ▁La ue ▁zone ▁( Z OL Z ) ▁are ▁present , ▁and ▁as ▁stated ▁previously , ▁their ▁relative ▁intens ities ▁are ▁much ▁more ▁kin emat ical . ▁This ▁provides ▁consider ably ▁more ▁information ▁to ▁input ▁into ▁direct ▁methods ▁calculations