Detailed Calculation with Full Damage Cascades - This option follows every recoiling atom until its energy drops below the lowest displacement energy of any target atom. Hence all collisional damage to the target is analyzed. The one exception is for very rare massive cascades which exceed 20,000 atoms. At this point TRIM runs out of memory, and an error message is posted indicating that the limit of 20,000 recoiling atoms in a single cascade has been exceeded. The calculation continues after the message is posted. This error can be eliminated using the datafile: ..DataTRIM.cfg. See the later section in this chapter on “Changing Maximum Size of Recoil Cascades (TRIM.cfg)”