--- /tmp/old12157-1	2013-05-22 12:24:54.000000000 +0200
+++ /tmp/new12157-1	2013-05-22 12:24:54.000000000 +0200
@@ -1,7 +1,6 @@
 
 
 
-
 \section*{Introduction}
 The high-fluence ion bombardment, generally greater than about $10^7
 $ ions cm$^2$, of virtually all solids produces a fascinating and rich