puts("-P <file> \t specify implantation profile file");
puts("-N <file> \t specify nuclear energy loss profile file");
printf("-H <value> \t collisions per ion in simulation window (default %d)\n",CPI);
puts("-P <file> \t specify implantation profile file");
puts("-N <file> \t specify nuclear energy loss profile file");
printf("-H <value> \t collisions per ion in simulation window (default %d)\n",CPI);