This is the tutorial written by the 'triple G' group! In this tutorial, we will explain step by step how we work on the project [[https://wikihost.nscl.msu.edu/JIOSS/lib/exe/fetch.php?media=project_for_the_jina_ion_optics_for_recoil_separator_school_v4.pdf|here]]
In step 2, we chose the 15O+4He radiative capture reaction to study. We use the example from the wiki [[https://wikihost.nscl.msu.edu/JIOSS/lib/exe/fetch.php?media=dispersion.zip|Dispersion]] as a starting point and do the following:
  1, Find the lines as shown in the picture below:
  
  

 DL .1; {drift length .1 m}
 
 
 DP 1. 45. .05; {parallel face dipole, radius 1.0 m, angle 45 deg, aperture}
 Dl .1;{drift length .1 m}
 --------------------
   2, Run cosy and get the following output (and discussed the meanings of the first column which is related to the x positions in the final coordinates):
   --------------
  1.000000     0.1665335E-15 0.0000000E+00 0.0000000E+00-0.4147687     100000
  0.9071068      1.000000     0.0000000E+00 0.0000000E+00-0.1881197     010000
  0.0000000E+00 0.0000000E+00 0.6053100    -0.6936741     0.0000000E+00 001000
  0.0000000E+00 0.0000000E+00 0.9133969     0.6053100     0.0000000E+00 000100
  0.0000000E+00 0.0000000E+00 0.0000000E+00 0.0000000E+00  1.000000     000010
  0.1881197     0.4147687     0.0000000E+00 0.0000000E+00 0.2260644     000001
  ---------------
   3, Set the properties of the beam by changing the 'SB' command (dE/E is 5%):
   ------------
   SB 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.025 0.0 0.0 0.0
   ------------
   4, Run the cosy