[{"id":0,"text":"nu_mu  838.3 MeV","data":{"traj_x":[20.5, 239.5],"traj_y":[-92.3, -491.2],"traj_z":[499.7, 292.6],"start":[20.5, -92.3, 499.7],"end":[239.5, -491.2, 292.6]},"children":[{"id":0,"text":"nu_mu  630 MeV","data":{"traj_x":[239.5,304.4,309.1,309.2,338.3,339.0,339.0,386.7,386.7,416.5,2277.0],
"traj_y":[-491.2,-600.0,-607.8,-608.1,-656.8,-658.1,-658.1,-738.1,-738.1,-788.1,-3908.8],
"traj_z":[292.6,338.8,342.1,342.3,363.0,363.5,363.5,397.5,397.5,418.8,1745.7],
"start":[239.5, -491.2, 292.6],"end":[2277.0, -3908.8, 1745.7]},"children":[],"icon":"jstree-file"},{"id":1,"text":"proton  83 MeV","data":{"traj_x":[239.5,237.3,237.2,237.2],
"traj_y":[-491.2,-492.6,-492.6,-492.6],
"traj_z":[292.6,287.6,287.6,287.6],
"start":[239.5, -491.2, 292.6],"end":[237.2, -492.6, 287.6]},"children":[],"icon":"jstree-file"},{"id":4,"text":"neutron  72 MeV","data":{"traj_x":[239.5,298.2],
"traj_y":[-491.2,-492.4],
"traj_z":[292.6,259.8],
"start":[239.5, -491.2, 292.6],"end":[298.2, -492.4, 259.8]},"children":[],"icon":"jstree-file"}]}]