[{"id":1,"text":"e-  6044 MeV","data":{"start":[200.0, 300.0, 100.0],"end":[139.6, 311.2, 103.1]},"children":[],"icon":"jstree-file"}, {"id":3,"text":"proton  87 MeV","data":{"start":[200.0, 300.0, 100.0],"end":[202.0, 298.4, 98.9]},"children":[],"icon":"jstree-file"}]