[{"id":1,"text":"e-  159 MeV","data":{"start":[200.0, 300.0, 100.0],"end":[173.3, 297.6, 162.1]},"children":[],"icon":"jstree-file"}, {"id":2,"text":"proton  134 MeV","data":{"start":[200.0, 300.0, 100.0],"end":[203.8, 301.0, 102.3]},"children":[],"icon":"jstree-file"}]