No. Z A State Format Library 0001 18 Ar 50 ground ENDF-6 JENDL Photonuclear Data File 2016 (expanded) 0002 18 Ar 50 ground ENDF-6 JENDL Photonuclear Data File 2016 revision 1 0003 18 Ar 50 ground ENDF-6 JENDL-5 (decay data) 0004 18 Ar 50 ground ENDF-6 JENDL-5 (photonuclear)