TY - RPRT TI - A physically cryptographic warhead verification system using neutron induced nuclear resonances AU - Engel, Ezra M. AU - Danagoulian, Areg (ORCID:0000000151781108) PY - 2019 DO - 10.1038/s41467-019-12386-0 UR - https://www.osti.gov/biblio/1619721 ID - 1619721 ER -