WalletCraft: A New Database of Ground State and Long-lived Isomeric Properties

The Nuclear Wallet Cards booklet is a long-standing product of the National Nuclear Data Center that provides data on the ground state and long-lived isomers in all experimentally observed nuclei. Data have traditionally been made available in a printed handbook, an ASCII file, and through a searchable web-based application. The Wallet Cards database has recently undergone a complete modernization resulting in a new database called WalletCraft. WalletCraft is an expansible object-oriented database including not only recommended values, but also incorporating all source measurements. Details of WalletCraft will be presented, along with opportunities for expansion of the database.