International aspects of nuclear data evaluation

International cooperation in nuclear data evaluation takes place at several levels. First, there is an exchange of information among the International Atomic Energy Agency (IAEA) - coordinated network of Nuclear Reaction Data Centers. This leads to important underpinnings for evaluated neutron reaction data through the availability of a computerized index to the bibliography of neutron data and a computerized file of experimental data. The result of the US effort to supply evaluated data for basic and applied research is the Evaluated Nuclear Data File (ENDF/B) produced by the Cross Section Evaluation Working Group. There are similar efforts in Western Europe, the Joint Evaluation File (JEF) and the European Fusion file (EFF); Japan, the Japanese Evaluated Nuclear Data File (JENDL); the Peoples Republic of China, the Chinese Nuclear Data Library; and the USSR, the BROND Library. In 1989, cooperation was begun among member states of the Organization for Economic Cooperation and Development for limited exchanges of evaluations and discussions. Since 1975 there has been an on-going effort under the auspices of the IAEA to evaluate measured nuclear structure and radioactive decay parameters because of their importance to basic and applied research.