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U.S. Department of Energy
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Production of long-lived activities in fusion materials

Conference ·
OSTI ID:5824657

Neutron cross sections have been measured near 14 MeV for reactions leading to long-lived radioisotopes in fusion materials. Results are summarized for various reactions leading to /sup 26/Al (720,000 y), /sup 55/Fe (2.73 y), /sup 63/Ni (100 y), /sup 59/Ni (76,000 y), and /sup 94/Nb (20,300 y). New data are presented for the production of /sup 91/Nb (680 y) from /sup 92/Mo, and from /sup 93/Mo (3500 y) and /sup 93m/Nb (13.6 y) for /sup 94/Mo. Our measurements suggest that the half-life of /sup 91/Nb may be shorter (350 y) than previous estimates. Measured cross sections are used to predict the production of these isotopes for various fusion reactor designs. 20 refs., 4 tabs.

Research Organization:
Argonne National Lab., IL (USA)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
5824657
Report Number(s):
CONF-871036-15; ON: DE88002963
Country of Publication:
United States
Language:
English