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U.S. Department of Energy
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ACCURATE NUCLEAR FUEL BURNUP ANALYSES. First Quarterly Report December 1961-February 1962

Technical Report ·
OSTI ID:4758184
S> Activities in a program to develop mass spectrometric techniques for use in reactor fuel burnup analysis are reported. The program emphasis is on measurement of nonradioactive refractory fission products that can be related to burnup. A controlled irradiation program is being initiated to prepare foils of U/sup 235/, Pu/sup 239/, and U/sup 233/ for use in development of stable fission product methods and measurement of the relative fission yield of these isotopes. Isotopic dilution tracers, chosen on the basis of low occurrence in fission, are being procured. Work on evaluation of radiation hazards in the mass spectrometric laboratory is progressing. In work on the mass spectrometry of stable isotopes, Nd sensitivities of 50 to 100 mu g were found to be required for the vibrating reed detector, but 1 nanogram sensitivity can be obtained on the electron multiplier detector. Data are included on fission-product radioisotopes, apparent fission yield, and specific activities. (J.R.D.)
Research Organization:
General Electric Co. Vallecitos Atomic Lab., San Jose, Calif.
NSA Number:
NSA-16-032538
OSTI ID:
4758184
Report Number(s):
GEAP-4053-1
Country of Publication:
United States
Language:
English