AN ENERGY MEASUREMENT OF PuF$sub 4$ NEUTRONS AND THE NEUTRON DOSE RATE FROM PuF$sub 4$ PROCESSING EQUIPMENT
By use of the multisphere neutron spectrometer, the neutrons emitted from a sample of PuF4 were analyzed for average neutron energy. The results indicated an average neutron energy of 1.25 plus or minus 0.25 Mev. The room background had a fast neutron energy of 1.00 plus or minus 0.25 Mev, with a reasonably large contribution from scattered neutrons. A 110 gram sample of PuF/ sub 4/ gave a dose rate reading of about 9 mrem/hr at a distance of 30 cm, which corresponds to a neutron yield of 8.0 x 10/sup 5/ n/sec. The room background was about 0.5 mrem/hr. Neutrons originating in the PuF/sub 4/ processing equipment were measured with the 10 inch sphere neutron survey instrument. Comparable readings were obtained with the converted PeeWee neutron survey instrument by using a correction factor of 30, or a fast neutron energy of 0.5 or 0.4 Mev. Either of these factors enabled a monitor to obtain a more accurate dose rate with the PeeWee than was previously possible. (auth)
- Research Organization:
- Los Alamos Scientific Lab., N.Mex.
- DOE Contract Number:
- W-7405-ENG-36
- NSA Number:
- NSA-16-022967
- OSTI ID:
- 4823452
- Report Number(s):
- LAMS-2692
- Country of Publication:
- United States
- Language:
- English
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