Abstract
The average number of neutrons (ν̄) emitted per fission event in the spontaneous fission of 252Cf has been determined by separate absolute measurements of the fission rate and the neutron emission rate per mg of a solution of californium chloride. The fission rate was determined by a hitherto untried method based on fission-fission coincidences, and the neutron emission rate was determined by the well-known manganese sulphate bath technique. The measurements were carried out during the period 1968 to 1972, and several provisional values of ν̄ have been released from time to time. The results have now been subjected to a rigorous statistical treatment in which correlations were treated by covariance matrices.The value for ν̄(total) for 252Cf is (3.7509±0.0107) neutrons per fission. This value supersedes all previously released provisional values.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
