Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Absolute subcriticality measurement without calibration and detection efficiency dependence by the SVSCf source-driven noise method

Conference · · IEEE Trans. Nucl. Sci.; (United States)
OSTI ID:6135209
The SVSCf-source-driven noise analysis method determines the subcriticality of a system containing fissionable material from the ratio of cross power spectral densities between the detectors that detect particles from the fission process and between these detectors and an ionization chamber containing a spontaneously fissioning neutron source which provides neutrons to induce fission in the system. This method has two advantages: a calibration is not required and thus subcriticality can be determined from measurements only on the subcritical system of interest, and the subcriticality is independent of the type of detector or its efficiency. These properties of this technique are illustrated by measurements.
Research Organization:
Oak Ridge National Lab., Oak Ridge, TN
OSTI ID:
6135209
Report Number(s):
CONF-841007-
Conference Information:
Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-32:1
Country of Publication:
United States
Language:
English