High-level neutron-coincidence-counter (HLNCC) implementation: assay of the plutonium content of mixed-oxide fuel assemblies

Foley, J.E.; Bosler, G.E.

doi:10.2172/5262977

Cited by 1 publication

(3 citation statements)

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“…The ratio of Eqs. (17) and (28) compares the uniform case to the irregular case and is independent of detection efficiency and fission rate; this is called the cycle correction Different assays may use different numbers of shuffles. A correction must be made before these counts can be compared, as with a single calibration curve.…”

Section: B Adjusting Counts For Irregular Timesmentioning

confidence: 99%

“…Equation 17can be evaluated using nominal values and setting ef=l. [Equation (28) will be used with actual times and with ef = 1 also; the correction factor in Eq. (29) shows that the actual value of ef is immaterial.…”

Section: A Assay Calculationmentioning

confidence: 99%

“…Some items called P y will also be used in evaluating Eq. (28) and they are also set to zero at this time.…”

Section: D'=0 (40)mentioning

confidence: 99%

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Shuffler instruments for the nondestructive assay of fissile materials

Rinard¹

1991

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atomic weight of fission target material assay result [g, g/L] bias corrected assay value estimate of assay result atomic weight of isotope i in the fission target material interpolated assay result coefficient for isotope i for assay of a mixture of isotopes estimated background counts during an assay = Bf,(TJt b) background counts during a count time fy background count rate from delayed-neutron detector [s" 1 ] parameters in the bias correction function background count rate from flux monitor [s~l] total counts (signal plus background) counts in the delayed-neutron detectors during an assay counts in the flux monitor detectors during an assay counts from the delayed-neutron detectors during shuffle k counts in the flux monitor detectors during shuffle k 252 Cf decay correction factor xi SHUFFLER INSTRUMENTS FOR THE NONDESTRUCTIVE ASSAY OF FISSILE MATERIALS

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Section: B Adjusting Counts For Irregular Timesmentioning

confidence: 99%

Section: A Assay Calculationmentioning

confidence: 99%