Analytical error bars and RSD for neutron multiplicity counting

Comparison Of Neutron Coincidence And Multiplicity Counting Techniques For Safeguards

Neutron counters have been used by safeguard inspectors worldwide for over 20 years to accurately perform Non-Destructive Assays of pure samples of plutonium and uranium. These systems rely on the neutron coincidence counting technique to separate time-correlated fission neutrons from random, uncorrelated neutrons to determine the fissile mass. Impure samples such as mixed-oxide (MOX) scrap mat...

AZ Comparison of Deadtime Correction Factors for Passive Neutron Multiplicity Counting of Correlated and Non - Correlated Neutron Sources - 9298

Traditional deadtime correction methods for Passive Neutron Multiplicity Counting (PNMC) have been found to be potentially accuracy limiting at high average (or sustained) count rates and in the case where highly correlated rates occur over a short coincidence gate width (high instantaneous rates associated with high multiplicity bursts). It is costly to retrofit new hardware to existing assay ...

Error - Bars for Belief Net

Practical analytical backscatter error bars for elastic one-component lidar inversion algorithm.

We present an analytical formulation to compute the total-backscatter range-dependent error bars from the well-known Klett's elastic-lidar inversion algorithm. A combined error-propagation and statistical formulation approach is used to assess inversion errors in response to the following error sources: observation noise (i.e., signal-to-noise ratio) in the reception channel, the user's uncerta...

Counting Multiplicity over Infinite Alphabets

In the theory of automata over infinite alphabets, a central difficulty is that of finding a suitable compromise between expressiveness and algorithmic complexity. We propose an automaton model where we count the multiplicity of data values on an input word. This is particularly useful when such languages represent behaviour of systems with unboundedly many processes, where system states carry ...