Neutron Multiplicity: LANL W Covariance Matrix for Curve Fitting
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
In neutron multiplicity counting one may fit a curve by minimizing an objective function, χ$$2\atop{n}$$. The objective function includes the inverse of an n by n matrix of covariances, W. The inverse of the W matrix has a closed form solution. In addition W-1 is a tri-diagonal matrix. The closed form and tridiagonal nature allows for a simpler expression of the objective function χ$$2\atop{n}$$. Minimization of this simpler expression will provide the optimal parameters for the fitted curve.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1335589
- Report Number(s):
- LA-UR-16-29269; TRN: US1701379
- Country of Publication:
- United States
- Language:
- English
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