January 2011

Conference Paper

Covariance Generation Using CONRAD and SAMMY Computer Codes

By:
Leal, Luiz C; Derrien, Herve ; De Saint Jean, C; Noguere, G; Ruggieri, J M
Publication Date:
January 25, 2011
Conference Name:
Wonder 2009 - 2nd International Workshop on Nuclear Data Evaluation for Reactor Applications
Conference Location:
Cadarache, France

Abstract

Covariance generation in the resolved resonance region can be generated using the computer codes CONRAD and SAMMY. These codes use formalisms derived from the R-matrix methodology together with the generalized least squares technique to obtain resonance parameter. In addition, resonance parameter covariance is also obtained. Results of covariance calculations for a simple case of the s-wave resonance parameters of 48Ti in the energy region 10-5 eV to 300 keV are compared. The retroactive approach included in CONRAD and SAMMY was used.

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