National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

DE2001777661

Publication Date	2001
Personal Author	Oh, S. Y.
Page Count	63
Abstract	The SUGGEL computer code has been developed to suggest a value for the orbital angular momentum of a neutron resonance that is consistent with the magnitude of its neutron width. The suggestion is based on the probability that a resonance having a certain value of g(Gamma)(sub n) is an l-wave resonance. The probability is calculated by using Bayes theorem on the conditional probability. The probability density functions (pdf) of g(Gamma)(sub n) for up to d-wave (l=2) have been derived from the (chi)(sup 2) distribution of Porter and Thomas. The pdf take two possible channel spins into account. This code is a tool which evaluators will use to construct resonance parameters and help to assign resonance spin. The use of this tool is expected to reduce time and effort in the evaluation procedure, since the number of repeated runs of the fitting code (e.g., SAMMY) may be reduced.
Keywords	Computer codes S codes Neutrons Orbital angular momentum Probability Resonance Spin
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Oak Ridge National Lab., TN.; Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200125
Contract Number	AC05-96OR22464

Suggel: a program suggesting the orbital angular momentum of a neutron resonance from the magnitude of its neutron width.

Suggel: a program suggesting the orbital angular momentum of a neutron resonance from the magnitude of its neutron width.
DE2001777661

Publication Date	2001
Personal Author	Oh, S. Y.
Page Count	63
Abstract	The SUGGEL computer code has been developed to suggest a value for the orbital angular momentum of a neutron resonance that is consistent with the magnitude of its neutron width. The suggestion is based on the probability that a resonance having a certain value of g(Gamma)(sub n) is an l-wave resonance. The probability is calculated by using Bayes theorem on the conditional probability. The probability density functions (pdf) of g(Gamma)(sub n) for up to d-wave (l=2) have been derived from the (chi)(sup 2) distribution of Porter and Thomas. The pdf take two possible channel spins into account. This code is a tool which evaluators will use to construct resonance parameters and help to assign resonance spin. The use of this tool is expected to reduce time and effort in the evaluation procedure, since the number of repeated runs of the fitting code (e.g., SAMMY) may be reduced.
Keywords	Computer codes S codes Neutrons Orbital angular momentum Probability Resonance Spin
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Oak Ridge National Lab., TN.; Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200125
Contract Number	AC05-96OR22464