SENSIT: a cross-section and design sensitivity and uncertainty analysis code. [In FORTRAN for CDC-7600, IBM 360]
SENSIT computes the sensitivity and uncertainty of a calculated integral response (such as a dose rate) due to input cross sections and their uncertainties. Sensitivity profiles are computed for neutron and gamma-ray reaction cross sections of standard multigroup cross section sets and for secondary energy distributions (SEDs) of multigroup scattering matrices. In the design sensitivity mode, SENSIT computes changes in an integral response due to design changes and gives the appropriate sensitivity coefficients. Cross section uncertainty analyses are performed for three types of input data uncertainties: cross-section covariance matrices for pairs of multigroup reaction cross sections, spectral shape uncertainty parameters for secondary energy distributions (integral SED uncertainties), and covariance matrices for energy-dependent response functions. For all three types of data uncertainties SENSIT computes the resulting variance and estimated standard deviation in an integral response of interest, on the basis of generalized perturbation theory. SENSIT attempts to be more comprehensive than earlier sensitivity analysis codes, such as SWANLAKE.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 7093344
- Report Number(s):
- LA-UR-80-2868; CONF-8010113-3; TRN: 80-019051
- Resource Relation:
- Conference: Specialists meeting on nuclear data and benchmarks for reactor shielding, Paris, France, 27 Oct 1980
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COMPUTER CODES
S CODES
DOSE RATES
SENSITIVITY ANALYSIS
TRANSPORT THEORY
CDC COMPUTERS
CROSS SECTIONS
DATA COVARIANCES
FORTRAN
IBM COMPUTERS
MULTIGROUP THEORY
NEUTRON REACTIONS
PHOTONUCLEAR REACTIONS
RESPONSE FUNCTIONS
BARYON REACTIONS
COMPUTERS
FUNCTIONS
HADRON REACTIONS
NEUTRON TRANSPORT THEORY
NUCLEAR REACTIONS
NUCLEON REACTIONS
PROGRAMMING LANGUAGES
654001* - Radiation & Shielding Physics- Radiation Physics
Shielding Calculations & Experiments