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U.S. Department of Energy
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DEL, A Perturbation Program Written in Fortran

Technical Report ·
DOI:https://doi.org/10.2172/4613017· OSTI ID:4613017
 [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
DEL is a perturbation-theory code which determines the fractional change in keff due to a perturbation in macroscopic cross sections and/or in the buckling. It is written in FORTRAN for the IBM-704 computer with 32K core storage and at least six tape drives, including one for the FORTRAN Subroutine Library. The analysis assumes the input of the radial distributions of sources and fluxes to result from a one-dimensional diffusion-theory calculation (see Section II-A, NFLT). Preparation of the cross-section tape is described in Appendix B. The printed results include the radial distributions of Δk/k and the volumetrically-weighted quantity (Δk/k)/ΔV, together with their individual terms and the respective pass totals and grand totals thereof. The grand totals may, at the option of the user, include results from previous passes. The reference system need not be critical.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP); US Atomic Energy Commission (AEC)
DOE Contract Number:
W-31109-ENG-38
NSA Number:
NSA-20-003366
OSTI ID:
4613017
Report Number(s):
ANL-7052
Country of Publication:
United States
Language:
English