WOMAN OWNED, SMALL BUSINESS, C-CORPORATION
DUNS Number: 037362220
CAGE Code: 1WHJ9

NAICS CODES: 541330, 541611, 541690, 541712, 541990, 562910

PASCHAL SOLUTIONS, INC.

Paschal Solutions, Inc.

P.O. Box 71346

Knoxville, TN 37938

Phone: 270.705.9037

Fax: 888.533.4490

Copyright ©  Paschal Solutions, Inc

Providing Safe and Efficient Engineering Solutions

VALIDATION AND VERIFICATION OF NCS CODE PACKAGES


Nuclear Criticality Safety Analyses have become increasingly dependent on application of radiation transport codes.  The codes are used to identify conditions that ensure subcriticality, or to determine dose rates in shielding analyses for criticality accident alarm systems. Validation is the area of NCS analysis that seeks to leverage experimental benchmark data to determine the bias and uncertainty associated with results obtained from these codes. The area requires detailed understanding of nuclear physics, parametric and non-parametric statistics, and regulatory expectations. PSI has developed robust code validation packages for NRC and DOE facilities and contributed to the state of the art in this area with rigorous analyses that maximize the area of applicability that can be credited by the facility staff.  PSI staff are involved in the ANSI/ANS 8.1 and 8.24 working groups that provide the standard requirements associated with validation.