SAS2H Generated Isotopic Concentrations For B&W 15X15 PWR Assembly (SCPB:N/A) Page: 4 of 1,252
This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided to Digital Library by the UNT Libraries Government Documents Department.
The following text was automatically extracted from the image on this page using optical character recognition software:
Waste Package Development
Title: SAS2H Generated Isotopic Concentrations for B&W 15x15 PWR Assembly
Document Identifier: BBA000000-01717-0200-00012 REV 01 Page 4 of 25
This analysis is prepared by the Mined Geologic Disposal System (MGDS) Waste Package
I Development Department (WPDD) to provide pressurized water reactor (PWR) isotopic
composition data as a function of time for use in criticality analyses. The objectives of this
evaluation are to generate burnup and decay dependant isotopic inventories and to provide these
inventories in a form which can easily be utilized in subsequent criticality calculations.
2. Quality Assurance
The work performed for this analysis is covered by a Waste Package Development (WPD) QAP-
2-0 work control Activity Evaluation entitled "Perform Criticality, Thermal, Structural, and
Shielding Analyses" (Ref. 5.1). The QAP-2-0 evaluation determined that such activities are
subject to Quality Assurance Requirements and Description (QARD) (Ref. 5.2) controls.
Applicable procedural controls are listed in the activity evaluation. The waste package is on the
Q-List (Ref. 5.3) by direct inclusion by the Department of Energy (DOE), as an item important to
safety and waste isolation; because of the direct inclusion of the waste package on the Q-List, a
QAP-2-3 evaluation is not required to be conducted.
The work reported in this document is part of the neutronic analysis for the preliminary design;
thus, design inputs include unqualified data and unconfirmed assumptions. These design inputs
will require subsequent qualification (or superseding inputs) as the waste package design
proceeds. This document will not directly support any construction, fabrication, or procurement
activity and, therefore, does not require initiation of a TBV (to be verified) number for tracking
purposes. However, use of any data or output from this analysis for input into documents
supporting procurement, fabrication, or construction is required to be controlled as TBV in
accordance with appropriate procedures.
The SAS2H sequence in SCALE 4.2 (Ref. 5.4) is used to calculate the isotopic composition, as a
function of time, for the PWR criticality design basis fuel assembly. The prime module of this
sequence is the ORIGEN-S code. This code does a point depletion of a selected fuel type with
user specified irradiation conditions. At the completion of the depletion calculation, decay of the
irradiated fuel with user specified time intervals is computed.
4. Design Inputs
The design inputs identified in this document are for preliminary design and shall be treated as
I unqualified data; the design inputs will require subsequent qualification (or superseding inputs)
as the waste package design proceeds. This document will not support any construction,
fabrication, or procurement activity and therefore is not required to be procedurally controlled as
Here’s what’s next.
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
Davis, J.W. SAS2H Generated Isotopic Concentrations For B&W 15X15 PWR Assembly (SCPB:N/A), report, August 29, 1996; Las Vegas, Nevada. (digital.library.unt.edu/ark:/67531/metadc874540/m1/4/: accessed September 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.