RAFT: a computer program for fault tree risk calculations. [In FORTRAN for CDC Cyber 74-18]

Thumbnail image of item number 1 in: 'RAFT: a computer program for fault tree risk calculations. [In FORTRAN for CDC Cyber 74-18]'.
Thumbnail image of item number 2 in: 'RAFT: a computer program for fault tree risk calculations. [In FORTRAN for CDC Cyber 74-18]'.
Thumbnail image of item number 3 in: 'RAFT: a computer program for fault tree risk calculations. [In FORTRAN for CDC Cyber 74-18]'.
Thumbnail image of item number 4 in: 'RAFT: a computer program for fault tree risk calculations. [In FORTRAN for CDC Cyber 74-18]'.
Showing 1-4 of 80 pages in this report.

PDF Version Also Available for Download.

Description

A description and user instructions are presented for RAFT, a FORTRAN computer code for calculation of a risk measure for fault tree cut sets. RAFT calculates release quantities and a risk measure based on the product of probability and release quantity for cut sets of fault trees modeling the accidental release of radioactive material from a nuclear fuel cycle facility. Cut sets and their probabilities are supplied as input to RAFT from an external fault tree analysis code. Using the total inventory available of radioactive material, along with release fractions for each event in a cut set, the release terms … continued below

Physical Description

67 pages

Creation Information

Seybold, G.D. November 1, 1977.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 70 times. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Author

Publisher

  • Pacific Northwest Laboratory
    Publisher Info: Battelle Pacific Northwest Labs., Richland, Wash. (USA)
    Place of Publication: Richland, Washington

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

About | Browse this Partner

Contact Us

Corrections Questions

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

A description and user instructions are presented for RAFT, a FORTRAN computer code for calculation of a risk measure for fault tree cut sets. RAFT calculates release quantities and a risk measure based on the product of probability and release quantity for cut sets of fault trees modeling the accidental release of radioactive material from a nuclear fuel cycle facility. Cut sets and their probabilities are supplied as input to RAFT from an external fault tree analysis code. Using the total inventory available of radioactive material, along with release fractions for each event in a cut set, the release terms are calculated for each cut set. Each release term is multiplied by the cut set probability to yield the cut set risk measure. RAFT orders the dominant cut sets on the risk measure. The total risk measure of processed cut sets and their fractional contributions are supplied as output. Input options are available to eliminate redundant cut sets, apply threshold values on cut set probability and risk, and control the total number of cut sets output. Hash addressing is used to remove redundant cut sets from the analysis. Computer hardware and software restrictions are given along with a sample problem and cross-reference table of the code. Except for the use of file management utilities, RAFT is written exclusively in FORTRAN language and is operational on a Control Data, CYBER 74-18--series computer system. 4 figures.

Physical Description

67 pages

Notes

Dep. NTIS, MF A01.

Source

  • Other Information: Portions of document are illegible

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

About | Browse this Collection

What responsibilities do I have when using this report?

Digital Files

When

Dates and time periods associated with this report.

Creation Date

  • November 1, 1977

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

Description Last Updated

  • March 3, 2021, 11:21 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 70
More Statistics

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

Thumbnail image of item number 1 in: 'RAFT: a computer program for fault tree risk calculations. [In FORTRAN for CDC Cyber 74-18]'.
Thumbnail image of item number 2 in: 'RAFT: a computer program for fault tree risk calculations. [In FORTRAN for CDC Cyber 74-18]'.
Thumbnail image of item number 3 in: 'RAFT: a computer program for fault tree risk calculations. [In FORTRAN for CDC Cyber 74-18]'.
Thumbnail image of item number 4 in: 'RAFT: a computer program for fault tree risk calculations. [In FORTRAN for CDC Cyber 74-18]'.

PDF Version Also Available for Download.

Citations, Rights, Re-Use

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Links for Robots

Helpful links in machine-readable formats.

Archival Resource Key (ARK)

International Image Interoperability Framework (IIIF)

Metadata Formats

Images

URLs

Stats

Seybold, G.D. RAFT: a computer program for fault tree risk calculations. [In FORTRAN for CDC Cyber 74-18], report, November 1, 1977; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc1069641/: accessed June 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

Back to Top of Screen