Statistics to Identify and quantify Pure Radionuclides by Their Neutron Emission Patterns

PDF Version Also Available for Download.

Description

Perfect knowledge of emission time for every neutron from a radionuclide allows identification of the material and estimation of the quantity present via nondestructive assay. In practice, the authors lack this perfect knowledge. Detector efficiency is less than unity, thermalized neutron arrival is delayed randomly, and neutron showers triggered by cosmic rays in the atmosphere add noise to the process. They compare two classes of statistical estimators capable of recovering characteristic parameters for radionuclides from this imperfect information: method of moments (the current standard) and maximum likelihood, which holds the advantage as the number of parameters to be estimated simultaneously ... continued below

Physical Description

8 p.

Creation Information

Kiffe, J. & Rock, J.C. July 27, 1999.

Context

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

Who

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

Sponsor

Publisher

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.

Contact Us

What

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

Description

Perfect knowledge of emission time for every neutron from a radionuclide allows identification of the material and estimation of the quantity present via nondestructive assay. In practice, the authors lack this perfect knowledge. Detector efficiency is less than unity, thermalized neutron arrival is delayed randomly, and neutron showers triggered by cosmic rays in the atmosphere add noise to the process. They compare two classes of statistical estimators capable of recovering characteristic parameters for radionuclides from this imperfect information: method of moments (the current standard) and maximum likelihood, which holds the advantage as the number of parameters to be estimated simultaneously increases.

Physical Description

8 p.

Notes

INIS; OSTI as DE00761366

Medium: P; Size: 8 pages

Source

  • Other Information: PBD: 27 Jul 1999

Language

Item Type

Identifier

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

  • Report No.: ANRC-2000-1
  • Grant Number: FC04-95AL85832
  • DOI: 10.2172/761366 | External Link
  • Office of Scientific & Technical Information Report Number: 761366
  • Archival Resource Key: ark:/67531/metadc723517

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.

What responsibilities do I have when using this report?

When

Dates and time periods associated with this report.

Creation Date

  • July 27, 1999

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

Description Last Updated

  • April 11, 2017, 7:06 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 4

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Kiffe, J. & Rock, J.C. Statistics to Identify and quantify Pure Radionuclides by Their Neutron Emission Patterns, report, July 27, 1999; United States. (digital.library.unt.edu/ark:/67531/metadc723517/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.