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Title: Method for detecting and correcting for isotope burn-in during long-term neutron dosimetry exposure

Abstract

A method is described for detecting and correcting for isotope burn-in during-long term neutron dosimetry exposure. In one embodiment, duplicate pairs of solid state track recorder fissionable deposits are used, including a first, fissionable deposit of lower mass to quantify the number of fissions occuring during the exposure, and a second deposit of higher mass to quantify the number of atoms of for instance .sup.239 Pu by alpha counting. In a second embodiment, only one solid state track recorder fissionable deposit is used and the resulting higher track densities are counted with a scanning electron microscope. This method is also applicable to other burn-in interferences, e.g., .sup.233 U in .sup.232 Th or .sup.238 Pu in .sup.237 Np.

Inventors:
 [1]
  1. (Monroeville, PA)
Issue Date:
Research Org.:
WESTINGHOUSE HANFORD CO
OSTI Identifier:
866614
Patent Number(s):
4749866
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
DOE Contract Number:  
AC06-76FF02170
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; detecting; correcting; isotope; burn-in; long-term; neutron; dosimetry; exposure; described; during-long; term; embodiment; duplicate; pairs; solid; track; recorder; fissionable; deposits; including; deposit; mass; quantify; fissions; occuring; atoms; instance; 239; alpha; counting; resulting; densities; counted; scanning; electron; microscope; applicable; interferences; 233; 232; 238; 237; np; scanning electron; track recorder; electron microscope; neutron dosimetry; isotope burn-in; fissionable deposits; fissionable deposit; term neutron; dosimetry exposure; /250/376/

Citation Formats

Ruddy, Francis H. Method for detecting and correcting for isotope burn-in during long-term neutron dosimetry exposure. United States: N. p., 1988. Web.
Ruddy, Francis H. Method for detecting and correcting for isotope burn-in during long-term neutron dosimetry exposure. United States.
Ruddy, Francis H. Fri . "Method for detecting and correcting for isotope burn-in during long-term neutron dosimetry exposure". United States. https://www.osti.gov/servlets/purl/866614.
@article{osti_866614,
title = {Method for detecting and correcting for isotope burn-in during long-term neutron dosimetry exposure},
author = {Ruddy, Francis H.},
abstractNote = {A method is described for detecting and correcting for isotope burn-in during-long term neutron dosimetry exposure. In one embodiment, duplicate pairs of solid state track recorder fissionable deposits are used, including a first, fissionable deposit of lower mass to quantify the number of fissions occuring during the exposure, and a second deposit of higher mass to quantify the number of atoms of for instance .sup.239 Pu by alpha counting. In a second embodiment, only one solid state track recorder fissionable deposit is used and the resulting higher track densities are counted with a scanning electron microscope. This method is also applicable to other burn-in interferences, e.g., .sup.233 U in .sup.232 Th or .sup.238 Pu in .sup.237 Np.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

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