The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 10, 1998

Filed:

Apr. 24, 1997
Applicant:
Inventors:

Paul A Fletcher, Richardson, TX (US);

Brian E Shannon, McKinney, TX (US);

Assignee:

Atlantic Richfield Company, Los Angeles, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B09C / ; G01V / ; G21F / ;
U.S. Cl.
CPC ...
405128 ; 250255 ; 588 17 ; 588261 ;
Abstract

A method for reducing the concentration of radioactive material in a contaminated area by removing contaminated soil from the contaminated area; determining a field survey specific activity concentration representative of the remaining soil in the contaminated area; comparing the field survey specific activity concentration with a field validation data set to determine the total concentration of contaminating radioactive material in the contaminated area and removing additional quantities of contaminated soil from the contaminated area as required. The soil area may alternatively be blended with clean soil to reduce the concentration of radioactive material in the soil or a combination of blending and removal may be used. A method for estimating the total concentration of radioactive material in a soil sample is provided.


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