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Title: Basic radiological studies contamination control experiments

Abstract

This report describes the results of experiments relating to contamination control performed in support of the Environmental Restoration Programs Retrieval Project. During the years 1950 to 1970 waste contaminated with plutonium and other transuranic radionuclides was disposed of in shallow land-filled pits and trenches at the Idaho National Engineering Laboratory. Due to potential for migration of radionuclides to an existing aquifer the feasibility of retrieving and repackaging the waste for placement in a final repository is being examined as part of a retrieval project. Contamination control experiments were conducted to determine expected respirable and nonrespirable plutonium contaminated dust fractions and the effectiveness of various dust suppression techniques. Three soil types were tested to determine respirable fractions: Rocky Flats Plant generic soil, Radioactive Waste Management Complex generic soil, and a 1:1 blend of the two soil types. Overall, the average respirable fraction of airborne dust was 5.4% by weight. Three contamination control techniques were studied: soil fixative sprays, misting agents, and dust suppression agents. All of the tested agents proved to be effective in reducing dust in the air. Details of product performance and recommended usage are discussed.

Authors:
; ;
Publication Date:
Research Org.:
EG and G Idaho, Inc., Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10171840
Report Number(s):
EGG-WM-8724
ON: DE92019479
DOE Contract Number:
AC07-76ID01570
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Sep 1989
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 54 ENVIRONMENTAL SCIENCES; DUSTS; CONTROL; ALPHA-BEARING WASTES; RADIOACTIVE WASTE MANAGEMENT; SOILS; REMEDIAL ACTION; SAMPLING; WASTE RETRIEVAL; IDAHO NATIONAL ENGINEERING LABORATORY; 054000; 052000; 540250; HEALTH AND SAFETY; WASTE MANAGEMENT; SITE RESOURCE AND USE STUDIES

Citation Formats

Duce, S.W., Winberg, M.R., and Freeman, A.L. Basic radiological studies contamination control experiments. United States: N. p., 1989. Web. doi:10.2172/10171840.
Duce, S.W., Winberg, M.R., & Freeman, A.L. Basic radiological studies contamination control experiments. United States. doi:10.2172/10171840.
Duce, S.W., Winberg, M.R., and Freeman, A.L. 1989. "Basic radiological studies contamination control experiments". United States. doi:10.2172/10171840. https://www.osti.gov/servlets/purl/10171840.
@article{osti_10171840,
title = {Basic radiological studies contamination control experiments},
author = {Duce, S.W. and Winberg, M.R. and Freeman, A.L.},
abstractNote = {This report describes the results of experiments relating to contamination control performed in support of the Environmental Restoration Programs Retrieval Project. During the years 1950 to 1970 waste contaminated with plutonium and other transuranic radionuclides was disposed of in shallow land-filled pits and trenches at the Idaho National Engineering Laboratory. Due to potential for migration of radionuclides to an existing aquifer the feasibility of retrieving and repackaging the waste for placement in a final repository is being examined as part of a retrieval project. Contamination control experiments were conducted to determine expected respirable and nonrespirable plutonium contaminated dust fractions and the effectiveness of various dust suppression techniques. Three soil types were tested to determine respirable fractions: Rocky Flats Plant generic soil, Radioactive Waste Management Complex generic soil, and a 1:1 blend of the two soil types. Overall, the average respirable fraction of airborne dust was 5.4% by weight. Three contamination control techniques were studied: soil fixative sprays, misting agents, and dust suppression agents. All of the tested agents proved to be effective in reducing dust in the air. Details of product performance and recommended usage are discussed.},
doi = {10.2172/10171840},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1989,
month = 9
}

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  • This report describes the results of experiments relating to contamination control performed in support of the Environmental Restoration Programs Retrieval Project. During the years 1950 to 1970 waste contaminated with plutonium and other transuranic radionuclides was disposed of in shallow land-filled pits and trenches at the Idaho National Engineering Laboratory. Due to potential for migration of radionuclides to an existing aquifer the feasibility of retrieving and repackaging the waste for placement in a final repository is being examined as part of a retrieval project. Contamination control experiments were conducted to determine expected respirable and nonrespirable plutonium contaminated dust fractions andmore » the effectiveness of various dust suppression techniques. Three soil types were tested to determine respirable fractions: Rocky Flats Plant generic soil, Radioactive Waste Management Complex generic soil, and a 1:1 blend of the two soil types. Overall, the average respirable fraction of airborne dust was 5.4% by weight. Three contamination control techniques were studied: soil fixative sprays, misting agents, and dust suppression agents. All of the tested agents proved to be effective in reducing dust in the air. Details of product performance and recommended usage are discussed.« less
  • The results of exponential experiments performed under the Spectral Shift Control Reactor (SSCR) Basic Physics Program are summarized. The material buckling and cadmium ratio of U/sup 235/ were measured at room temperature in rod lattices moderated by D/sub 2/O-H/sub 2/O mixtures in which the non-moderator-to- moderator volume ratio was approximately 1.0. The two types of fuel studied were 93%-enriched aluminum tubes and 4%-enriched UO/sub 2/ swaged in 0.476-inch OD stainless-steel tubcs. The results are shown in the following tabulation, where the measured cadmium ratio of thorium in the first lattice is 1.14 plus or minus 0.02. Also given is designmore » information on the Lynchburg Source Reactor (LSR), which was assembled and operated at 1000 watts to provide neutrons for these experiments. (auth)« less
  • Spectral Shift Control Reactor Basic Physics Program are summarized. Nine major critical assemblies of rod lattices were studied in moderator mixtures of light and heavy water ranging from zero to 81.2 mole% D/sub 2/O. In some assemblies, the moderator was poisoned with boric acid. The non-moderator-to- moderator volume ratio in all lattices was approximately 1.0. The fuel in most lattices was 4%enriched UO/sub 2/ swaged in stainless steel, although two experiments were performed with 93%-enriched U0/sub 2/ ThO/sub 2/ pellets in aluminum tubes. One assembly was zone-loaded radially and contained both types of fuel. The critical mass, D/sub 2/O concentration,more » boron concentration, buckling, thermal disadvanthge factor, and cadmium ratio of U/sup 235/ were measured in each assembly. In most assemblies, the cadmium ratio of U/sup 238/ or Th/sup 232/ was measared, and in five assembli es, the epithermal neutron spectrum was derived from the measurements taken of the resonance activity of detector foils. In special experiments at high D/sub 2/ concentrations, the perturbations by moderator gaps and control blades were studied, and the reflector savings versus reflector thickness was measured. The flux distribution in the zoneloaded assembly was also mapped. The measured lattice parameters are sumraarized. (auth)« less
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  • BATTERY.BAS is a BASIC program that automatically executes battery-cycling experiments, takes voltage-current data, monitors open-circuit voltage, and some combinations of these tests. Since the program is written in interpretive BASIC, the user has the flexibility to modify some experimental parameters while the experiment is in progress. Data are saved in various sequential ASCII files that can be accessed by any program that can read ASCII files. SlideWrite Plus (Advanced Graphics Software, Inc.), for example, is used for graphical presentation of data. Some utility programs are included to manipulate data collected by the program. Typical manipulations are separation of individual cyclesmore » from multiple-cycle data and conversion of voltage-time data to voltage-charge data.« less