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Title: Imaging and characterizing the waste materials inside an underground storage tank using seismic normal modes. 1998 annual progress report

Abstract

'This work is directed toward finding a way to estimate the properties of wastes in tanks on the Hanford Reservation. Data acquisition work (Turpening et al., 1995) has shown that acoustic measurements can be made inside a Hanford tank. Although that data was collected in a cross-well geometry, other data acquisition methods are now of interest. In particular, it would be very useful if an estimate of the properties of the wastes could be made by lowering a single string of hydrophones into the one liquid observation well (LOW) that exists in every tank while activating a seismic source on the surface outside the tank. Such an endeavor requires an understanding of the normal modes of oscillation of a Hanford tank when it contains various layers of wastes. The objective of this study to gain that understanding. With advent of the cone penetrometer it is now possible to conduct acoustic cross-well measurements in a Hanford tank even though each tank has only one LOW. This in turn makes the study of normal modes even more important since these modes of oscillation constitute a major portion (along with tube waves) of the background noise in any cross-well data set. Knowing wheremore » the normal modes exist in the frequency domain, for example, will allow one to plan a data acquisition program that might avoid the especially strong modes.'« less

Authors:
Publication Date:
Research Org.:
Massachusetts Inst. of Tech., Cambridge, MA (US)
Sponsoring Org.:
USDOE Office of Environmental Management (EM), Office of Science and Risk Policy
OSTI Identifier:
13561
Report Number(s):
EMSP-55141-98
ON: DE00013561
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
44; 05; Progress Report; Images; Underground; High-Level Radioactive Wastes; Radioactive Materials; PROGRESS REPORT; IMAGES; UNDERGROUND; HIGH-LEVEL RADIOACTIVE WASTES; RADIOACTIVE MATERIALS

Citation Formats

Toksoez, M.N. Imaging and characterizing the waste materials inside an underground storage tank using seismic normal modes. 1998 annual progress report. United States: N. p., 1998. Web. doi:10.2172/13561.
Toksoez, M.N. Imaging and characterizing the waste materials inside an underground storage tank using seismic normal modes. 1998 annual progress report. United States. doi:10.2172/13561.
Toksoez, M.N. Mon . "Imaging and characterizing the waste materials inside an underground storage tank using seismic normal modes. 1998 annual progress report". United States. doi:10.2172/13561. https://www.osti.gov/servlets/purl/13561.
@article{osti_13561,
title = {Imaging and characterizing the waste materials inside an underground storage tank using seismic normal modes. 1998 annual progress report},
author = {Toksoez, M.N.},
abstractNote = {'This work is directed toward finding a way to estimate the properties of wastes in tanks on the Hanford Reservation. Data acquisition work (Turpening et al., 1995) has shown that acoustic measurements can be made inside a Hanford tank. Although that data was collected in a cross-well geometry, other data acquisition methods are now of interest. In particular, it would be very useful if an estimate of the properties of the wastes could be made by lowering a single string of hydrophones into the one liquid observation well (LOW) that exists in every tank while activating a seismic source on the surface outside the tank. Such an endeavor requires an understanding of the normal modes of oscillation of a Hanford tank when it contains various layers of wastes. The objective of this study to gain that understanding. With advent of the cone penetrometer it is now possible to conduct acoustic cross-well measurements in a Hanford tank even though each tank has only one LOW. This in turn makes the study of normal modes even more important since these modes of oscillation constitute a major portion (along with tube waves) of the background noise in any cross-well data set. Knowing where the normal modes exist in the frequency domain, for example, will allow one to plan a data acquisition program that might avoid the especially strong modes.'},
doi = {10.2172/13561},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jun 01 00:00:00 EDT 1998},
month = {Mon Jun 01 00:00:00 EDT 1998}
}

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