Report of Investigations 9361: Direct Tomographic Reconstruction and Application to Mining

Details

• Journal Article:
  Denver, CO: U.S. Department of the Interior, Bureau of Mines, RI 9361
• Personal Author:
  Dennen, R. S. ; Stroud, William P.
• Description:
  In this U.S. Bureau of Mines report, the conditions required for the direct reconstruction of a tomogram from observed line integrals are examined. Because of the limited access to the working faces in coal mines, the special case of access to only two opposite faces is emphasized. Classical matrix methods were used for small-dimensional (2 by 2, 3 by 3, and 4 by 4) applications to determine the limitations and the requirements for a solution. The results for large (n by n) grids were then inferred and generalized from those of the smaller grids and matrices. Limited-access tomography is found to be appropriate for in-seam hazard detection from seismic and microwave data, but it is shown that additional data must be added to obtain a direct solution. [Description provided by NIOSH]
• Subjects:
  Mining Occupational Health Safety
• Keywords:
  Microwaves-; Seismic-prospecting; Matrices-Mathematics; Numerical-analysis; Computer-programs; Image-enhancement; Grids-Coordinates; Hazards; Coal-mines; Tomography; Exploration
• Source:
  Denver, CO: U.S. Department of the Interior, Bureau of Mines, RI 9361, 1991 Jan; :1-17
• Series:
  NIOSH Numbered Publications   ; Mining Publications  
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  Colorado ; OSHA Region 8
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DRC - Denver Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  23 pdf pages
• NIOSHTIC Number:
  nn:10009155
• NTIS Accession Number:
  PB91-230342
• Federal Fiscal Year:
  1991
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7b18b3a4d0ea143408fe5c5fbe6030a1ffe11d877259cdbe499c8399567993933c1bb62655af8d9911694c72a6a3a18985f27d1b930e6914158fca2864c8fd8b
• Download URL:
  https://stacks.cdc.gov/view/cdc/10097/cdc_10097_DS1.pdf
• File Type:
  [PDF - 1.04 MB ]