Mapping air contaminants indoors using a prototype computed tomography system

Annals of Occupational Hygiene

Volumn 40, Issue 6, 1996, Pages 675-691

  Samanta, A ^a   Todd, L A ^a  

^a UNIVERSITY OF NORTH CAROLINA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTER AIDED ANALYSIS; COMPUTER SIMULATION; COMPUTERIZED TOMOGRAPHY; ENVIRONMENTAL CHAMBERS; FOURIER TRANSFORM INFRARED SPECTROSCOPY; SULFUR COMPOUNDS;

AIR CONTAMINANT MAPS; SULFUR HEXAFLUORIDE;

INDOOR AIR POLLUTION;

SULFUR HEXAFLUORIDE;

AIR SAMPLING; ARTICLE; COMPUTER ASSISTED TOMOGRAPHY; ELECTRON CAPTURE DETECTION; GAS CHROMATOGRAPHY; INFRARED SPECTROSCOPY; OCCUPATIONAL EXPOSURE; OCCUPATIONAL HEALTH; PRIORITY JOURNAL;

AIR POLLUTANTS; AIR POLLUTANTS, OCCUPATIONAL; AIR POLLUTION, INDOOR; ENVIRONMENTAL MONITORING; OCCUPATIONAL HEALTH; SPECTROSCOPY, FOURIER TRANSFORM INFRARED; TOMOGRAPHY;

EID: 0030560930     PISSN: 00034878     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0003-4878(96)00013-0     Document Type: Article

References (16)

1. Bhattacharyya, R. (1995) Two-dimensional mapping of air contaminants using an FTIR/computed tomography system: simulation studies. M.S. Thesis, University of North Carolina, Chapel Hill.
2. Bracewell, R. N. (1956) Strip integration in radio astronomy. Aust. J. Phys. 9, 198-217.
3. Brooks, R. A. and Di Chiro, G. (1976) Principles of computer assisted tomography in radiographic and radioisotope imaging. Phys. Med. Biol. 21, 689-732.
4. Cormak, A. M. (1963) Representation of a function by its line integrals, with some radiological applications. J. appl. Phys. 34, 2722-2727.
5. Cormak, A. M. (1964) Representation of a function by its line integrals, with some radiological applications. II. J. appl. Phys. 35, 2908-2913.
6. DeRoisier, D. J. and Klug, A. (1968) Reconstruction of three-dimensional structures from electron micrographs. Nature 217, 130-134.
7. Gordon, R., Bender, R. and Herman, G. T. (1970) Algebraic reconstruction techniques (ART) for three dimensional electron microscopy and X-ray photography. J. Theor. Biol. 29, 471-481.
8. Hounsfield, G. N. (1973) Computerized transverse axial scanning (tomography). Part I. Description of a system. Br. J. Radiol. 46, 1016-1022.
9. Kuhl, D. E. and Edwards, R. (1963) Image separation radioisotope scanning. Radiology 80, 653-661.
10. Samanta, A. and Todd, L. A. (1994) Mapping chemical concentrations indoors using open-path FTIR spectroscopy and computed tomography: chamber studies. In Proceedings of the Optical Remote Sensing of Environment and Process Monitoring, pp. 187-191. SPIE, McLean, Virginia.
11. Todd, L. A. and Leith, D. (1990) Remote sensing and computed tomography in industrial hygiene. Am. ind. Hyg. Ass. J. 51, 224-233.
12. Todd, L. and Ramachandran, G. (1994a) Evaluation of algorithms for tomographic reconstructions of chemical concentrations in indoor air. Am. ind. Hyg. Ass. J. 55, 403-417.
13. Todd, L. and Ramachandran, G. (1994b) Evaluation of optical source-detector configuration for tomographic reconstruction of chemical concentrations in indoor air. Am. ind. Hyg. Ass. J. 55, 1133-1143.
14. Tsui, B. M. W., Zhao, X. D., Frey, E. C. and Gullberg, G. T. (1991) Comparison between ML-EM and WLS-CG algorithms for SPECT image reconstruction. IEEE Trans. Nucl. Sci. 38, 1766-1772.
15. Wolfe, D. C. and Byer, R. L. (1982) Model studies of laser absorption computed tomography for remote air pollution measurement. Appl. Optics 21, 1165-1177.
16. Yost, M. G., Gadgil, A. J., Drescher, A. C., Zhou, Y., Simonds, M. A., Levine, S. P., Nazaroff, W. W. and Saisan, P. A. (1994) Imaging indoor tracer-gas concentrations with computed tomography: experimental results with a remote sensing FTIR system. Am. ind. Hyg. Ass. J. 55, 395-402.