Indian Journal of Energy

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On the Nature of Laser Induced Fluorescence Spectrum of a Bore-Hole Sample of Coal


Affiliations
1 Department of Chemistry, Dibru College, Dibrugarh-786003, Assam, India
2 Department of Physics, Dibru College, Dibrugarh-786003, Assam, India
3 Centre for Laser and Optical Science, New Uchamati, Doom Dooma-786151, Assam, India
 

The present work describes the fluorescence spectrum of a sample of coal recovered from a depth of about 2km from the surface as a bore hole sample by Oil India Limited at Duliajan .The fluorescence spectrum was excited with the help of a 25mW green diode pumped solid state laser (532nm).The characteristic feature of the spectrum is a diffuse band in the region 6500-5900A

Keywords

Laser Induced Fluorescence, 25mW Green Diode, Bore-hole Sample of Coal
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Notifications

  • Meyers R A (1982) Coal structure, Academic Press, New York.

  • Baruah R.K, Bhattacharyya G.C, McFarlane U and Baruah G.D. (1995) Radial distribution (x- ray) study of heat treated Assam coal, Indian J.Pure & Appl Phys, 34(7), 500-501.

  • Saikia B.K, Baruah R.K and Baruah G.D (2007) Laser induced fluorescence spectra of some high sulphur Assam Coals, India, Energy and Fuels, 21(6), 3744-3745

  • Crelling J.C, Bensley D.F(1995), Recent advances in separating and characterizing single coal macerals: In, Pajares, J.A. and Tascon, J.M.D., eds. Coal Science-proceedings of the Eighth International Conference on Coal Science, Elsevier, Amsterdam, 1, 235-238.


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  • On the Nature of Laser Induced Fluorescence Spectrum of a Bore-Hole Sample of Coal

Abstract Views: 485  |  PDF Views: 291

Authors

Chittaranjan Hazarika
Department of Chemistry, Dibru College, Dibrugarh-786003, Assam, India
R. Mahanta
Department of Physics, Dibru College, Dibrugarh-786003, Assam, India
G. D. Baruah
Centre for Laser and Optical Science, New Uchamati, Doom Dooma-786151, Assam, India

Abstract


The present work describes the fluorescence spectrum of a sample of coal recovered from a depth of about 2km from the surface as a bore hole sample by Oil India Limited at Duliajan .The fluorescence spectrum was excited with the help of a 25mW green diode pumped solid state laser (532nm).The characteristic feature of the spectrum is a diffuse band in the region 6500-5900A

Keywords


Laser Induced Fluorescence, 25mW Green Diode, Bore-hole Sample of Coal

References