Published Date
Procedia Engineering
2015, Vol.127:665–669, doi:10.1016/j.proeng.2015.11.362
INTERNATIONAL CONFERENCE ON COMPUTATIONAL HEAT AND MASS TRANSFER (ICCHMT) - 2015
Open Access, Creative Commons license
Author
Abstract
Keywords
Wood materials
Chemical Composition ;. Partial attenuation coefficients
Total attenuation coefficient
X-com
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http://www.sciencedirect.com/science/article/pii/S1877705815037224
Procedia Engineering
2015, Vol.127:665–669, doi:10.1016/j.proeng.2015.11.362
INTERNATIONAL CONFERENCE ON COMPUTATIONAL HEAT AND MASS TRANSFER (ICCHMT) - 2015
Open Access, Creative Commons license
Author
Available online 17 December 2015.
Abstract
This paper reports on evaluation of the partial photon interaction cross sections and total mass attenuation coefficients of different wood materials including soft and hard wood materials. These values are compared with the corresponding values of shielding materials (Pb compounds and Hg). The values of interaction cross sections are computed using X-com computer data base software over the energy levels 1 KeV to 100MeV. It is observed that μ total of composite materials (wood materials) decreases sharply in the low energy region which remains constant in the medium energy region, and increases in high energy region. Attenuation coefficients of different partial interaction processes like Photo electric absorption, Coherent Scattering, Pair production are calculated and analyzed. The results suggest that the interaction processes are Z dependent.
References
- [1]
- Testing of a high –density concrete as neutron shielding material
- Nucl. Technol., Volume 168, Issue 2, 2009, p. 399
- [2]
- Hubbell JH, Photon mass attenuation coefficients and energy-absorption coefficients from 1 keV to 20 MeV (1982) Int. J. Appl.Radiat. Isot. 33, 1269.
- [3]
- Lide DR, CRC ed. Handbook of Chemistry and Physics (1996) 76th ed., Boca Raton, FL, CRC Press, p. 3,80.
- [4]
- Singh, Makhan, Mudahar, Gurmel S, Energy dependence of total photon attenuation coefficients of composite materials (1992) Appl. Radiat. Isot. 42, 907.
- [5]
- Singh, Karamjit Singh Charanjeet, Singh, Parjit S., Mudahar, Gurmel S., Effect of weight fractionof different constituent elements on total mass attenuation coefficients of biological materials (2002a).Pramana J. Phys.59.151.
- [6]
- Akkurt S, Kilincarslan C, Basyigit, The photon attenuation coefficients of barite, marble and limra. (2004) Annals of Nuclear Energy 31.577.
- [7]
- Akkurt I Akyildirim H, Mavi B Kilincarslan S, Basyigit C, Photon attenuation coefficients of concrete include barite in different rate (2010a) Ann.Nucl. Energy 37(7).910.
- [8]
- Akkurt I, Akyildirim H, Mavi B, Kilincarslan S, Basyigit C, Gamma-ray shielding properties of concrete including bariteat different energies(2010b). Prog. Nucl.Energy 52. 620.
- [9]
- Bashter I I, Calculation of radiation attenuation coefficients for shielding concretes (1997). Ann. Nucl. Energy 24. 1389.
- [10]
- Charanjeet Singh, Tejbir Singh, Ashok Kumar, Gurmel, S. Mudahar, Energy and chemical composition dependence of mass attenuation coefficients of building materials (2004). Ann. Nucl.Energy 31.1199.
- [11]
- Burmester A, Gamma radiation effects on chemical, morphological, physical and mechanical properties of pine and beech woods (1966). Material prüfung 8. 205.
- [12]
- Antoine RC, Avella T, Van Eyseren JC., Studies of wood treated by high doses of γ-radiation. (1971). IAWA Bull. 4.11.
- [13]
- Antoine RC, Van Eyseren JC, Intérêt des rayons γ dans le prιtraitment des bois en vue de leur analyse au microscope à balayage [Microscopic studies of wood after Gamma radiation] (1971). C.R. Acad. Sc. Sér. B, 272.308. .
- [14]
- Bhuiyan MTR, Hirai N, Sobue N, Effect of intermittent heat treatment on crystallinity in wood cellulose (2001). J. Wood Sci. 47.336.
- [15]
- Henryk Kasprzyk, kinga Wichlacz, Slawomir Borysiak, The effect of Gamma radiation on the supramolecular structure of pine wood cellulose in situ revealed by x-ray diffraction (2004). Electronic J. Polish Agricultural Uni.7.1.
- [16]
- Ferraz, ESB, Agular O, Gamma ray attenuation technique for determination of density and water content of wood samples (1985) IPEF, 30.9.
- [17]
- Loos WE, Gamma-ray absorption and wood moisture content and density (1961). Forest Products Journal, Madison, 11.145.
- [18]
- Parrish WB, Detecting defects in wood by the attenuation of Gamma-rays (1961). Forest Science, Washington, D.C. 7.136.
- [19]
- Loos WE, Determining moisture content and density of wood by nuclear radiation techniques (1965). Forest Products Journal, Madison, 15.102.
- [20]
- Woods FW, Gamma-ray attenuation by loblolly pine wood: An investigation of integral counting (1965). Forest Science 11.341.
- [21]
- Phillips EWJ, Methods and equipment for the specific gravity of wood (1965). IUFRU,Section 41, Melbourne, Australia.
- [22]
- Ferraz ESB. Determinação da densidade de madeiras por atenuação da radiação gamade baixa energia(1976). IPEF, Piracicaba, 12.61.
- [23]
- Shakhreet BZ, Bauk S, Tajuddin A, Shukri A, Mass attenuation coefficients of natural Rhizophora spp. wood for X-rays in the 15.77-25.27 keV range (2009). Radiat Prot Dosimetry 135.47.
- [24]
- Photon cross sections on a personal computer Internal Report
- NBSIR, Volume 87, 1987, p. 3597
- ☆Peer-review under responsibility of the organizing committee of ICCHMT – 2015.
- ⁎ Corresponding author. Tel.: +91 9701683944.
http://www.sciencedirect.com/science/article/pii/S1877705815037224
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