Studies on mass energy-absorption coefficients and effective atomic energy-absorption cross sections for carbohydrates. (April 2015)

• Record Type: Journal Article
• Authors: Ladhaf, Bibifatima M.; Pawar, Pravina P.
• Is Part Of: Radiation physics and chemistry. Volume 109(2015:Apr.)
• Page Start: 89
• Page End: 94
• Publication Date: 2015-04
• Subjects: Mass attenuation coefficients -- Total attenuation cross-section -- Molar extinction coefficients -- Mass-energy absorption coefficients -- Effective (average) atomic energy-absorption cross section; Radiation chemistry -- Periodicals; Radiometry -- Periodicals; Radiation -- Periodicals; Chimie sous rayonnement -- Périodiques; 539.2
• DOI: 10.1016/j.radphyschem.2014.12.015
• Languages: English
• ISSNs: 0969-806X

Abstract

Abstract: We measured here the mass attenuation coefficients ( μ / ρ ) of carbohydrates, Esculine (C15 H16 O9 ), Sucrose (C12 H22 O11 ), Sorbitol (C6 H14 O6 ), d -Galactose (C6 H12 O6 ), Inositol (C6 H12 O6 ), d -Xylose (C5 H10 O5 ) covering the energy range from 122 keV up to 1330 keV photon energies by using gamma ray transmission method in a narrow beam good geometry set-up. The gamma-rays were detected using NaI(Tl) scintillation detection system with a resolution of 8.2% at 662 keV. The attenuation coefficient data were then used to obtain the total attenuation cross-section ( σ tot ), molar extinction coefficients ( ε ), mass-energy absorption coefficients ( μ en / ρ ) and effective (average) atomic energy-absorption cross section ( σ a, en) of the compounds. These values are found to be in good agreement with the theoretical values calculated based on XCOM data. Highlights: Compute the values of mass attenuation coefficients ( μ / ρ ) of some carbohydrates. The values of ( μ en / ρ ) i.e. mass energy-absorption coefficient are calculated. Effective atomic energy-absorption cross sections ( σ a, en) . Comparison of all ( μ / ρ ), ( μ en / ρ ), ( σ a, en ) values with XCOM program. The measured data for carbohydrates are useful in radiation dosimetry and other fields.