title: Attenuation correction for the assay of uranium(VI) solutions in large cylindrical containers by gamma ray spectrometry.
abstract: The Hybrid Monte Carlo method developed for attenuation correction has been extended for 500 ml cylindrical geometry. The method has been experimentally validated. Absolute efficiency studies for 500 ml aqueous, air and point source has been carried out using Monte Carlo simulation. It has been observed that point source efficiency is a good estimate of 500 ml source beyond sample-to-detector distance of 15 cm. It has been found that while HMC method for attenuation correction is valid at all sample-to-detector distances and over all transmittance range, the far-field and near-field formulae available in literature are valid only over a very narrow range of sample-to-detector distance.
authors.affiliation: Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, Maharashtra, India.
authors.forename: Sabyasachi
authors.initials: S
authors.lastname: Patra
authors.forename: Chhavi
authors.initials: C
authors.lastname: Agarwal
authors.forename: M
authors.initials: M
authors.lastname: Gathibandhe
authors.forename: A
authors.initials: A
authors.lastname: Goswami
mesh_terms: D000465:Algorithms; D016477:Artifacts; D004867:Equipment Design; D019544:Equipment Failure Analysis; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012996:Solutions / Q000032:analysis / Q000737:chemistry; D013051:Spectrometry, Gamma / Q000295:instrumentation* / Q000379:methods*; D014501:Uranium / Q000032:analysis* / Q000737:chemistry*
chemical_list: D012996:Solutions; D014501:Uranium