title: Determination of europium content in Li2SiO3(Eu) by neutron activation analysis using Am-Be neutron source.
abstract: Circulardiscs of Li2SiO3doped with europium were prepared and a new activation procedure for the neutron dose estimation in a breeder blanket of fusion reactor is described. The amount of europium in the disc was determined by neutron activation analysis (NAA) using an isotopic neutron source. The average neutron absorption cross section for the reaction was calculated using neutron distribution of the Am-Be source and available neutron absorption cross section data for the151Eu(n,γ)152mEu reaction, which was used for estimation of europium in the pallet. The cross section of the elements varies with neutron energy, and the flux of the neutrons in each energy range seen by the nuclei under investigation also varies. Neutron distribution spectrum of the Am-Be source was worked out prior to NAA and the effective fractional flux for the nuclear reaction considered for the flux estimation was also determined.
authors: Product Development Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
authors: Yeshwant
authors: Y
authors: Naik
authors: Isotope Application Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
authors: Anant Shamrao
authors: AS
authors: Tapase
authors: Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
authors: Amol
authors: A
authors: Mhatre
authors: Product Development Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
authors: Chandrashekhar
authors: C
authors: Datrik
authors: Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
authors: Nilesh
authors: N
authors: Tawade
authors: Isotope Application Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
authors: Umesh
authors: U
authors: Kumar
authors: Isotope Application Division, Bhabha Atomic Research Centre, Mumbai 400085, India. Electronic address: naikhbarc@yahoo.com.
authors: Haladhara
authors: H
authors: Naik
keywords: (151)Eu(n,γ)(152m)Eu reaction; Am-Be neutron source; Li(2)SiO(3) doped with europium; Neutron activation analysis