RT Journal Article
ID 7f42329e1abd239a
A1 Ryzhikov, V. D.
A1 Grynyov, B. V.
A1 Onishchenko, G. M. 
A1 Piven, L. A. 
A1 Lysetska, O. K. 
A1 Nagornata, L. L. 
A1 Zenya, I. M. 
A1 Berezhnoy, A. Y. 
T1 A HIGH-EFFICIENCY METHOD OF DETECTION OF FAST NEUTRONS FOR DETECTION SYSTEMS OF FISSIONABLE RADIOACTIVE MATERIALS
JF Telecommunications and Radio Engineering
JO TRE
YR 2012
FD 2012-12-12
VO 71
IS 18
SP 1665
OP 1686
K1 detection efficiency
K1 fast neutrons
K1 inelastic scattering
K1 inspection systems
K1 fissionable
K1 heavy oxide scintillators
K1 neutron detector
AB Comparative measurements and detection efficiency analysis were carried out for fast neutrons from <sup>239</sup>Pu-Be source in a broad energy range of <i>E<sub>n</sub></i> &sim; 0.1 &#247; 10 <i>MeV</i> using oxide scintillators Bi<sub<4</sub>Ge<sub>3</sub>O<sub>12</sub>,   Gd<sub>2</sub>SiO<sub>5</sub>, CdWO<sub>4</sub>, ZnWO<sub>4</sub>, ZnSe(Te,O) as well as NaI(TI), Csl(TI) and <sup>6</sup>LiI(Eu). The experimentally obtained fast neutron detection efficiency by heavy inorganic (oxide) scintillators (<i>Z</i> &ge; 50) reaches &sim; 40-50&#37;. One of the most probable mechanisms ensuring such high efficiency of fast neutron by oxide scintillators is the inelastic scattering reaction (<i>n,n'&#947;</i>) . It is concluded that heavy oxide scintillators, which at the same time are efficient gamma-detector, allow creation of a highly efficient gamma-neutron detector, which ensures high efficiency of detection of fissionable radioactive materials./i
PB Begell House
LK https://www.dl.begellhouse.com/journals/0632a9d54950b268,48d4e5ab0b169f59,7f42329e1abd239a.html