Author/Authors :
Rout، نويسنده , , P.C. and Chakrabarty، نويسنده , , D.R. and Datar، نويسنده , , V.M. and Kumar، نويسنده , , Suresh and Mirgule، نويسنده , , E.T. and Mitra، نويسنده , , A. and Nanal، نويسنده , , V. and Kujur، نويسنده , , R.، نويسنده ,
Abstract :
A large area plastic scintillator detector array ( ∼ 1 × 1 m 2 ) has been set up for fast neutron spectroscopy at the BARC-TIFR Pelletron laboratory, Mumbai. The energy, time and position response has been measured for electrons using radioactive sources and for monoenergetic neutrons using the 7Li ( p , n 1 ) 7 Be * ( 0.429 MeV ) reaction at proton energies between 6.3 and 19 MeV. A Monte Carlo simulation of the energy dependent efficiency of the array for neutron detection is in agreement with the 7Li ( p , n 1 ) measurements. The array has been used to measure the neutron spectrum, in the energy range of 4–12 MeV, in the reaction C 12 + Nb 93 at E ( C 12 ) = 40 MeV . This is in reasonable agreement with a statistical model calculation.
Keywords :
Plastic scintillator detector array for fast neutrons , TOF technique , n 1 ) 7 Be * ( 0.429 MeV ) at E p = 6.3 –19 , Measured neutron spectra in 7Li ( p , MeV and C 12 + Nb 93 at
