Author/Authors :
Marrs، نويسنده , , R.E. and Norman، نويسنده , , E.B. and Burke، نويسنده , , J.T. and Macri، نويسنده , , R.A. and Shugart، نويسنده , , H.A. and Browne، نويسنده , , E. and Smith، نويسنده , , A.R.، نويسنده ,
Abstract :
The beta-delayed gamma-ray spectra from the fission of 235U, 238U, and 239Pu by thermal and near-14-MeV neutrons have been measured for delay times ranging from 1 min to 14 h. Spectra at all delay times contain sets of prominent gamma-ray lines with intensity ratios that identify the fissile material and distinguish between fission induced by low-energy or high-energy neutrons.