60 likes | 208 Vues
A new detection concept for measuring (n, g ) cross sections with improved sensitivity and resolution. C. Domingo-Pardo, C. Guerrero, J.L. Taín . ( everybody is welcome to join ).
E N D
A new detection concept formeasuring (n, g) crosssectionswithimprovedsensitivity and resolution C. Domingo-Pardo, C. Guerrero, J.L. Taín. (everybodyiswelcometojoin)
A new detection concept formeasuring (n, g) crosssectionswithimprovedsensitivity and resolution • Motivation : the204Tl(n,g) case • Origin of backgroundwith C6D6TEDs • AnalternativeapproachforTEDswithimprovedpeak-to-background ratio • Preliminarysimulations • Conclusions & Outlook
Motivation: measurements in largebackgroundconditions weaklevels (of interest) “contaminant” resonances Background level (couldbehigher at EAR2) • Themeasurement of smallsamples, lowCSsorweakresonancesischallengedbythepeak/background ratio, whichdependsbothonthe experimental conditions and onthedetectionsystemused.
A new detection concept formeasuring (n, g) crosssectionswithimprovedsensitivity and resolution • Motivation : the204Tl(n,g) case • Origin of backgroundwith C6D6TEDs • AnalternativeapproachforTEDswithimprovedpeak-to-background ratio • Preliminarysimulations • Conclusions & Outlook
neutron g-ray Origin of backgroundusingconventional C6D6TEDs P/B • Neutronsensitivity (PMT) neutrons 200 m TOF • Backgroundradiation. (n,g) • In-beam gamma-raysbkg. • Peak/Bkg Ratio = 1/5 = 0.2
A new detection concept formeasuring (n, g) crosssectionswithimprovedsensitivity and resolution • Motivation : the204Tl(n,g) case • Origin of backgroundwith C6D6TEDs • AnalternativeapproachforTEDswithimprovedpeak-to-background ratio • Preliminarysimulations • Conclusions & Outlook