Detection efficiency of low levels of boron and cadmium with a LaBr3:Ce scintillation detector

Pulse height tests of a large diameter fast LaBr3:Ce scintillation detector

“…The intrinsic activity of the 100 mm  100 mm detector was determined using the procedure described for the smaller 76 mm  76 mm LaCl 3 :Ce (Naqvi et al, 2012a(Naqvi et al, , 2012b and LaBr 3 :Ce detectors (Naqvi et al, 2011). The activity/second was determined from the area under the 1468 keV peak of the detector as shown in Fig.…”

“…The gamma-ray tests of the large detector were performed following the method used for the smaller lanthanum-halide detectors (Naqvi et al, 2011(Naqvi et al, , 2012a(Naqvi et al, , 2012b. The tests were conducted using the PGNAA setup reported earlier (Naqvi et al, 2011(Naqvi et al, , 2012a(Naqvi et al, , 2012b.…”

“…The tests were conducted using the PGNAA setup reported earlier (Naqvi et al, 2011(Naqvi et al, , 2012a(Naqvi et al, , 2012b. The setup was modified to accommodate the large LaBr 3 :Ce detector.…”

“…The neutron shielding was made from mixture of paraffin and lithium carbonate (taken in equal weight proportions). The optimum sizes of the moderator and shielding were calculated using Monte Carlo simulations (Naqvi et al, 2011(Naqvi et al, , 2012a(Naqvi et al, , 2012b.…”

“…They have high potential for applications in studies involving pulse height spectroscopy (Camera et al, 2014;Giaz et al, 2013;Menge et al, 2007;Naqvi et al, 2011Naqvi et al, , 2012aNaqvi et al, , 2012bOwens et al, 2007) and timing analysis (Iltisa et al, 2006;Kuhn et al, 2004Kuhn et al, , 2005Kuhn et al, , 2006Surti et al, 2003). Detectors designed for pulse height spectroscopy are coupled to photomultipliers with excellent energy resolution while those designed for timing analysis have their scintillator crystals coupled to fast photomultipliers with excellent time resolution (Iltisa et al, 2006;Kuhn et al, 2005).…”