Prompt gamma tests of LaBr3:Ce and BGO detectors for detection of hydrogen, carbon and oxygen in bulk samples

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.…”

“…From the ratio of measured count rate and calculated activity, the photopeak efficiency was derived (Menge et al, 2007). Previously, the PE of the 76 mm  76 mm LaBr 3 :Ce and LaCl 3 :Ce detectors were reported to be 0.191 (Naqvi et al, 2012a) and 0.16 (Naqvi et al, 2012b), respectively.…”

“…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.…”

“…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).…”