Low energy prompt gamma-ray tests of a large volume BGO detector

Nitrogen Detection in Bulk Samples Using a D-D Reaction-Based Portable Neutron Generator

“…Also shown in Figure 5 is single escape (SE) peak associated with hydrogen capture full energy peak at 2223 keV. Figure 5 further shows prompt gamma ray peaks at 596, 608, 868, 961, and 1472 due to thermal neutron capture in germanium in BGO detector material as was previously observed [5]. Also shown in Figure 5 are unresolved prompt gamma ray peaks from bismuth in BGO detector material and nitrogen in caffeine measured at 2.50 MeV and 2.52 MeV, respectively.…”

“…The integrated yield of 2.52 MeV prompt gamma rays peak of nitrogen as a function of nitrogen concentration is plotted in Figure 9. The solid line in Figure 9 represents the calculated yield of prompt gamma ray obtained from Monte Carlo calculations following the procedure described elsewhere [4,5,15]. There is an excellent agreement between the theoretical yield and the experimental yield of nitrogen prompt gamma ray measured from melamine, urea, caffeine and disperse orange bulk samples using a portable neutron generator based PGNAA setup utilizing a 100 mm × 100 mm (diameter × height) BGO detector.…”

“…Prompt gamma-ray neutron activation analysis (PGNAA) technique is widely used for insitu elemental analysis of bulk samples in several scientific disciplines including environmental, industrial, and health sciences [1]. Its area of application ranges from quality-control tasks in mining and environmental [2][3][4][5] and building construction industries [6] to contraband detection for homeland security in concealed containers [7][8][9][10][11]. Prompt gamma rays can be excited in samples via thermal neutron capture ( th , ) reaction and fast neutron inelastic scattering ( , ) reactions.…”

Prompt gamma-ray analysis of chlorine in superpozz cement concrete

“…Further, the setup has to be portable and has to be built either around a portable radioisotope neutron source or a portable neutron generator [14]. KFUPM has acquired a portable neutron generator model MP320 from Fisher-Thermo Company, USA [14] for the elemental analysis of bulk samples using the PGNAA technique [10]. A new portable DD neutron generator-based PGNAA setup has been designed and tested to measure the prompt gamma-ray yield from one side of the concrete structure.…”

“…The Prompt Gamma Neutron Activation (PGNAA) technique is a non-destructive technique and can be used to analyze bulk concrete samples [6][7][8][9][10]. Previously, the chloride concentration in blended cement concretes, such as FA, SF and BFS were measured utilizing the accelerator-based PGNAA setup at KFUPM [11][12][13].…”