Coincidence-summing corrections in gamma-ray spectrometry for normalized geometries

Activation cross sections for reactions induced by 14 MeV neutrons on natural tin and enriched112Sn targets with reference to111In productionviaradioisotope generator112Sn(n, 2n)111Sn →111In

“…This detector has been calibrated at close (0.3 cm) geometry as well as at far (29 cm) source-detector distances with 2 inch multigamma source ( 109 Cd, 57 Co, 123m Te, 203 Hg, 113 Sn, 85 Sr, 137 Cs, 88 Y and 60 Co) Du Pont standard and extended sources of long-lived 133 Ba and 152 Eu. In the calculations of intensities measured with this detector at close geometry, the contribution of summing correction was included in accord with [21,22]. The detector was connected to a computerized spectrometric system.…”

Calculation of coincidence summing in gamma-ray spectrometry with the EGS5 code

“…To validate the simulation for γ-γ and γ-X coincidences, coincidence summing correction factors were derived from the mathematical expression (Morel et al, 1983). Expressions reported by Tomarchio and Rizzo (Tomarchio and Rizzo, 2011) were used for 22 Na, 24 Na, 60 Co, 88 Y, 110m Ag, and 134 Cs.…”

“…Coincidence summing correction factors can be computed by a mathematical expression (Morel et al, 1983) or Monte Carlo (MC) simulation. The mathematical expression is limited to point sources only and cannot be applied to plane and volume sources because the effect depends on each source position in the source.…”

Building-up a code for the purpose of TRUE coincidence summing correction in gamma-ray spectrometry with EGS4

“…Some specific codes were developed for coincidence summing corrections such as KORSUM at the Physikalisch-Technische Bundesanstalt (Debertin and Schotzig, 1979) and CORCO at the Laboratoire National Henri Becquerel (Morel et al, 1983). These pioneering works were followed by new developments: Monte Carlo simulation was used by Decombaz (Decombaz et al, 1992) for coincidence summing correction.…”