Replacement of Bonner spheres with polyethylene cylinders for the unfolding of an 241 Am–Be neutron energy spectrum

Ghal-Eh, Nima; Kalaei, M.; Mohammadi, Ali; Vega‐Carrillo, Héctor René

doi:10.1016/j.apradiso.2017.07.043

Cited by 14 publications

(1 citation statement)

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“…The need for the characterization of INSs is essential and plays an important role in the shielding design and determination of their potential uses. Different techniques are used for neutron spectrum characterization such as Bonner Sphere Spectrometer [5][6][7][8], and foil activation technique [9][10][11][12][13][14][15][16]. There are several advantages of using foil activation technique in neutron field characterization, measurements and mapping due to their small size, insensitivity to gamma radiation, low cost and their ability to tolerate different conditions of measurements [17].…”

Section: Introductionmentioning

confidence: 99%

Characterization of 241am-Be Neutron Source Using Threshold Foil Activation Technique

Kotb

Tohamy

Solieman

et al. 2019

Al-Azhar Bulletin of Science

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The aim of the study is to characterize 241 Am-Be isotopic neutron source with 5 Ci activity and nominal neutron yield 1.1×10 7 n/s. The emitted neutrons were measured employing threshold multi-foil activation technique using the following reactionsAl(n,α). The threshold reactions were selected based on their half-lives, adequate threshold energy and crosssection. The reaction rate of each sample foil is measured by detecting the gamma ray spectra produced as a result of reaction products decay. A hyper pure germanium detector (HPGe) is used for gamma-ray spectrum measurements. The obtained spectra were analyzed using Genie2000 software and the associated system absolute efficiency was calculated using Efftran software. Obtained reaction rates were compared with available published data.

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