Analysis of carbon in sediments using fast neutron activation analysis (FNAA)

Vinković, Andrija; Obhođaš, Jasmina; Sudac, Davorin; Nađ, Karlo; Valković, V.

doi:10.1007/s11368-019-02485-2

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Nuclear and Isotopic Analytical Techniques In Sediment Analysis1

Introduction1

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2020

2024

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Cited by 3 publications

(2 citation statements)

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“…Historical trends in sea primary production and carbonate precipitation have been analysed by Vinković et al (2020) by measurement of carbon in undisturbed sediment cores by Fast Neutron Activation Analysis (FNAA). This approach might replace Loss-on Ignition (LOI) as a conventional method for carbon analysis.…”

Section: Nuclear and Isotopic Analytical Techniques In Sediment Analysismentioning

confidence: 99%

Sediment as a dynamic natural resource—from catchment to open sea

et al. 2020

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Section: Nuclear and Isotopic Analytical Techniques In Sediment Analysismentioning

confidence: 99%

Sediment as a dynamic natural resource—from catchment to open sea

et al. 2020

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“…Within the materials elemental characterization and security frameworks, two interesting techniques relying on fast neutrons are FNAA and pulsed FNRR. FNAA [39][40][41] usually exploits fast neutrons from fusion reactions, mainly at 14-MeV energy. They are obtained with relatively compact D-T generators providing 10 7 -10 8 n/s.…”

Section: Introductionmentioning

confidence: 99%

Laser-Driven Neutron Generation with Near-Critical Targets and Application to Materials Characterization

2023

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Laser-driven neutrons arouse outstanding interest because of their promising uses in several fields, from basic science to materials inspection. Many experiments achieved neutron yields [10 8 − 10 10 n/(sr s)] suitable for applications. These results were obtained by exploiting high-energy (approximately 10-100 J) lasers working at low repetition rates. Instead, adopting advanced target configurations like near-critical double-layer targets (DLTs) and compact, commercial lasers was slightly considered. Here, a theoretical study is performed to address neutron generation with commercial (40-400 TW, 1-15 J) systems and DLTs. We investigate proton acceleration and interaction with various materials to induce (p, n) reactions. DLTs allow achieving 1-2 orders of magnitude larger neutron yields and maximum energies 3 times higher than with single-layer targets. Then, the feasibility of two materials characterization techniques, namely fast neutron activation analysis and pulsed fast neutron resonance radiography, is assessed. The results indicate that they can be performed with commercial lasers and DLTs.

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