Fluorine determination in biological and environmental samples with INAA using fast neutrons from a p(19 MeV) + Be neutron generator

0519086 - ÚJF 2020 RIV NL eng J - Journal Article
Kučera, Jan - Štefánik, Milan - Veselka, Petr
Fluorine determination in biological and environmental samples with INAA using fast neutrons from a p(19 MeV) + Be neutron generator.
Journal of Radioanalytical and Nuclear Chemistry. Roč. 322, č. 3 (2019), s. 1517-1523. ISSN 0236-5731. E-ISSN 1588-2780
R&D Projects: GA MŠMT LM2015056
Institutional support: RVO:61389005
Keywords : Fluorine determination * instrumental neutron activation analysis * fast neutrons * accelerator neutron source * biological and environmental samples
OECD category: Nuclear related engineering
Impact factor: 1.137, year: 2019
Method of publishing: Limited access
https://doi.org/10.1007/s10967-019-06735-y

We present a new activation method based on the F-19(n,2n)F-18 reaction using fast neutrons produced by a p(19 MeV) + Be accelerator-driven fast neutron source providing continuous neutron spectrum up to 17 MeV with a neutron fluence rate of approximately 9 x 10(10) cm(-2) s(-1) at a 12-mu A proton beam current. We describe elimination of interferences in measurement of F-18, a pure positron emitter with T-1/2 = 1.83 h. We present results of fluorine determination for several biological and environmental reference materials with the new procedure and compare them with those achieved by other methods in terms of limits of detection, accuracy and precision, where available.
Permanent Link: http://hdl.handle.net/11104/0304106