Increasing the dynamic range for the analysis of boron in PGAA

Söllradl, Stefan; Lührs, Hanna; Révay, Zsolt; Kudejova, Petra; Canella, Lea; Türler, Andreas (2013). Increasing the dynamic range for the analysis of boron in PGAA. Journal of Radioanalytical and Nuclear Chemistry, 298(3), pp. 2069-2073. Berlin: Springer Netherlands 10.1007/S10967-013-2739-9

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Prompt gamma activation analysis (PGAA) is especially sensitive for elements with high neutron-capture cross sections, like boron, which can be detected down to a level of ng/g. However, if it is a major component, the high count rate from its signal will distort the spectra, making the evaluation difficult. A lead attenuator was introduced in front of the HPGe-detector to reduce low-energy gamma radiation and specifically the boron gamma rays reaching the detector, whose thickness was found to be optimal at 10 mm. Detection efficiencies with and without the lead attenuator were compared, and it was shown that the dynamic range of the PGAA technique was significantly increased. The method was verified with the analyses of stoichiometric compounds: TiB2, NiB, PVC, Alborex, and Alborite.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Söllradl, Stefan and Türler, Andreas

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry

ISSN:

0236-5731

Publisher:

Springer Netherlands

Language:

English

Submitter:

Franziska Bornhauser-Rufer

Date Deposited:

04 Apr 2014 20:33

Last Modified:

01 Dec 2018 02:31

Publisher DOI:

10.1007/S10967-013-2739-9

BORIS DOI:

10.7892/boris.46197

URI:

https://boris.unibe.ch/id/eprint/46197

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