Characterisation and optimisation of the new Prompt Gamma-ray Activation Analysis (PGAA) facility at FRM II

Canella, Lea; Kudějová, Petra; Schulze, Ralf; Türler, Andreas; Jolie, Jan (2011). Characterisation and optimisation of the new Prompt Gamma-ray Activation Analysis (PGAA) facility at FRM II. Nuclear instruments & methods in physics research. Section A - accelerators, spectrometers, detectors and associated equipment, 636(1), pp. 108-113. Amsterdam: North-Holland 10.1016/j.nima.2011.01.126

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At the research reactor Forschungs-Neutronenquelle Heinz Maier-Leibnitz (FRM II) a new Prompt Gamma-ray Activation Analysis (PGAA) facility was installed. The instrument was originally built and operating at the spallation source at the Paul Scherrer Institute in Switzerland. After a careful re-design in 2004–2006, the new PGAA instrument was ready for operation at FRM II. In this paper the main characteristics and the current operation conditions of the facility are described. The neutron flux at the sample position can reach up 6.07×1010 [cm−2 s−1], thus the optimisation of some parameters, e.g. the beam background, was necessary in order to achieve a satisfactory analytical sensitivity for routine measurements. Once the optimal conditions were reached, detection limits and sensitivities for some elements, like for example H, B, C, Si, or Pb, were calculated and compared with other PGAA facilities. A standard reference material was also measured in order to show the reliability of the analysis under different conditions at this instrument.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Türler, Andreas

ISSN:

0168-9002

Publisher:

North-Holland

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:27

Last Modified:

17 Mar 2015 21:10

Publisher DOI:

10.1016/j.nima.2011.01.126

Web of Science ID:

000289180300013

URI:

https://boris.unibe.ch/id/eprint/9786 (FactScience: 215567)

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