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@INPROCEEDINGS{Mauerhofer:1027078,
      author       = {Mauerhofer, Eric and Ophoven, Niklas and Ilic, Zeljko and
                      Randriamalala, Tsitohaina H. and Vezhlev, Egor and
                      Meleshenkovskii, Iaroslav and Stieghorst, Christian and
                      Révay, Zsolt and Jolie, Jan and Strub, Erik},
      title        = {{F}ast {N}eutron-induced {G}amma-ray {S}pectrometry
                      ({F}a{NG}a{S})},
      reportid     = {FZJ-2024-03630},
      year         = {2024},
      abstract     = {Prompt Gamma Neutron Activation Analysis (PGNAA) based on
                      cold or thermal neutron captureis a powerful technique for
                      non-destructive elemental analysis of small and thin
                      samples.However, due to limited penetration and attenuation
                      effects, PGNAA is not suited for a preciseinvestigation of
                      large objects. The feasibility of Prompt Gamma Analysis
                      based on InelasticNeutron Scattering (PGAINS) to determine
                      the elemental composition of large samples was
                      alreadydemonstrated several decades ago [1]. The FaNGaS
                      (Fast Neutron-induced Gamma-raySpectrometry) instrument,
                      installed at Heinz Maier-Leibnitz Zentrum (MLZ) in 2014,
                      advancesthis non-destructive analytical technique and makes
                      it available for a broad community of industryand research
                      [2-8]. Using the intense fission neutron beam delivered by
                      the research reactorFRM II (Forschungs-Neutronenquelle Heinz
                      Maier-Leibnitz) to investigate fast-neutroninduced prompt
                      gamma-ray emission, it offers new possibilities for the
                      chemical analysis oflarge or small samples as a
                      complementary method to conventional thermal- or
                      cold-neutronbased PGNAA. The predominant reaction channel of
                      fast neutrons at FaNGaS is the (n,n’γ)inelastic
                      scattering reaction, currently with only one existing
                      database: the “Atlas of Gammaraysfrom the Inelastic
                      Scattering of Reactor Fast Neutrons”, published in 1978 by
                      Demidov etal. [9]. This data compilation is valuable and a
                      relational database has been recently developedbased on this
                      Atlas [10]. However, it was yet never validated and previous
                      measurements withFaNGaS show the need for a critical and
                      meticulous validation [3-6,8]. Apart from building upa
                      comprehensive catalogue of (n,n’γ) reactions another main
                      objective is a continuous optimizationof the instrument to
                      improve the analytical sensitivity.In this talk the
                      experimental set-upand technical specifications of FaNGaS
                      will be given. Relative intensities and partial
                      gammarayproduction cross sections of fast-neutron-induced
                      prompt gamma rays derived from themeasurement of various
                      elements will be presented along with literature
                      comparisons.References1. Schrader CD, Stinner RJ (1961). J
                      Geophys Res 66:1951–1956.2. Randriamalala TH et al.
                      (2016). Nucl Instrum Methods A 806:370–377.3. Ilic Z et
                      al. (2020). J Radioanal Nucl Chem 325:641–645.4.
                      Mauerhofer E et al. (2021). J Radioanal Nucl Chem
                      331:535–546.5. Mauerhofer E et al. (2022. J Radioanal Nucl
                      Chem 331:3987–4000.6. Ophoven N et al. (2022). J Radioanal
                      Nucl Chem 331:5729–5740.7. Bouat S et al. (2021).
                      Nondestruct Test Evaluation 37:1–13.8. Ophoven N et al.
                      (2023). J Radioanal Nucl Chem (under review)9. Demidov A et
                      al. (1978). Atomizdat, Moscow10. Hurst AM et al. (2021).
                      Nucl Instrum Meth A 995:165095},
      month         = {May},
      date          = {2024-05-05},
      organization  = {International Conference on Modern
                       Trends in Activation Analysis, MERCURE
                       BUDA CASTLE HILL BUDAPEST (Hungary), 5
                       May 2024 - 10 May 2024},
      subtyp        = {Invited},
      cin          = {JCNS-2 / JCNS-HBS / JARA-FIT / JCNS-4 / JCNS-ESS},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)JCNS-HBS-20180709
                      / $I:(DE-82)080009_20140620$ / I:(DE-Juel1)JCNS-4-20201012 /
                      I:(DE-Juel1)JCNS-ESS-20170404},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (FZJ) (POF4-6G4)},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G4},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/1027078},
}