New experimental validation of the pulse height weighting technique for capture cross-section measurements

U Abbondanno,G Aerts,H Alvarez,S Andriamonje,A Angelopoulos,P Assimakopoulos,C.O Bacri,G Badurek,P Baumann,F Bečvář,H Beer,J Benlliure,B Berthier,E Berthomieux,S Boffi,C Borcea,E Boscolo-Marchi,N Bustreo,P Calviño,D Cano-Ott,R Capote,P Carlson,P Cennini,V Chepel,E Chiaveri,C Coceva,N Colonna,G Cortes,D Cortina,A Couture,J Cox,S Dababneh,M Dahlfors,S David,R Dolfini,C Domingo-Pardo,I Duran,C Eleftheriadis,M Embid-Segura,L Ferrant,A Ferrari,L Ferreira-Lourenco,R Ferreira-Marques,H Frais-Koelbl,W.I Furman,Y Giomataris,I.F Goncalves,E Gonzalez-Romero,A Goverdovski,F Gramegna,E Griesmayer,F Gunsing,R Haight,M Heil,A Herrera-Martinez, K.G Ioannides,N Janeva,E Jericha, F Käppeler,Y Kadi,D Karamanis,A Kelic,V Ketlerov,G Kitis,P.E Koehler,V Konovalov,E Kossionides,V Lacoste,H Leeb,A Lindote,M.I Lopes,M Lozano,S Lukic,S Markov,S Marrone, J Martinez-Val,P Mastinu,A Mengoni,P.M Milazzo,E Minguez,A Molina-Coballes,C Moreau,F Neves,H Oberhummer,S O'Brien,J Pancin,T Papaevangelou,C Paradela,A Pavlik,P Pavlopoulos,A Perez-Parra,J.M Perlado,L Perrot,V Peskov,R Plag,A Plompen,A Plukis,A Poch,A Policarpo,C Pretel,J.M Quesada,M Radici,S Raman,W Rapp,T Rauscher,R Reifarth,F Rejmund,M Rosetti, C Rubbia,G Rudolf,P Rullhusen,J Salgado,E Savvidis,J.C Soares,C Stephan,G Tagliente,J.L Tain,C Tapia,L Tassan-Got,L.M.N Tavora,R Terlizzi,M Terrani,N Tsangas,G Vannini,P Vaz,A Ventura,D Villamarin-Fernandez,M Vincente-Vincente,V Vlachoudis,R Vlastou,F Voss,H Wendler,M Wiescher,K Wisshak,L Zanini

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment（2004）

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摘要

The accuracy of the pulse height weighting technique for the determination of neutron capture cross-sections is investigated. The technique is applied to measurements performed with C6D6 liquid scintillation detectors of two different types using capture samples of various dimensions. The data for well-known (n,γ) resonances are analyzed using weighting functions obtained from Monte Carlo simulations of the experimental set-up. Several causes of systematic deviation are identified and their effect is quantified. In all the cases measured the reaction yield agrees with the standard value within 2%.

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关键词

25.40.Lw,25.40.Ny,29.40.Mc,07.05.Tp

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