Segmented detector for recoil neutrons in the p(γ, n)π+ reaction

E Korkmaz,G.V O'Rielly,D.A Hutcheon,Gary J Feldman,D L Jordan,N.R Kolb,R.E Pywell,G.A Retzlaff,B.D Sawatzky,D.M Skopik,Johannes M Vogt,E Cairns,U Giesen,L Holm,A.K Opper,F.M Rozon,J Soukup

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment（1999）

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Abstract

A segmented neutron detector has been constructed and used for recoil neutron (6–13MeV) measurements of the reaction γp→nπ+ very close to threshold. BC-505 liquid scintillator was used to allow pulse shape discrimination between neutrons and photons. A measurement of the absolute efficiency of the detector was performed using stopped pions in the reaction π−p→nγ. Results of the efficiency calibration are compared to a Monte Carlo simulation.

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Key words

25.40-h,28.20.cz,29.30.Hs,29.40.Mc

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