Measurement and simulation of neutron detection efficiency in lead-scintillating fiber calorimeters
2009 (English)In: Nuclear physics B, Proceedings supplements, ISSN 0920-5632, Vol. 197, no 1, 353-357 p.Article in journal (Refereed) Published
The overall detection efficiency to neutrons of a small prototype of the KLOE lead-scintillating fiber calorimeter has been measured at the neutron beam facility of The Svedberg Laboratory, TSL, Uppsala, in the kinetic energy range [5-175] MeV. The measurement of the neutron detection efficiency of a NE110 scintillator provided a reference calibration. At the lowest trigger threshold, the overall calorimeter efficiency ranges from 30% to 50%. This value largely exceeds the estimated 8-15% expected if the response were proportional only to the scintillator equivalent thickness. A detailed simulation of the calorimeter and of the TSL beam line has been performed with the FLUKA Monte Carlo code. First data-MC comparisons are encouraging and allow to disentangle a neutron halo component in the beam.
Place, publisher, year, edition, pages
2009. Vol. 197, no 1, 353-357 p.
IdentifiersURN: urn:nbn:se:uu:diva-137460DOI: 10.1016/j.nuclphysbps.2009.10.102ISI: 000276207500078OAI: oai:DiVA.org:uu-137460DiVA: diva2:399715