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.
Measurement and simulation of neutron detection efficiency in lead-scintillating fiber calorimeters / M., Anelli; S., Bertolucci; Bini, Cesare; P., Branchini; C., Curceanu; DE ZORZI, Guido; DI DOMENICO, Antonio; B., Di Micco; A., Ferrari; Fiore, Salvatore; Gauzzi, Paolo; S., Giovannella; F., Happacher; M., Iliescu; M., Martini; S., Miscetti; F., Nguyen; A., Passeri; A., Prokofiev; B., Sciascia; F., Sirghi. - In: NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS. - ISSN 0920-5632. - 197:1(2009), pp. 353-357. (Intervento presentato al convegno 11th Topical Seminar on Innovative Particle and Radiation Detectors tenutosi a Siena, ITALY nel OCT 01, 2008) [10.1016/j.nuclphysbps.2009.10.102].
Measurement and simulation of neutron detection efficiency in lead-scintillating fiber calorimeters
BINI, Cesare;DE ZORZI, Guido;DI DOMENICO, Antonio;FIORE, SALVATORE;GAUZZI, Paolo;
2009
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
