Author/Authors :
Stuhl، نويسنده , , L. and Krasznahorkay، نويسنده , , A. and Csatlَs، نويسنده , , M. and Algora، نويسنده , , A. and Gulyلs، نويسنده , , J. and Kalinka، نويسنده , , G. and Timلr، نويسنده , , J. and Kalantar-Nayestanaki، نويسنده , , N. and Rigollet، نويسنده , , Francis C. and Bagchi، نويسنده , , S. and Najafi، نويسنده , , M.A.، نويسنده ,
Abstract :
A neutron spectrometer, the European Low-Energy Neutron Spectrometer (ELENS), has been constructed to study exotic nuclei in inverse-kinematics experiments. The spectrometer, which consists of plastic scintillator bars, can be operated in the neutron energy range of 100 keV–10 MeV. The neutron energy is determined using the time-of-flight technique, while the position of the neutron detection is deduced from the time-difference information from photomultipliers attached to both ends of each bar. A novel wrapping method has been developed for the plastic scintillators. The array has a larger than 25% detection efficiency for neutrons of approximately 500 keV in kinetic energy and an angular resolution of less than 1°. Details of the design, construction and experimental tests of the spectrometer will be presented.
Keywords :
ELENS , VM2000 wrapping , Low-energy neutron spectrometer , Neutron time-of-flight measurements
