Scintillation Strip Detector for Detection of Thermal Neutrons

摘要

A scintillation strip detector designed for precise experiments on the reflectometry of thermal neutrons is described. Test results obtained on the beam of a time-of-flight spectrometer have shown that the detector has a detection efficiency for thermal neutrons close to 100%, a lowered sensitivity to the neutron background, and a low level of intrinsic noise. The coordinate resolution of the detector can be varied in the range 1.5-0.1 mm. The strip is manufactured from a mixture of a ZnS(Ag) scintillator and a 6{sup left}LiF neutron converter.