Production of Extruded Fine Scintillator Strips

Abstract

Fine scintillator strips with 1 cm widths and 3 mm thicknesses have been produced with an extrusion technique. Each strip has a 1-mm hole along the strip for a wavelength-shifter fiber. The technique has several advantages in comparison with the casting method. The strip's light yield shows a sufficient number of photoelectrons, indicating that its quality is comparable to that of a strip produced with the casting method. The strip was exposed to a harsh radiation environment. We discuss the results of irradiation and the effects of annealing.