Optimal detector geometry to maximize light output and timing characteristics of fast scintillators

1 February 1988

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science

Vol. 35 (1) , 712-716
https://doi.org/10.1109/23.12817

Abstract

A Monte Carlo computer program has been developed to test different detector geometries in an effort to determine the shape that maximizes a figure of merit based on increasing the temporal resolution while retaining high sensitivity. Detector crystals shaped as truncated cones were examined with specular scattering from the crystal-air interface. On the basis of the results, two truncated cones with 20-mm base radius, 10-mm top radius, and 20-mm height were purchased and compared to existing 20-mm*20-mm*40-mm crystals and to the results in the literature. The temporal resolution obtained with the cone system is 222 ps FWHM with an intrinsic efficiency of 24%. The experimental results confirm the accuracy and usefulness of the computer model.

Keywords

This publication has 2 references indexed in Scilit:

Characteristics of Small Barium Fluoride (BaF2) Scintillator for High Intrinsic Resolution Time-of-Flight Positron Emission Tomography
IEEE Transactions on Nuclear Science, 1984
Barium fluoride — Inorganic scintillator for subnanosecond timing
Nuclear Instruments and Methods in Physics Research, 1983