Advanced Large Area Plastic Scintillator Project (ALPS): Final Report

Abstract

in PVT (in any but the thickest monolithic slabs), but it does encourage investigation of alternative spectroscopic techniques that seek to extract maximal source identification information from the shape of the Compton continuum. Sensor applications that require identification of, or discrimination among, a limited set of gamma-ray emissions from a few candidate sources of interest, as measured under relatively well-understood background conditions, might well benefit from a spectroscopic characterization technique that exploits a relatively high-resolution measurement of the shape of the Compton edge. Although a thorough investigation of Compton-continuum spectroscopy techniques fell somewhat outside the ALPS project's scope, the project has helped to quantify the extent to which reasonably practical enhancements in the light-collection efficiency of large-area PVT sensors can be expected to improve their measurement of the Compton continuum.

Feasibility study for radionuclide identification using multi-array plastic scintillator and energy weighted algorithm of radiation portal monitors: a Monte Carlo study

“…Several approaches have been presented to improve the energy resolution of PVT; increasing the number of PMTs to remove the position dependency and increasing the number of plastic scintillators for the light-collection efficiency [7,8]. However, due to the broad energy spectrum of plastic scintillators, simply increasing the number of plastic or PMT was not a clear solution for these studies to improve the energy resolution for radionuclide identification using the Compton maximum from the energy spectra.…”

Energy calibration for plastic scintillation detectors based on Compton scatterings of gamma rays

“…They have many advantages such as fast response, low production cost, the availability to form various shapes and to add dopants. Besides, plastic scintillations are the only practical choice if largevolume solid scintillations are needed [1][2][3]. Unfortunately, the pulse-height spectrum obtained from plastic scintillation detectors usually miss full-energy peak.…”

Geant4 Comparative Study of Affecting Different Parameters on Optical Photons Related to the Plastic Scintillation Detector

“…spectroscopy, no sensitivity to moisture, less temperature dependency, low repair cost, and easy construction of large area detector (for instance in the case of whole body contamination monitoring) [3,4].…”