skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fast CsI-phoswich detector

Abstract

An improved phoswich radiation detector used pure CsI crystal and a fast plastic scintillator and a single photomultiplier tube. The plastic is arranged to receive incident radiation, and that which passed through then strikes the CsI crystal. Scintillation light from both the plastic and CsI crystal are applied to the photomultiplier tube, with the light from the plastic passing through the crystal without absorption therein. Electronics are provided for analyzing the output of the photomultiplier tube to discriminate responses due to the plastic and the CsI crystal, through short gate and long gate integration, to produce results which are indicative of the characteristics of the different types of incident radiation, even in the presence of large amounts of radiation. The phoswich detector has excellent timing resolution. The scintillators of the CsI- phoswich were chosen for their fast risetimes, of about 3 ns for NE102A, and 30 ns for the pure CsI. 5 figs.

Inventors:
Issue Date:
Research Org.:
University of Minnesota
OSTI Identifier:
228060
Patent Number(s):
5,514,870
Application Number:
PAN: 8-212,710
Assignee:
James R. Langenbrunner, Santa Fe, NM (United States)
DOE Contract Number:  
FG02-87ER40362
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 7 May 1996
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; SOLID SCINTILLATION DETECTORS; DESIGN; CESIUM IODIDES; PHOTOMULTIPLIERS; ELECTRONIC EQUIPMENT; TIMING PROPERTIES

Citation Formats

Langenbrunner, J R. Fast CsI-phoswich detector. United States: N. p., 1996. Web.
Langenbrunner, J R. Fast CsI-phoswich detector. United States.
Langenbrunner, J R. Tue . "Fast CsI-phoswich detector". United States.
@article{osti_228060,
title = {Fast CsI-phoswich detector},
author = {Langenbrunner, J R},
abstractNote = {An improved phoswich radiation detector used pure CsI crystal and a fast plastic scintillator and a single photomultiplier tube. The plastic is arranged to receive incident radiation, and that which passed through then strikes the CsI crystal. Scintillation light from both the plastic and CsI crystal are applied to the photomultiplier tube, with the light from the plastic passing through the crystal without absorption therein. Electronics are provided for analyzing the output of the photomultiplier tube to discriminate responses due to the plastic and the CsI crystal, through short gate and long gate integration, to produce results which are indicative of the characteristics of the different types of incident radiation, even in the presence of large amounts of radiation. The phoswich detector has excellent timing resolution. The scintillators of the CsI- phoswich were chosen for their fast risetimes, of about 3 ns for NE102A, and 30 ns for the pure CsI. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {5}
}