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Title: Lanthanum halide scintillators for time-of-flight 3-D pet

Abstract

A Lanthanum Halide scintillator (for example LaCl.sub.3 and LaBr.sub.3) with fast decay time and good timing resolution, as well as high light output and good energy resolution, is used in the design of a PET scanner. The PET scanner includes a cavity for accepting a patient and a plurality of PET detector modules arranged in an approximately cylindrical configuration about the cavity. Each PET detector includes a Lanthanum Halide scintillator having a plurality of Lanthanum Halide crystals, a light guide, and a plurality of photomultiplier tubes arranged respectively peripherally around the cavity. The good timing resolution enables a time-of-flight (TOF) PET scanner to be developed that exhibits a reduction in noise propagation during image reconstruction and a gain in the signal-to-noise ratio. Such a PET scanner includes a time stamp circuit that records the time of receipt of gamma rays by respective PET detectors and provides timing data outputs that are provided to a processor that, in turn, calculates time-of-flight (TOF) of gamma rays through a patient in the cavity and uses the TOF of gamma rays in the reconstruction of images of the patient.

Inventors:
 [1];  [2]
  1. Glenside, PA
  2. Philadelphia, PA
Issue Date:
Research Org.:
University of Pennsylvania (Philadelphia, PA)
Sponsoring Org.:
USDOE
OSTI Identifier:
983063
Patent Number(s):
7381958
Application Number:
10/706,799
Assignee:
The Trustees of The University of Pennsylvania (Philadelphia, PA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61B - DIAGNOSIS
DOE Contract Number:  
FG02-88ER60642
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Karp, Joel S, and Surti, Suleman. Lanthanum halide scintillators for time-of-flight 3-D pet. United States: N. p., 2008. Web.
Karp, Joel S, & Surti, Suleman. Lanthanum halide scintillators for time-of-flight 3-D pet. United States.
Karp, Joel S, and Surti, Suleman. Tue . "Lanthanum halide scintillators for time-of-flight 3-D pet". United States. https://www.osti.gov/servlets/purl/983063.
@article{osti_983063,
title = {Lanthanum halide scintillators for time-of-flight 3-D pet},
author = {Karp, Joel S and Surti, Suleman},
abstractNote = {A Lanthanum Halide scintillator (for example LaCl.sub.3 and LaBr.sub.3) with fast decay time and good timing resolution, as well as high light output and good energy resolution, is used in the design of a PET scanner. The PET scanner includes a cavity for accepting a patient and a plurality of PET detector modules arranged in an approximately cylindrical configuration about the cavity. Each PET detector includes a Lanthanum Halide scintillator having a plurality of Lanthanum Halide crystals, a light guide, and a plurality of photomultiplier tubes arranged respectively peripherally around the cavity. The good timing resolution enables a time-of-flight (TOF) PET scanner to be developed that exhibits a reduction in noise propagation during image reconstruction and a gain in the signal-to-noise ratio. Such a PET scanner includes a time stamp circuit that records the time of receipt of gamma rays by respective PET detectors and provides timing data outputs that are provided to a processor that, in turn, calculates time-of-flight (TOF) of gamma rays through a patient in the cavity and uses the TOF of gamma rays in the reconstruction of images of the patient.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {6}
}

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