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Analysis and Comparison of Tomographic Gamma Scanner (TGS) Architectures for Nuclear Waste Characterization Systems

Published online by Cambridge University Press:  28 March 2012

Esteban Venialgo
Affiliation:
Departamento de Instrumentación y Control, Centro Atómico Ezeiza, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina. Facultad Regional Buenos Aires, Universidad Tecnológica Nacional, Buenos Aires, Argentina.
Martín Belzunce
Affiliation:
Facultad Regional Buenos Aires, Universidad Tecnológica Nacional, Buenos Aires, Argentina.
Claudio Verrastro
Affiliation:
Departamento de Instrumentación y Control, Centro Atómico Ezeiza, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina. Facultad Regional Buenos Aires, Universidad Tecnológica Nacional, Buenos Aires, Argentina.
Lucio Martínez Garbino
Affiliation:
Departamento de Instrumentación y Control, Centro Atómico Ezeiza, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina. Facultad Regional Buenos Aires, Universidad Tecnológica Nacional, Buenos Aires, Argentina. Programa Nacional de Gestión de Residuos Radiactivos, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina.
Elías da Ponte
Affiliation:
Departamento de Instrumentación y Control, Centro Atómico Ezeiza, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina. Facultad Regional Buenos Aires, Universidad Tecnológica Nacional, Buenos Aires, Argentina.
Juan Alarcón
Affiliation:
Departamento de Instrumentación y Control, Centro Atómico Ezeiza, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina. Facultad Regional Buenos Aires, Universidad Tecnológica Nacional, Buenos Aires, Argentina.
Augusto Carimatto
Affiliation:
Departamento de Instrumentación y Control, Centro Atómico Ezeiza, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina. Facultad Regional Buenos Aires, Universidad Tecnológica Nacional, Buenos Aires, Argentina.
Daniel Estryk
Affiliation:
Departamento de Instrumentación y Control, Centro Atómico Ezeiza, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina.
Isabel Prieto
Affiliation:
Programa Nacional de Gestión de Residuos Radiactivos, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina.
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Abstract

In recent years, nuclear waste management has become a fundamental issue in the nuclear energy production cycle. Tomographic Gamma Scanner (TGS) is an essential tool for nuclear waste characterization. It is crucial to rely on local support and cost effective solutions; for this reasons, we are designing our TGS system based on local technology. In this work, we present a study of different geometries and instrumentation chain parameters to design a TGS.

A set of Monte Carlo simulations were performed to evaluate energy and spatial resolution limitations of scintillator, CZT (Cadmium Zinc Telluride), and HPGe (high purity germanium) detectors. Collimator and detector geometries were studied to maximize the characteristics of the system. In this study, a phantom of 137Cs and 60Co was utilized to evaluate the overall performance of the proposed TGS system. In addition, the impact of electronic instrumentation chain and image reconstruction algorithms was taken into account.

Type
Articles
Copyright
Copyright © Materials Research Society 2012

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References

REFERENCES

1. Estep, R., Miko, D., Melton, S., and Rawool-Sullivan, M., “A Demonstration of the Gross count Tomographic Gamma Scanner (GC-TGS) Method for Nondestructive Assay of Transuranic Waste”, Los Alamos National Laboratory, 1998.10.2172/335195CrossRefGoogle Scholar
2. Venkataraman, R., Villani, M., Croft, S., McClay, P., McElroy, R., Kane, S.. Muller, W., Estep, R., “An integrated Tomographic Gamma Scanning system for non-destructive assay of radioactive waste “, Nucl. Instrum. Meth. A, 579, pp. 375379, (2007).10.1016/j.nima.2007.04.125CrossRefGoogle Scholar
3. Jan, S., Santin, G., Strul, D. et al. , “GATE: a simulation toolkit for PET and SPECT”, Phys. Med. Biol., 49, pp. 45434561, (2004).10.1088/0031-9155/49/19/007CrossRefGoogle ScholarPubMed
4. Estryk, D., Verrastro, C., Marinsek, S., Belzunce, M., Venialgo, E., “FPGA hierarchical architecture for a Positron Emission Tomography Scanner”, Programmable Logic Conference (SPL), 2010 IEEE.Google Scholar
5. Knoll, Glenn F., “Radiation Detection and Measurements”, John Wiley & Sons Inc 2010.Google Scholar

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