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Sensing and Monitoring of Radwaste Storage: A Realtime Online Demonstrator

Published online by Cambridge University Press:  28 March 2012

Luigi Cosentino
Affiliation:
INFN Laboratori Nazionali del Sud, via S. Sofia 62, 95125 Catania, Italy
Claudio Calì
Affiliation:
INFN Laboratori Nazionali del Sud, via S. Sofia 62, 95125 Catania, Italy
Giovanni De Luca
Affiliation:
INFN Laboratori Nazionali del Sud, via S. Sofia 62, 95125 Catania, Italy
Paolo Finocchiaro
Affiliation:
INFN Laboratori Nazionali del Sud, via S. Sofia 62, 95125 Catania, Italy
Pietro Litrico
Affiliation:
INFN Laboratori Nazionali del Sud, via S. Sofia 62, 95125 Catania, Italy
Alfio Pappalardo
Affiliation:
INFN Laboratori Nazionali del Sud, via S. Sofia 62, 95125 Catania, Italy
Massimo Piscopo
Affiliation:
INFN Laboratori Nazionali del Sud, via S. Sofia 62, 95125 Catania, Italy
Carlotta Scirè
Affiliation:
INFN Laboratori Nazionali del Sud, via S. Sofia 62, 95125 Catania, Italy
Sergio Scirè
Affiliation:
INFN Laboratori Nazionali del Sud, via S. Sofia 62, 95125 Catania, Italy
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Abstract

At INFN-LNS we have developed a new kind of gamma mini-sensor, which allowed to implement a prototype array of modular sensors for online monitoring of radioactive waste. The sensors are based on Silicon PhotoMultipliers and scintillating fibers sensitive to gamma radiation, that have to be placed in a repository in shape of a fine grid, around each single waste drum. We simulated the counting response of thin scintillating fibers and verified the results with measurements using radioactive sources. Front-end electronics and an FPGA-based counting system were developed to handle the field data, also implementing data transmission, a graphical user interface and a data storage system. Moreover a test of four sensors in a real radwaste storage site was performed with promising results.

Type
Articles
Copyright
Copyright © Materials Research Society 2012

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References

REFERENCES

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