PED_666/2022 Project
English (Engleză) Project title: Multi-sensor data fusion platform for integrated monitoring of ionizing radiation /MEMOIR Periode: 30 Jun 2022 - 30 Jun 2024 Partners: National Institute for Laser, Plasma and Radiation Physics - INFLPR (Coordinator) Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering - IFIN-HH (Partner) Contact Person: Project Director: Dr. Andrei Stancalie (INFLPR) Coordinator: National Institute for Laser, Plasma and Radiation Physics - I.N.F.L.P.R. Atomiștilor 409, Măgurele, Romania Project Summary:
Phases and activities:
Project Phase I implementation (2022)
During the first stage of the project (June 2022 - December 2022), "Designing an experimental model for ionizing radiation monitoring, based on different optical fiber platforms and investigation techniques the activities focused on: a) designing the architecture of the experimental model (selecting the types of optical components), and b) conducting spectral characterizations of these components.
Project Phase II implementation (2022)
During Stage II of the project (2023), “The development of an integrated sensor system characterized in the field of ionizing radiation with preset parameters and the implementation of a software platform for monitoring the optical response”, the tasks included: a) optical multiplexing of multiple types of structures manufactured in single-mode optical fibers b) Exposure to gamma radiation of fiber sensors manufactured in doped fibers, in collaboration with the University “Parthenope” Napoli, Italy, and the Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic. Tests were carried by using a research irradiator “gamma chamber GC-5000”; c) The exposure of the integrated sensing system to an industrial research irradiator with a panoramic Co-60 gamma source; d) Integrating the results in a software platform developed within the current project, with a graphical user interface.
During the third and final stage of the current project, (Jan.2024-June2024), entitled “Validation of the proposed model by using the integrated multiple sensor system and software platform”, the activities included: a) Implementation and testing of the model in a mixed radiation field, obtained through the interaction of high-power lasers with various targets and b) Validation and optimizing of the MEMOIR model following the analysis of long-term results.
Results:
- Method and setup for the optical characterization of FBG and LPG sensors in transmission and reflection.
- Temperature calibration method for optical fiber sensors resulting in temperature coefficient databases
- Databases containing spectral fingerprints and temperature-dependent variations of optical sensors.
- Calculation routines for software implementation to automate and optimize data transmitted by optical sensors.
- Development of algorithms for detecting resonant wavelengths of different optical fingerprints
- Evaluation of the effect of gamma radiation on sensors manufactured in doped fibers.
- Influence of dose rate on the sensitivity of an optical sensor.
- Calibration of optical sensors in a gamma radiation field.
- Development of algorithms for integrating the optical response of the sensing platform, correlating with radiation dose, and displaying a dose map in an intuitive interface
Română (Romanian) Titlul proiectului: Platforma de senzori multipli pentru monitorizarea integrata a radiatiei ionizante / MEMOIR Perioada: 30 Iun 2022 - 30 Iun 2024 Parteneri: Institutul National pentru Fizica Laserilor, Plasmei si Radiatiei – INFLPR (Coordonator) Institutul National de Cercetare-Dezvoltare pentru Fizica si Inginerie Nucleara - IFIN-HH (Partener) Persoana de contact: Director Proiect: Dr. Andrei Stancalie (INFLPR) Coordonator: Institutul Național pentru Fizica Laserilor, Plasmei și Radiației - I.N.F.L.P.R. Atomiștilor 409, Măgurele, ROMÂNIA Rezumat:
Etape si activitati:
In cadrul primei etape (iunie 2022 – decembrie 2022), “Proiectarea unui model experimental pentru monitorizarea radiatiei folosind platforme variate de fibre optice si tehnici de investigare a acestora” s-au realizat: a) proiectarea arhitecturii modelului experimental (selectarea tipurilor componentelor optice) si b) realizarea caracterizarilor spectrale ale acestor componente.
In etapa a doua a proiectului (2023), “Dezvoltarea unui sistem de senzori integrati, caracterizat in camp de radiatii ionizante cu parametrii prestabiliti si implementarea unei platforme software de monitorizare a raspunsului optic”, activitatile au cuprins : a) integrari prin multiplexare optica a mai multor tipuri de structuri fabricate in fibre optice unimodale, b) expunerea la radiatii a unor senzori dopati fabricati in colaborare cu Universitatea Parthenope, Italia respectiv cu Institutul de Fotonica si Electronica, Academia de Stiinte din Cehia, la o sursa gamma Co-60 tip „gamma chamber GC-5000; c) expunerea sistemului de senzori integrat la un iradiator industrial de cercetare cu sursa gamma panoramica; d) integrarea rezultatelor intr-o platforma software cu interfata grafica.
In cadrul etapei finale a proiectului (ianuarie 2024-iunie 2024), “Validarea modelului propus utilizand sistemul de senzori multipli integrat si platforma software”, activitatile au cuprins: a) Implementarea si testarea modelului in camp mixt de radiatii, obtinut prin interactia laserilor de mare putere cu diverse tinte si b) Validarea modelului MEMOIR si realizarea de optimizari in urma analizei rezultatelor pe termen lung.
Rezultate obtinute
- Metoda si montaj pentru caracterizarea optica a senzorilor FBG si LPG in transmisie si reflexie.
- Metoda de etalonare cu temperatura a senzorilor pe fibra optica in vederea obtinerii coeficientilor de variatie spectrala in lungime de unda.
- Baze de date cu amprentele spectrale si variatia cu temperatura a senzorilor optici.
- Rutine de calcul pentru implementarea software in vederea automatizarii si optimizarii datelor transmise de senzorii optici.
- Dezvoltarea de algoritmi de detectie ale minimului sau maximelor unor forme spectrale.
- Efectul radiatiei gamma asupra senzorilor fabricati in fibre dopate
- Influenta debitului de doza asupra sensibilitatii unui senzor optic.
- Calibrarea senzorilor optici in camp de radiatie gamma;
- Realizarea de algoritmi pentru integrarea raspunsului optic a unei platforme de senzori, corelarea cu doza de radiatii si afisarea unei harti de doza intr-o interfata intuitiva
Rezumat public:
PLATFORMA DE SENZORI MULTIPLI PENTRU MONITORIZAREA INTEGRATA A RADIATIEI IONIZANTE (MEMOIR)
(PN-III-P2-2.1-PED-2021-1668)
Avand in vedere contextul international, proiectele curente in desfasurare in cadrul infrastructurilor mari precum CERN dar si aplicatiile bazate pe estimarea valorilor de doza in domeniul spatial, inclusiv pe Statia Internationala Spatiala (ISS), fibrele optice isi gasesc un rol din ce in ce mai important datorita proprietatilor unice de a transmite si cuantifica diversi parametri precum temperatura, umiditate sau tensiuni mecanice in timp real de la distanta, din medii cu risc radiologic. In mod deosebit, prin optimizarea materialelor componente ale unei fibre optice si prin fabricarea de nano-structuri in interiorul miezului sau invelisului, senzorii pe fibra optica au dovedit un potential major pentru aplicatiile in medii cu radiatii ionizante. In proiectul curent, o platforma de senzori pe fibra optica a fost dezvoltata si implementata in facilitati nucleare pentru a transmite informatii despre dozele de radiatie ionizanta, in mod localizat si in timp real. Cu ajutorul unui software dedicat, dezvoltat special in cadrul acestui proiect, platforma de senzori multipli a fost optimizata pentru a putea oferi informatii critice din zone expuse la radiatii. Senzorii componenti, transmit valori despre doza acumulata, debite de doza si chiar integreaza o monitorizare a radiatiei intr-un volum de pana la 1 metru cub, abordare ce pana in momentul de fata nu s-a reagasit in literatura de specialitate. Prin optimizarea unui astfel de sistem, un operator ce nu trebuie sa aiba cunostinte extensive despre domeniul fotonicii sau al radiatiilor ionizante, poate beneficia de o interfata intuitiva unde poate seta parametri senzorilor parte din sistem si poate monitoriza in timp real zona de radiatii din facilitatile unde platforma de senzori este implementata. Mai mult, implementarea proiectului a permis includerea corelarea valorilor caracteristice ale senzorilor, cu valori de doza ce se incadreaza in anumite regimuri de securitate radiologica conform standardelor internationale. Aceste valori au fost implementate in platforma software ce poate fi utilizata si ca un sistem de alerta in cazul unor evenimente cu risc radiologic, operatorul putand fi anuntat in cazul depasirii anumitor praguri si cunoscand exact locatia unde aceste avarii au avut loc. Proiectul a adus rezultate importante in ce priveste dezvoltarea de senzori ultra-sensibili in camp de radiatii, influenta debitelor de doza asupra materialelor dopante precum si statistici privind utilizarea fibrelor pe termen lung, respectiv la ce perioada dupa expunere, un senzor isi recapata partial proprietatile initiale. Tot pentru prima data, in cadrul proiectului MEMOIR, senzori cu fibra optica au fost testati in experimente de laseri de energii inalte, ce prin interactia cu materia produc radiatii ionizante variate. Toate aceste studii reprezinta noutati absolute in domeniul stiintific abordat.
Publications:
I. ISI Papers
[1]. A. Leal-Junior, A. Theodosiou, A. Frizera, A.J. Fernandes, A. Stancalie, A. Ioannou, R. Mihalcea, D. Negut, D. Ighigeanu, K. Kalli, C. Marques, Influence of gamma and electron radiation on perfluorinated optical fiber material composition, Materials Letters 340, 134205 (2023)
[2]. F Esposito, A Stancalie, A Srivastava, M Śmietana, R Mihalcea, CD Neguț, S Campopiano, A Iadicicco, The Impact of Gamma Irradiation on Optical Fibers Identified Using Long Period Gratings, Journal of Lightwave Technology 41 (13) 4389–4396 (2023)
[3]. Razvan MIHALCEA , Daniel IGHIGEANU , Daniel NEGUT , Andrei STANCALIE, COMPARATIVE EVALUATION OF ELECTRON AND GAMMA INDUCED EFFECTS ON FBG FABRICATED IN STANDARD AND RADIATION HARDENED OPTICAL FIBERS BY DIFFERENT TECHNIQUES, U.P.B. Sci. Bull, Series A 85 (3), (2023)
[4]. Y. Luo, B. Yan, A. Stancălie, D. Ighigeanu, D. Neguţ, D. Sporea, S. Wei, X. Fu, J. Wen, T. Wang, X. Sun, G.D. Peng, Experimental study on activating bismuth active centers in bismuth/erbium codoped optical fiber by ionizing radiations,Optical Materials,Volume 152, 115456, (2024)
[5]. Flavio Esposito, Dariusz Burnat, Razvan Mihalcea, Daniel Negut, Anubhav Srivastava, Stefania Campopiano, Lucia Sansone, Michele Giordano, Andrei Stancalie, Agostino Iadicicco, Mateusz Smietana, “Optical properties of thin films monitored in real-time at high gamma radiation doses using long period fiber gratings, Optics&Laser Technology, 176,111019, (2024)
[6]. A. Stancalie, I.R. Andrei, M. Boni, A. Staicu, M.L. Pascu, "Droplet temperature measurement using a fiber Bragg grating", Applied Thermal Engineering, 123905 (2024)
II. National Patent (submitted for evaluation)
[1]. “Multi-sensor data fusion platform for integrated monitoring of ionizing radiation”, R.Mihalcea, A.Stancalie, L.Mihai, P.Bleotu,D.Negut.
III. Proceedings Papers
[1]. Theodosiou, L. Koutsokeras, A. Ioannou, A. Stancalie, C. D. Negut, J. Aubrecht, P. Peterka, G. Constantinides, and K. Kalli "Post-radiation effects of core pumped monolithic holmium-doped silica fibre lasers", Proc. SPIE 12573, Specialty Optical Fibres, 125730U (2023);
[2]. Flavio Esposito, Andrei Stancalie, Anubhav Srivastava, Mateusz Smietana, Jan Mrazek, Razvan Mihalcea, Constantin Daniel Negut, Stefania Campopiano, and Agostino Iadicicco , Response of long period gratings written in B/Ge and P-doped optical fibers to gamma radiation, Proc. SPIE 126430A (12643) 126430A (2023)
IV. Conferences
[1]. F. Esposito, A.Stancalie et al. “Response of long period gratings written in B/Ge and P-doped optical fibers to gamma radiation”, European Workshop on Optical Fiber sensors (EWOFS), 23-26 May 2023, Mons, Belgium
[2] Theodosiou, L. Koutsokeras, A. Ioannou, A. Stancalie, C. D. Negut, J. Aubrecht, P. Peterka, G. Constantinides, and K. Kalli "Post-radiation effects of core pumped monolithic holmium-doped silica fibre lasers”, SPIE Optics + Optoelectronics 2023, 24-27 April 2023, Prague, Czech Republic
[3] F. Esposito, A. Stancalie, A. Srivastava, M. Śmietana, R. Mihalcea, C.D. Neguț, S. Campopiano, A. Iadicicco, “Gamma irradiation and recovery effects on optical fibers investigated by Long Period Grating”, 53rd Annual Meeting of the Associazione Società Italiana di Elettronica (SIE), 7-9 September 2022, Calabria, Italy.
[4] Optical fiber gratings optimized for ionizing radiation sensing and security applications , Andrei STANCALIE, Razvan MIHALCEA, Daniel IGHIGEANU, Daniel NEGUT, Mihai STRATICIUC, Agostino IADICCICO, Flavio ESPOSITO, Mateusz SMIETANA, Jan MRAZEK, 2nd International Conference on Laser, Plasma and Radiation Science and Technology, 16-21 of June, 2024, Danube Delta, Romania.
[5] Comparative analysis of the influences of electron and gamma radiation on FBG sensors created in conventional and radiation hardened optical fibers using a variety of approaches, Razvan MIHALCEA, Andrei STANCALIE, Daniel IGHIGEANU, Daniel NEGUT, 2nd International Conference on Laser, Plasma and Radiation Science and Technology, 16-21 of June, 2024, Danube Delta, Romania.