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Ivan participated in the ICSLS 2024 conference


The ICSLS 2024 conference was held in Japan from 2nd to 7th June at Prefectural Budokan in Otsu. Ivan took part at this conference, where he had two posters. One poster was about the joint work with LHD colleagues on the application of generative artificial intelligence in modeling of emitted tungsten UTA structure in EUV spectral range. The second poster was the presentation of NOVA2LIBS4fusion project results regarding the study of separation of hydrogen and deuterium spectral lines relevant for tritium retention studies.

Finally, he also had the honor of visiting the NIFS facility in Toki. Here, he held a seminar about the results disseminated at the conference, and also took a tour of LHD device that is in operation at NIFS.

Milica gave a lecture on 17th Photonics Workshop

17th Photonics Workshop was held from 10th – 14th March at the Ski Resort Kopaonik. Milica was invited to give a lecture on her work on diagnostics of Laser Induced Plasma from thin oil film. The talk was entitled Diagnostics of laser-induced plasma from a thin oil film.

Milica presented the results from her PhD thesis on IX International School and Conference on Photonics

IX International School and Conference on Photonics was held in Belgrade from 28th August to 1st September. Milica was invited to give a progress report on her work on application of LIBS in determination of trace metals in oils. The talk was entitled Application of laser-induced breakdown spectroscopy for the determination of trace metals in oils.

Ivan presented part of his PhD thesis work on 14th SCSLSA

14th SCSLSA was held in Bajna Bašta from 19th to 23rd June. Ivan was invited to give a progress report on his wok on application of Machine Learning algorithms on the determination of Stark Broadening line widths. The talk was entitled Stark Broadening Modeling with ML and AI Algorithms and abstract is given below.

During past 20 years many Stark broadening models were developed that can calculate spectral lineshape and estimate a line width that is extensively used in plasma diagnostics of both astrophysical and laboratory plasmas. Some of these calculations yield results relatively fast, some of them need a lot of computational time. Therefore, idea of creating a machine learning (ML) model emerged as a tool for fast estimation of Stark width without need of huge computational time. In our approach, out of three tested models, random forest (RF) algorithm showed the best predictive power after it has been trained, where the coefficient of determination R2 = 0.94 was obtained. Model was trained on a database created by merging parameters from Stark B and NIST atomic databases, it had 14 input parameters that were used to predict final Stark width. Results were compared with experimental ones as well as with SCP theory. We also checked for regularities in Stark effect, and they were also confirmed and in agreement with previous findings.

Ivan participated at SLSP6

Ivan took participation at 6th Spectral Line Shapes in Plasma Workshop (SLSP6) where he held 15 minute lecture entitled Stark Broadening Modeling with ML Algorithms, in which he presented his recent work on application of machine learning algorithms for modeling of Stark spectral line broadening.

SPIG 2022

Ivke, Biljana, Neša, Milica and Ivan participated in 31th Symposium of Physics of Ionized Gases (SPIG 2022), held in Belgrade at the Serbian Academy of Sciences and Art. The conference was organized in hybrid format, part of the lectures was online and the other part was on site. Ivke was member of the Scientific Committee for the fifth consecutive time. Neša was in the Ogranizing Committee.

At the poster presentation part of the conference, Biljana presented the poster entitled Spectroscopic characterization of laser-induced plasma on doped tungsten, while Ivan presented the poster entitled Elemental analysis of austenitic steel by calibration-free laser-induced breakdown spectroscopy (CF-LIBS). Apart from this, we also presented, or participated in the following posters:

Self-mixing interferometry for plasma diagnostics – Nikola Goleš, Neda Babucić, Nenad M. Sakan and Milivoje Ivković

Application of artificial neural network in the analysis of the spectra from laser ablation combined with fast pulse discharge – Nenad M. Sakan, Milica L. Vinić, Vladimir A. Srećković, Ivan Traparić, and Milivoje R. Ivković

Modeling of Stark spectral line broadening by machine learning algorithms – Irinel Tapalaga, Ivan Traparić, Nora Trklja Boca, Jagoš Purić and Ivan P. Dojčinović

LIBS 2022 Bari

Ivke, along side with prof. Miroslav Kuzmanović and prof. Jelena Savović participated at international LIBS 2022 conference held in Bari to present recent results obtained through the project IDEAS, financed by Science Fund of the Republic of Serbia.

Ivke presented a poster entitled LIBS analysis of tungsten – copper alloys while prof. Savović held the invited talk entitled Relevance of mid-infrared laser as an excitation source for a variety of LIBS applications.

SPIG 2020

Ivke, Biljana and our MSc student Ivan Traparić participated in this year’s jubilee 30th Symposium of Physics of Ionized Gases (SPIG 2020). Because of the bad situation in Serbia due to Coronavirus pandemic, SPIG 2020 was organized completely in online format. The honor to give the introductory talk had Acad. Prof. dr Zoran Petrović. Ivke was member of the Scientific Committee for the forth consecutive time. Also, Ivke chaired the Thursday’s mourning Plenary Session.

At the poster presentation part of the conference, Biljana presented the poster entitled “Appearance of Be II 436.1 nm line with forbidden component in LIBS plasma”, while Ivan presented the poster entitled “VUV Spectroscopy of the He II – Lyman Series for electron density estimation”.

We are also proud to announce that we invited five lecturers. First, Tony Donne, the Programme Manager of EUROfusion and head of the Fusion Physics Division at the Dutch Institute for Fundamental Energy Research (DIFFER) gave the plenary talk “Challenges and Progress on the Path Towards Fusion Electricity”. Second, Sibylle Günter, Scientific Director of IPP (Max Planck Institute for Plasma Physics) gave the plenary lecture “The Two Conceps of Magnetic Confinement: Tokamak and Stellerator”. Third invited lecturer was Dimitri Batani from University of Bordeaux, who was invited to held the lecture at 1st BegFust (Belgrade Fusion Science and Technology Workshop), which was unfortunately postponed. Nevertheless, prof. Batani held the plenary lecture entitled “Current Status of the Laser Fusion Research and the Shock Ignition Approach”Fourth invited lecturer was Sebastian Brezinsek from Forschungszentrum JülichInstitute of Energy and Climate Research, who gave the topical invited lecture “Plasma-Wall interactions in Wendelstein 7-X Operating with Graphite Divertor”. Fifth invited lecturer was Daiji Kato from NIFS (National Institute for Fusion Science) Japan, who gave the topical invited lecture entitled “Compact Electron Beam Ion Trap for Spectroscopy of Multiple Charged Ions“.

Biljana EWCPS Attendance

MilosAs you might remember from our earlier, Biljana was in Pau (France) for attending 18th European Winter Conference on Plasma Spectroscopy (EWCPS) from 3rd to 8th February 2019.

She gave a lecture entitled “Uncovering Beryllium line with forbidden component”:

>>> MISSING PHOTO (waiting for organizors) <<<

She also obtained an Award Certificate for complimentary registration for the next year conference edition in Tucson, AR (USA):

Milos

For more details visit the following link.

New publication by Miloš

Milos We are proudly presenting published article as a proceeding of the SPIG conference by Miloš. The article is entitled “Experimental Runaway Electron Current Estimation in COMPASS Tokamak” and published by Atoms journal.