Descrizione del progetto
La diagnostica laser avanzata farà luce sul plasma e sui fenomeni di scarica
Quasi tutto il nostro universo è fatto di plasma. A differenza dei normali gas, i plasmi conducono l’elettricità e sono influenzati da campi magnetici. Una scarica di gas è una sorta di plasma formato dal passaggio della corrente elettrica attraverso un gas, creando numerose specie tra cui atomi, ioni, elettroni, molecole, radicali, specie eccitate e altro ancora. Le scariche di gas e i relativi plasmi sono importanti in molte applicazioni: rivestimenti, schermi televisivi, chimica analitica e ambientale, medicina e altro. Nonostante l’applicazione diffusa, manca ampiamente una comprensione dettagliata dei processi sottostanti e delle reazioni intermedie. Il progetto LAPLAS sta sviluppando tecnologie avanzate basate sul laser per studiare il fenomeno di scarica di plasma ad alta risoluzione spaziale e temporale, migliorando la comprensione di base per guidare lo sviluppo di dispositivi e processi applicati.
Obiettivo
The aim of this proposal is to (1) develop state-of-the-art laser diagnostics for investigating plasma phenomena and (2) demonstrate and apply these methods in relevant conditions for plasma-discharge applications.
Plasmas are widely used in applications and research for e.g. surface and gas treatment, ignition systems and material processing. Development of application designs and approaches for modelling these complex processes have led to better optimized systems. Plasma-discharge formation is randomized and transient and these plasma-induced processes occur in volatile and harsh environments. Conventional methods for investigating plasma phenomena mainly rely on electric probe techniques, ex-situ mass spectroscopy or passive light emission analysis. Intermediate phenomena are rarely studied in-situ and little is known about intermediate states and governing processes, making plasma-discharge applications hard to assess and analyse.
Development of laser diagnostic techniques and extensive hardware development has led to rapid advances in a various other research fields the last decades. These previous efforts provide a solid foundation for development of advanced laser-based plasma diagnostics and ground-breaking investigations of stochastic discharge plasma phenomena. This proposal is arranged in a number of work packages where the PI has unique expertise for developing state-of-the-art laser diagnostics techniqes. An example is ultra-high speed videography where the PI recently invented the world’s fastest video camera. This method is uniquely tailored for plasma investigations since it can be used in spectroscopic investigations of single events.
The outcome of this project is to (I) provide experimentalist with novel diagnostic tools for studies of plasma phenomena and (II), generate experimental data that will increase understanding of plasma-induced phenomena for scientists and enginee.
Campo scientifico
Programma(i)
Argomento(i)
Meccanismo di finanziamento
ERC-STG - Starting GrantIstituzione ospitante
22100 Lund
Svezia