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Laser-Assisted Facilities
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Laser-Assisted Facilities

A special issue of Quantum Beam Science (ISSN 2412-382X). This special issue belongs to the section "Instrumentation and Facilities".

Deadline for manuscript submissions: 20 September 2024 | Viewed by 8476

Special Issue Editor

Dr. Francesco Schillaci

E-Mail Website
Guest Editor
ELI Beamlines, International Laser Research Centre, Za Radnicí 835, 252 41 Dolní Břežany, Czech Republic
Interests: particle accelerators; ion beam optics; ion beam diagnostics; magnet design; laser-driven acceleration; laser-driven magnetic field generation

Special Issue Information

Dear Colleagues,

The use of laser–matter interaction is attracting increasing interest in fields of application ranging from plasma physics to the production of secondary radiation. In particular, laser-driven secondary radiation, such as X-rays, neutrons, electrons, and ions, has applications that range from radiation physics to innovative and more efficient cancer treatment techniques. Hence, lasers could complement particle accelerators. Several facilities have been developed, or are under development, that aim to provide users with innovative acceleration technologies for multidisciplinary research.

This Special Issue aims to present the state of the art in laser-driven irradiation facilities and future developments in this field, with emphasis on the foreseen applications and possibilities for users.

We welcome contributions that focus on presenting established or underdevelopment laser facilities.

Dr. Francesco Schillaci
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Quantum Beam Science is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • laser–matter interaction
  • laser-driven acceleration
  • secondary sources
  • multidisciplinary applications

Published Papers (3 papers)

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Research

15 pages, 6344 KiB  
Article
Supervised Machine Learning for Refractive Index Structure Parameter Modeling
by Antonios Lionis, Konstantinos Peppas, Hector E. Nistazakis, Andreas Tsigopoulos, Keith Cohn and Kyle R. Drexler
Quantum Beam Sci. 2023, 7(2), 18; https://doi.org/10.3390/qubs7020018 - 01 Jun 2023
Viewed by 1422
Abstract
The Hellenic Naval Academy (HNA) reports the latest results from a medium-range, near-maritime, free-space laser-communications-testing facility, between the lighthouse of Psitalia Island and the academy’s laboratory building. The FSO link is established within the premises of Piraeus port, with a path length of [...] Read more.
The Hellenic Naval Academy (HNA) reports the latest results from a medium-range, near-maritime, free-space laser-communications-testing facility, between the lighthouse of Psitalia Island and the academy’s laboratory building. The FSO link is established within the premises of Piraeus port, with a path length of 2958 m and an average altitude of 35 m, mainly above water. Recently, the facility was upgraded through the addition of a BLS450 scintillometer, which is co-located with the MRV TS5000/155 FSO system and a WS-2000 weather station. This paper presents the preliminary optical turbulence measurements, collected from 24 to 31 of May 2022, alongside the macroscopic meteorological parameters. Four machine-learning algorithms (random forest (RF), gradient boosting regressor (GBR), single layer (ANN), and deep neural network (DNN)) were utilized for refractive-index-structural-parameter regression modeling. Additionally, another DNN was used to classify the strength level of the optical turbulence, as either strong or weak. The results showed very good prediction accuracy for all the models. Specifically, the ANN algorithm resulted in an R-squared of 0.896 and a mean square error (MSE) of 0.0834; the RF algorithm also gave a highly acceptable R-squared of 0.865 and a root mean square error (RMSE) of 0.241. The Gradient Boosting Regressor (GBR) resulted in an R-squared of 0.851 and a RMSE of 0.252 and, finally, the DNN algorithm resulted in an R-squared of 0.79 and a RMSE of 0.088. The DNN-turbulence-strength-classification model exhibited a very acceptable classification performance, given the highly variability of our target value (Cn2), since we observed a predictive accuracy of 87% with the model. Full article
(This article belongs to the Special Issue Laser-Assisted Facilities)
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23 pages, 6769 KiB  
Article
The ELIMAIA Laser–Plasma Ion Accelerator: Technological Commissioning and Perspectives
by Francesco Schillaci, Lorenzo Giuffrida, Maksym Tryus, Filip Grepl, Stanislav Stancek, Andriy Velyhan, Valeriia Istokskaia, Tadzio Levato, Giada Petringa, Giuseppe A. P. Cirrone, Josef Cupal, Lucia Koubiková, Davorin Peceli, Jeffrey Alan Jarboe, Tarcio de Castro Silva, Martin Cuhra, Timofej Chagovets, Vasiliki Kantarelou, Marco Tosca, Vahagn Ivanyan, Martina Greplová Žáková, Jan Psikal, Roman Truneček, Anna Cimmino, Roberto Versaci, Veronika Olšovlcová, Daniel Kramer, Pavel Bakule, Jan Ridky, Georg Korn, Bedrich Rus and Daniele Margaroneadd Show full author list remove Hide full author list
Quantum Beam Sci. 2022, 6(4), 30; https://doi.org/10.3390/qubs6040030 - 09 Oct 2022
Cited by 3 | Viewed by 2834
Abstract
We report on the technological commissioning of the Laser–Plasma Ion Accelerator section of the ELIMAIA user beamline at the ELI Beamlines facility in the Czech Republic. The high-peak, high-average power L3-HAPLS laser system was used with an energy of ~10 J and pulse [...] Read more.
We report on the technological commissioning of the Laser–Plasma Ion Accelerator section of the ELIMAIA user beamline at the ELI Beamlines facility in the Czech Republic. The high-peak, high-average power L3-HAPLS laser system was used with an energy of ~10 J and pulse duration of ~30 fs on target, both in single-pulse and high repetition-rate (~0.5 Hz) mode. The laser pulse was tightly focused to reach ultrahigh intensity on target (~1021 W/cm2) and sustain such laser–plasma interaction regime during high repetition-rate operations. The laser beam, ion beam, and laser–plasma emission were monitored on a shot-to-shot basis, and online data analysis at 0.5 Hz was demonstrated through the full set of used diagnostics (e.g., far and near field, laser temporal diagnostics, X- and gamma-ray detectors, Thomson Parabola ion spectrometer, time-of-flight ion detectors, plasma imaging, etc.). The capability and reliability of the ELIMAIA Ion Accelerator was successfully demonstrated at a repetition rate of 0.5 Hz for several hundreds of consecutive laser shots. Full article
(This article belongs to the Special Issue Laser-Assisted Facilities)
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11 pages, 1990 KiB  
Article
Experimental Setup for Irradiation of Cell Cultures at L2A2
by Alberto Torralba, Lidia Palenciano, Alicia Reija, Juan Pablo Rigla, Juan Peñas, Juan José Llerena, Ramiro Contreras-Martínez, José Benlliure, Ana Vega, Miguel Elías Aguado-Barrera, Camilo Ruiz and Michael Seimetz
Quantum Beam Sci. 2022, 6(1), 10; https://doi.org/10.3390/qubs6010010 - 21 Feb 2022
Cited by 1 | Viewed by 3911
Abstract
Laser–plasma proton sources and their applications to preclinical research has become a very active field of research in recent years. In addition to their small dimensions as compared to classical ion accelerators, they offer the possibility to study the biological effects of ultra-short [...] Read more.
Laser–plasma proton sources and their applications to preclinical research has become a very active field of research in recent years. In addition to their small dimensions as compared to classical ion accelerators, they offer the possibility to study the biological effects of ultra-short particle bunches and the correspondingly high dose rates. We report on the design of an experimental setup for the irradiation of cell cultures at the L2A2 laboratory at the University of Santiago de Compostela, making use of a 1.2 J Ti: Sapphire laser with a 10 Hz repetition rate. Our setup comprises a proton energy separator consisting of two antiparallel magnetic fields realized by a set of permanent magnets. It allows for selecting a narrow energy window around an adaptable design value of 5 MeV out of the initially broad spectrum typical for Target Normal Sheath Acceleration (TNSA). At the same time, unwanted electrons and X-rays are segregated from the protons. This part of the setup is located inside the target vessel of the L2A2 laser. A subsequent vacuum flange sealed with a thin kapton window allows for particle passage to external sample irradiation. A combination of passive detector materials and real-time monitors is applied for measurement of the deposited radiation dose. A critical point of this interdisciplinary project is the manipulation of biological samples under well-controlled, sterile conditions. Cell cultures are prepared in sealed flasks with an ultra-thin entrance window and analysed at the nearby Fundación Pública Galega Medicina Xenómica and IDIS. The first trials will be centred at the quantification of DNA double-strand breaks as a function of radiation dose. Full article
(This article belongs to the Special Issue Laser-Assisted Facilities)
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