Potential hazards and mitigation of X-ray radiation generated by laser-induced plasma from research-grade laser systems

authored by: Philip Mosel, Pranitha Sankar, Zulqarnain, Elisa Appi, Christoph Jusko, David Zuber, Sven Kleinert, Jan Düsing, Jose Mapa, Günter Dittmar, Thomas Püster, Petra Böhmer-Brinks, Jan Willem Vahlbruch, Uwe Morgner, Milutin Kovacev
Abstract: A large range of laser-matter applications employ ultrashort pulses and high laser intensity. Such processes can lead to unrequired X-ray generation, which represents a hazardous radiation factor even for common laboratory research-grade laser systems. We present here an analysis of the radiation dose rate and X-ray spectrum emitted during ablation of a rotating copper cylinder with respect to several laser parameters. The results show that focused sub-picosecond pulses with intensity above 10¹³ W/cm² can exceed the annual irradiation limit even in one hour, requiring appropriate shielding for the safety of the researchers.
Organisation(s): Institute of Quantum Optics
QuantumFrontiers
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
Centre for Radiation Protection and Radioecology
External Organisation(s): Laser Zentrum Hannover e.V. (LZH)
Ingenieurbüro Prof. Dr.-Ing. G. Dittmar
Type: Article
Journal: Optics express
Volume: 30
Pages: 37038-37050
No. of pages: 13
ISSN: 1094-4087
Publication date: 26.09.2022
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Atomic and Molecular Physics, and Optics
Electronic version(s): https://doi.org/10.1364/OE.468135 (Access: Open)

BibTeX

@article{f75ad94afdbb417d90d80ffa6e3de55a,
title = "Potential hazards and mitigation of X-ray radiation generated by laser-induced plasma from research-grade laser systems",
abstract = "A large range of laser-matter applications employ ultrashort pulses and high laser intensity. Such processes can lead to unrequired X-ray generation, which represents a hazardous radiation factor even for common laboratory research-grade laser systems. We present here an analysis of the radiation dose rate and X-ray spectrum emitted during ablation of a rotating copper cylinder with respect to several laser parameters. The results show that focused sub-picosecond pulses with intensity above 1013 W/cm2 can exceed the annual irradiation limit even in one hour, requiring appropriate shielding for the safety of the researchers.",
keywords = "high power laser, Laser beams, Laser matter interations, Laser systems, Nonlinear optics applications, Ultrashort pulses",
author = "Philip Mosel and Pranitha Sankar and Zulqarnain and Elisa Appi and Christoph Jusko and David Zuber and Sven Kleinert and Jan D{\"u}sing and Jose Mapa and G{\"u}nter Dittmar and Thomas P{\"u}ster and Petra B{\"o}hmer-Brinks and Vahlbruch, {Jan Willem} and Uwe Morgner and Milutin Kovacev",
note = "Funding Information: Acknowledgments. Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany{\textquoteright}s Excellence Strategy within the Cluster of Excellence PhoenixD (EXC 2122, Project ID 390833453) and EXC-2123 Quantum Frontiers - 390837967, EIC Open grant No. 101047223-NanoXCAN. Funding Information: Funding. HORIZON EUROPE European Innovation Council (EIC Open grant No. 101047223-NanoXCAN); Deutsche Forschungsgemeinschaft (EXC 2122, EXC-2123, PhoenixD - 390833453, Quantum Frontiers - 390837967). ",
year = "2022",
month = sep,
day = "26",
doi = "10.1364/OE.468135",
language = "English",
volume = "30",
pages = "37038--37050",
journal = "Optics express",
issn = "1094-4087",
publisher = "OSA - The Optical Society",
number = "20",
}