Open AccessPotential hazards and mitigation of X-ray radiation generated by laser-induced plasma from research-grade laser systems
Author(s) -
Philip Mosel,
Pranitha Sankar,
Zulqarnain 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 Kovačev
Publication year - 2022
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.468135
Subject(s) - laser , optics , radiation , electromagnetic shielding , ablation , plasma , materials science , irradiation , optoelectronics , physics , nuclear physics , engineering , composite material , aerospace engineering
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 10 13 W/cm 2 can exceed the annual irradiation limit even in one hour, requiring appropriate shielding for the safety of the researchers.