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Automated Delivery of Microfabricated Targets for Intense Laser Irradiation Experiments
Published on: January 28, 2021
Novel gas target for laser wakefield accelerators
C Aniculaesei1, Hyung Taek Kim1, Byung Ju Yoo1
1Center for Relativistic Laser Science, Institute for Basic Science (IBS), Gwangju 61005, South Korea.
Abstract:
A novel gas target for interactions between high power lasers and gaseous medium, especially for laser wakefield accelerators, has been designed, manufactured, and characterized. The gas target has been designed to provide a uniform density profile along the central gas cell axis by combining a gas cell and slit nozzle. The gas density has been tuned from ∼1017 atoms/cm3 to ∼1019 atoms/cm3 and the gas target length can be varied from 0 to 10 cm; both changes can be made simultaneously while keeping the uniform gas profile. The gas density profile inside the gas cell has been measured using interferometry and validated using computational fluid dynamics.
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