L-Shell X-ray conversion yields for laser-irradiated tin and silver foils

Journal article

We have employed the VULCAN laser facility to generate a laser plasma X-ray source for use in photoionization experiments. A nanosecond laser pulse with an intensity of order 1015 Wcm−2 was used to irradiate thin Ag or Sn foil targets coated onto a parylene substrate, and the L-shell emission in the 3.3–4.4 keV range was recorded for both the laser-irradiated and nonirradiated sides. Both the experimental and simulation results show higher laser to X-ray conversion yields for Ag compared with Sn, with our simulations indicating yields approximately a factor of two higher than those found in the experiments. Although detailed angular data were not available experimentally, the simulations indicate that the emission is quite isotropic on the laser-irradiated side but shows close to a cosine variation on the nonirradiated side of the target as seen experimentally in the previous work.

Authors: Singh, RL; White, S; Charlwood, M; Keenan, FP; Hyland, C

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: Hindawi
• Journal: Laser and Particle Beams
• Volume: 2022
• Pages: 1-10
• Article number: 3234804
• Publication date: 2022-06-07
• Acceptance date: 2022-04-20
• DOI: 10.1155/2022/3234804
• EISSN: 1469-803X
• ISSN: 0263-0346
• Language: English
• Keywords: FFR