251. Study of x-ray emission from proton acceleration targets at Draco PW laser facility
- Author
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Stefanikova, R., Pan, X., Meckel, N., Smid, M., Schlenvoigt, H.-P., Prencipe, I., Kozlová, M., Gaus, L., Umlandt, M. E. P., Vescovi Pinochet, M. A., Reimold, M., Ziegler, T., Kroll, F., Kraft, S., Schramm, U., Zeil, K., Metzkes-Ng, J., and Falk, K.
- Subjects
x-ray spectroscopy ,laser-produced plasma ,laser-plasma ion acceleration ,characteristic emission lines - Abstract
Laser plasma-based ion accelerators are very promising candidates for many applications. In order to ensure the reliability of such accelerators a comprehensive set of diagnostics is required. X-ray emission spectroscopy allows us to directly measure the plasma conditions of the laser-plasma interaction and also provides information about the hot electron population through the cold K-α emission production. Here, we present preliminary results from two new x-ray spectrometers used to study interaction regimes relevant for laser-driven ion acceleration at ultra-short pulse PW-class laser facility. We acquired the emission spectra from flat Ti targets for a range of target thicknesses and laser energies. Additionally, artificial laser pre-pulses were added to alter the laser absorption efficiency.
- Published
- 2022