Matter and Radiation at Extremes, 2018, 3 (4): 197, Published Online: Oct. 2, 2018
Development of new diagnostics based on LiF detector for pump-probe experiments
XFEL XFEL Shock waves Shock waves Pump-probe experiments Pump-probe experiments High energy density science High energy density science X-ray spectroscopy X-ray spectroscopy X-ray imaging X-ray imaging
Abstract
We present new diagnostics for use in optical laser pump - X-ray Free Electron Laser (XFEL) probe experiments to monitor dimensions, intensity profile and focusability of the XFEL beam and to control initial quality and homogeneity of targets to be driven by optical laser pulse. By developing X-ray imaging, based on the use of an LiF crystal detector, we were able to measure the distribution of energy inside a hard X-ray beam with unprecedented high spatial resolution (~1 mm) and across a field of view larger than some millimetres. This diagnostic can be used in situ, provides a very high dynamic range, has an extremely limited cost, and is relatively easy to be implemented in pumpprobe experiments. The proposed methods were successfully applied in pump-probe experiments at the SPring-8 Angstrom Compact free electron LAser (SACLA) XFEL facility and its potential was demonstrated for current and future High Energy Density Science experiments.
T. Pikuz, A. Faenov, N. Ozaki, T. Matsuoka, B. Albertazzi, N.J. Hartley, K. Miyanishi, K. Katagiri, S. Matsuyama, K. Yamauchi, H. Habara, Y. Inubushi, T. Togashi, H. Yumoto, H. Ohashi, Y. Tange, T. Yabuuchi, M. Yabashi, A.N. Grum-Grzhimailo, A. Casner, I. Skobelev, S. Makarov, S. Pikuz, G. Rigon, M. Koenig, K.A. Tanaka, T. Ishikawa, R. Kodama. Development of new diagnostics based on LiF detector for pump-probe experiments[J]. Matter and Radiation at Extremes, 2018, 3(4): 197.