HEDS Poster

[HEDSp-02] Formation of a deep cylindrical cavity in LiF crystal by XFEL radiation

Sergey Makarov², Sergey Grigoryev², *Tatiana Tatiana Pikuz¹, Nail Inogamov³, Victor Khokhlov³, Norimasa Ozaki¹, Masahiko Ishino⁴, Masaharu Nishikino⁴, Thanh-hung Dinh⁴, Tetsuya Kawachi⁴, Mikako Makita⁵, Motoaki Nakatsutsumi⁵, Thomas R. Preston⁵, Karen Appel⁵, Zuzana Konopkova⁵, Valerio Cerantola⁵, Erik Brambrink⁵, Jan-Patrick Schwinkendorf⁵, Istvan Mohacsi⁵, Ludovic Rapp⁶, Andrei Rode⁶, Eugene Gamaly⁶, Takahisa Shobu⁷, Aki Tominaga⁷, Hirotaka Nakamura¹, Ryosuke Kodama¹, Vasily Zhakhovsky², Sergey Pikuz⁸, Ulf Zastrau⁵ (1. Osaka University, 2. Joint Institute for High Temperatures RAS, 3. Landau Institute for Theoretical Physics RAS, 4. Kansai Institute for Photon Science QST, 5. European XFEL, 6. Australian National University, 7. Material Science Research Center of Japan Atomic Energy Agency, 8. HB11 Energy Holdings)

The damage of the LiF crystal after irradiating it with the EuFEL pulses at photon energy 9 keV was investigated for delivered doses in the range of 2 –850 kJ/cm³ per pulse. Complexes analysis of the LiF sample showed the formation of the unexpected deep cylindrical cavity with a ratio diameter to a depth of more than 1: 100 at doses > 250 kJ/cm³. The result is important for material processing.