Generation of high-flux soft X-ray high harmonics driven by loosely focused TW-class infrared pulsesKotaro Nishimura, Yuxi Fu, Akira Suda, Katsumi Midorikawa and J. Takahashi EijiEPJ Web Conf., 205 (2019) 02012DOI: https://doi.org/10.1051/epjconf/201920502012