Ultrafast structural dynamics studied by kilohertz time-resolved x-ray diffraction

Guo Xin^a),^b), Jiang Zhou-Ya^c),^d), Chen Long^c),^d), Chen Li-Ming^b),^d), Xin Jian-Guo^a), Rentzepis Peter M.^e), Chen Jie†^c),^d)

Total amount of Cu K_α emission as a function of target displacement from the best focal spot. Positive values of the distance indicate that the focus is situated in front of the target. For negative values the focus is within the target.