Ultrafast electron diffraction<xref rid="cpb_27_7_076102_fn1" ref-type="fn">*</xref><fn id="cpb_27_7_076102_fn1"> <label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant No. 11774409), the National Basic Research Program of China (Grant No. 2013CBA01501), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant Nos. XDB16010200 and XDB07030300).</p></fn>

Ultrafast electron diffraction* *

Project supported by the National Natural Science Foundation of China (Grant No. 11774409), the National Basic Research Program of China (Grant No. 2013CBA01501), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant Nos. XDB16010200 and XDB07030300).

Wang Xuan^{1, †}, Li Yutong^{1, 2, 3, ‡}

(color online) (a) Transmission and (b) reflection set-up for a typical UED experiment.