Observation of double pseudowaves in an ion–beam–plasma system<xref rid="cpb_27_8_085201fn1" ref-type="fn">*</xref> <fn id="cpb_27_8_085201fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant Nos. 11575183 and 11705201).</p></fn>

Observation of double pseudowaves in an ion–beam–plasma system* *

Project supported by the National Natural Science Foundation of China (Grant Nos. 11575183 and 11705201).

Wei Zi-An, Ma Jin-Xiu^†, Yi Kai-Yang

(color online) (a) The dependence of the signals received at 140 mm from the excitation grid with respect to τ when V_pp = 10 V, V_SG2 = −28 V, and ε_b = 20 eV. (b) The peak value of the signals versus τ.