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

Signal velocities versus: (a) and (c), τ when V_pp = 20 V and ε_b = 20 eV (V_SG2 = −28 V); and (b) and (d), V_pp when τ = 4.31 μs and ε_b = 3.2 eV (V_SG2 = −40 V).