TY - JOUR
T1 - Buneman instability, pierce instability, and double-layer formation in a collisionless plasma
AU - Iizuka, S.
AU - Saeki, K.
AU - Sato, N.
AU - Hatta, Y.
PY - 1979/1/1
Y1 - 1979/1/1
N2 - Instabilities and double-layer formation are systematically investigated on a bounded collisionless system with electron beam penetrating through a plasma. The Buneman instability is observed at low beam currents. Above a critical current, there appears a sudden nonoscillatory potential drop due to the Pierce instability, which traps ions in the potential well. This collisionless ion trapping provides a new formation mechanism of the double layer, which is controlled by changing the speed of the potential drop.
AB - Instabilities and double-layer formation are systematically investigated on a bounded collisionless system with electron beam penetrating through a plasma. The Buneman instability is observed at low beam currents. Above a critical current, there appears a sudden nonoscillatory potential drop due to the Pierce instability, which traps ions in the potential well. This collisionless ion trapping provides a new formation mechanism of the double layer, which is controlled by changing the speed of the potential drop.
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U2 - 10.1103/PhysRevLett.43.1404
DO - 10.1103/PhysRevLett.43.1404
M3 - Article
AN - SCOPUS:3843143167
SN - 0031-9007
VL - 43
SP - 1404
EP - 1407
JO - Physical Review Letters
JF - Physical Review Letters
IS - 19
ER -