TY - JOUR
T1 - A method for measuring fast time evolutions of the plasma potential by means of a simple emissive probe
AU - Iizuka, S.
AU - Michelsen, P.
AU - Juul Rasmussen, J.
AU - Schrittwieser, R.
AU - Hatakeyama, R.
AU - Saeki, K.
AU - Sato, N.
PY - 1981/12/1
Y1 - 1981/12/1
N2 - A method is presented for obtaining the temporal evolution of the plasma potential, which is assumed to be given by the floating potential of a simple emissive probe. The construction of the probe is also described. The method avoids the slow time response of the usual technique where the floating potential is measured across a high resistance. During each sweep of the probe voltage, the changing of the sign of the probe current, which is sampled at a specific time, gives rise to a negative pulse, driving the pen-lift of an X-Y recorder. Since the real floating potential is measured where the probe current is zero, the disturbance of the plasma is kept as low as possible.
AB - A method is presented for obtaining the temporal evolution of the plasma potential, which is assumed to be given by the floating potential of a simple emissive probe. The construction of the probe is also described. The method avoids the slow time response of the usual technique where the floating potential is measured across a high resistance. During each sweep of the probe voltage, the changing of the sign of the probe current, which is sampled at a specific time, gives rise to a negative pulse, driving the pen-lift of an X-Y recorder. Since the real floating potential is measured where the probe current is zero, the disturbance of the plasma is kept as low as possible.
UR - http://www.scopus.com/inward/record.url?scp=0019634943&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0019634943&partnerID=8YFLogxK
U2 - 10.1088/0022-3735/14/11/017
DO - 10.1088/0022-3735/14/11/017
M3 - Article
AN - SCOPUS:0019634943
VL - 14
SP - 1291
EP - 1295
JO - Measurement Science and Technology
JF - Measurement Science and Technology
SN - 0957-0233
IS - 11
M1 - 017
ER -