TY - JOUR
T1 - Effect of orifice diameter on the performance of a miniature microwave neutralizer
AU - Dey, Indranuj
AU - Yamamoto, Naoji
AU - Nakashima, Hideki
PY - 2017
Y1 - 2017
N2 - A miniature electron cyclotron resonance (ECR) plasma source is operated as a neutralizer, and the effect of orifice diameter on the output is studied. The output is quite promising for accompanying 1-mN-class ion thrusters with an output ion-beam current of 12–15mA. The optimum orifice diameter is independent of neutral mass flow rate, implying that factors other than electron-neutral collisions are dominant. The variation in orifice diameter is expected to alter the microwave field boundary conditions inside discharge chamber (DC), and also influence the dc-electric field existing between the orifice and collector. The convolution of these two factors would be primarily responsible for the optimum orifice diameter.
AB - A miniature electron cyclotron resonance (ECR) plasma source is operated as a neutralizer, and the effect of orifice diameter on the output is studied. The output is quite promising for accompanying 1-mN-class ion thrusters with an output ion-beam current of 12–15mA. The optimum orifice diameter is independent of neutral mass flow rate, implying that factors other than electron-neutral collisions are dominant. The variation in orifice diameter is expected to alter the microwave field boundary conditions inside discharge chamber (DC), and also influence the dc-electric field existing between the orifice and collector. The convolution of these two factors would be primarily responsible for the optimum orifice diameter.
UR - http://www.scopus.com/inward/record.url?scp=85021782581&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85021782581&partnerID=8YFLogxK
U2 - 10.2322/tjsass.60.259
DO - 10.2322/tjsass.60.259
M3 - Article
AN - SCOPUS:85021782581
SN - 0549-3811
VL - 60
SP - 259
EP - 262
JO - Transactions of the Japan Society for Aeronautical and Space Sciences
JF - Transactions of the Japan Society for Aeronautical and Space Sciences
IS - 4
ER -