Effect of orifice diameter on the performance of a miniature microwave neutralizer

Indranuj Dey, Naoji Yamamoto, Hideki Nakashima

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish
Pages (from-to)259-262
Number of pages4
JournalTransactions of the Japan Society for Aeronautical and Space Sciences
Volume60
Issue number4
DOIs
Publication statusPublished - Jan 1 2017

Fingerprint

neutralizers
orifices
Orifices
Microwaves
microwaves
output
electron
field margin
ion
Electron cyclotron resonance
Plasma sources
mass flow rate
electric field
electron cyclotron resonance
beam currents
Convolution
boundary condition
convolution integrals
collision
accumulators

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Space and Planetary Science

Cite this

Effect of orifice diameter on the performance of a miniature microwave neutralizer. / Dey, Indranuj; Yamamoto, Naoji; Nakashima, Hideki.

In: Transactions of the Japan Society for Aeronautical and Space Sciences, Vol. 60, No. 4, 01.01.2017, p. 259-262.

Research output: Contribution to journalArticle

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