Mass spectrometry in weakly ionized plasmas using a Gifford-McMahon cryocooled superconducting magnet

T. Murakami, T. Kaneko, J. Terashima, R. Hatakeyama, S. Murase, S. Shimamoto

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Direct mass spectrometry in the production region of collision-dominated weakly ionized argon plasma was demonstrated for omegatron using Gifford-McMahon cryocooled superconducting magnet. A numerical model which included collisional effects was proposed to describe the performance of omegatron. Mass spectrometry was successfully conducted using a high magnetic flux density of up to 2 T and a high pressure on the order of 10-3 Torr. It was found that an increase of the radio frequency voltage applied to the omegatron resulted in enhanced ion spectrum density.

Original languageEnglish
Pages (from-to)6423-6427
Number of pages5
JournalJournal of Applied Physics
Volume92
Issue number11
DOIs
Publication statusPublished - 2002 Dec 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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