Auクラスター一次イオン源を用いたTOF-SIMS測定における二次イオン強度増大効果

書誌事項

タイトル別名
  • Enhancement of Secondary Ion Intensities from Polymers in the TOF-SIMS Analysis using Gold Cluster Ions
  • Au クラスター 1ジ イオン ゲン オ モチイタ TOF SIMS ソクテイ ニ オケル 2ジ イオン キョウド ゾウダイ コウカ

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抄録

Enhancement of the secondary ion intensity in the TOF-SIMS spectra obtained by Au+ and Au3+ bombardment was investigated in comparison with Ga+ excitation using polymer samples with different molecular weight distributions. Since the polymer samples used in this experiment have wide molecular weight distributions, the advantages of a gold cluster primary ion source over a monoatomic ion source could systematically be evaluated. It was found that a Au primary ion source for a TOF-SIMS instrument has advantages in such terms as (1) the mass effect of the monoatomic primary ion, i.e., Au+ vs. Ga+, (2) the cluster primary ion effect of Au3+ compared with Au+ and Ga+, and (3)decrease in the degree of fragmentation by usage of a cluster primary ion beam compared with a monoatomic ion beam.

収録刊行物

  • 表面科学

    表面科学 27 (9), 518-522, 2006

    公益社団法人 日本表面科学会

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