Photon Emission from Solid Surfaces Irradiated with Highly Charged Ions

In the field of nuclear fusion technology, Er2O3 thin film is a candidate for the coating material of the blanket of thermonuclear fusion reactor. It is known that the luminescence of Er2O3 provides information on its crystallinity. We observed luminescence of Er2O3 during the irradiation with highl...

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Bibliographic Details
Published inJournal of the Vacuum Society of Japan Vol. 58; no. 4; pp. 147 - 149
Main Authors SAKURAI, Makoto, MIYAMOTO, Takahiro, SASAKI, Kouji, KATO, Daiji, SAKAUE, Hiroyuki A.
Format Journal Article
LanguageJapanese
Published The Vacuum Society of Japan 2015
Subjects
Charge
Charged ions
Ion sources
Irradiation
Kinetic energy
Luminescence
Nuclear reactor components
Thin films
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Summary:In the field of nuclear fusion technology, Er2O3 thin film is a candidate for the coating material of the blanket of thermonuclear fusion reactor. It is known that the luminescence of Er2O3 provides information on its crystallinity. We observed luminescence of Er2O3 during the irradiation with highly charged ions produced by an electron beam ion source (EBIS) as a function of charge state and kinetic energy of incident Ar ions. We found that the luminescence intensity non-linearly rises as the charge state increases and is independent of kinetic energy. This demonstrates that the luminescence of Er2O3 thin film arises from the potential energy of highly charged ions rather than the kinetic energy.
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ISSN:1882-2398
1882-4749
DOI:10.3131/jvsj2.58.147