Abstract
Hot iridium filaments for the production of atomic oxygen have been characterized by two complementary techniques—gas phase line-of-sight mass spectrometry and surface trapping experiments using a gold substrate. It is demonstrated by both techniques that Ir is detected as a subliming species prior to detectable atomic oxygen production. This calls into question previous studies which have employed iridium as a thermal source of pure atomic oxygen for research purposes.
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More From: Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films
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