A bakeable, demountable field ion microscope with a continuous transfer liquid helium cryostat

D. G. Ast; D. N. Seidman

doi:10.1088/0022-3735/2/7/305

A bakeable, demountable field ion microscope with a continuous transfer liquid helium cryostat

D. G. Ast^*, D. N. Seidman

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

A stainless field ion microscope head which is bakeable to 250°C and completely demountable is described, and the operational characteristics are presented. The microscope employs the continuous flow technique to cool the specimen cryogenically between 4·2 and 78°K. The liquid helium consumption varies from 0·85 l h^-1 to 0·133 l h ^-1 between 11·7 and 34·8°K, with a pressure of 2·5 mtorr helium inside the microscope. The field ion microscope head is particularly well suited for hydrogen promotion experiments. An example of a gold specimen imaged by the latter technique in the present microscope is given.

Original language	English (US)
Article number	305
Pages (from-to)	575-578
Number of pages	4
Journal	Journal of Physics E: Scientific Instruments
Volume	2
Issue number	7
DOIs	https://doi.org/10.1088/0022-3735/2/7/305
State	Published - 1969

ASJC Scopus subject areas

General Engineering
Instrumentation
General Materials Science
General Physics and Astronomy

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abstract = "A stainless field ion microscope head which is bakeable to 250°C and completely demountable is described, and the operational characteristics are presented. The microscope employs the continuous flow technique to cool the specimen cryogenically between 4·2 and 78°K. The liquid helium consumption varies from 0·85 l h-1 to 0·133 l h -1 between 11·7 and 34·8°K, with a pressure of 2·5 mtorr helium inside the microscope. The field ion microscope head is particularly well suited for hydrogen promotion experiments. An example of a gold specimen imaged by the latter technique in the present microscope is given.",

author = "Ast, {D. G.} and Seidman, {D. N.}",

year = "1969",

doi = "10.1088/0022-3735/2/7/305",

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AU - Ast, D. G.

AU - Seidman, D. N.

PY - 1969

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AB - A stainless field ion microscope head which is bakeable to 250°C and completely demountable is described, and the operational characteristics are presented. The microscope employs the continuous flow technique to cool the specimen cryogenically between 4·2 and 78°K. The liquid helium consumption varies from 0·85 l h-1 to 0·133 l h -1 between 11·7 and 34·8°K, with a pressure of 2·5 mtorr helium inside the microscope. The field ion microscope head is particularly well suited for hydrogen promotion experiments. An example of a gold specimen imaged by the latter technique in the present microscope is given.

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A bakeable, demountable field ion microscope with a continuous transfer liquid helium cryostat

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