A simple continuous transfer liquid helium cryostat for an ultra-high vacuum field ion microscope

D. N. Seidman; R. M. Scanlan; D. L. Styris; J. W. Bohlen

doi:10.1088/0022-3735/2/6/303

A simple continuous transfer liquid helium cryostat for an ultra-high vacuum field ion microscope

D. N. Seidman^*, R. M. Scanlan, D. L. Styris, J. W. Bohlen

^*Corresponding author for this work

Materials Science and Engineering

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

25 Scopus citations

Abstract

A simple continuous transfer liquid helium cryostat for an ultra-high vacuum field ion microscope has been constructed. In this cryostat the liquid helium is continuously transferred from a conventional 30 or 50 1 storage vessel, employing a standard transfer line, to a small reservoir which is in direct contact with the field ion microscope specimen holder. The enthalpy of the outgoing cold helium gas is used to cool a copper radiation shield which surrounds both the specimen holder and the reservoir section of the cryostat. The economical operating temperature range of this cryostat is 8°K to room temperature with a temperature stability of better than ±0·1 degK over most of this temperature range. Details of construction and the operational characteristics are presented.

Original language	English (US)
Article number	303
Pages (from-to)	473-476
Number of pages	4
Journal	Journal of Physics E: Scientific Instruments
Volume	2
Issue number	6
DOIs	https://doi.org/10.1088/0022-3735/2/6/303
State	Published - Dec 1 1969

ASJC Scopus subject areas

Instrumentation
Physics and Astronomy(all)
Engineering(all)

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title = "A simple continuous transfer liquid helium cryostat for an ultra-high vacuum field ion microscope",

abstract = "A simple continuous transfer liquid helium cryostat for an ultra-high vacuum field ion microscope has been constructed. In this cryostat the liquid helium is continuously transferred from a conventional 30 or 50 1 storage vessel, employing a standard transfer line, to a small reservoir which is in direct contact with the field ion microscope specimen holder. The enthalpy of the outgoing cold helium gas is used to cool a copper radiation shield which surrounds both the specimen holder and the reservoir section of the cryostat. The economical operating temperature range of this cryostat is 8°K to room temperature with a temperature stability of better than ±0·1 degK over most of this temperature range. Details of construction and the operational characteristics are presented.",

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AU - Seidman, D. N.

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AU - Styris, D. L.

AU - Bohlen, J. W.

PY - 1969/12/1

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N2 - A simple continuous transfer liquid helium cryostat for an ultra-high vacuum field ion microscope has been constructed. In this cryostat the liquid helium is continuously transferred from a conventional 30 or 50 1 storage vessel, employing a standard transfer line, to a small reservoir which is in direct contact with the field ion microscope specimen holder. The enthalpy of the outgoing cold helium gas is used to cool a copper radiation shield which surrounds both the specimen holder and the reservoir section of the cryostat. The economical operating temperature range of this cryostat is 8°K to room temperature with a temperature stability of better than ±0·1 degK over most of this temperature range. Details of construction and the operational characteristics are presented.

AB - A simple continuous transfer liquid helium cryostat for an ultra-high vacuum field ion microscope has been constructed. In this cryostat the liquid helium is continuously transferred from a conventional 30 or 50 1 storage vessel, employing a standard transfer line, to a small reservoir which is in direct contact with the field ion microscope specimen holder. The enthalpy of the outgoing cold helium gas is used to cool a copper radiation shield which surrounds both the specimen holder and the reservoir section of the cryostat. The economical operating temperature range of this cryostat is 8°K to room temperature with a temperature stability of better than ±0·1 degK over most of this temperature range. Details of construction and the operational characteristics are presented.

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A simple continuous transfer liquid helium cryostat for an ultra-high vacuum field ion microscope

Abstract

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