TEMPERATURE CONTROL DIAGNOSTICS FOR SAMPLE ENVIRONMENTS

In a scientific laboratory setting, standard equipment such as cryocoolers are often used as part of a custom 'sample environment'system designed to regulate temperature over a wide range. The end user may be more concerned with precise sample temperature control than with base temperature...

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Bibliographic Details
Published in:Transactions of the Cryogenic Engineering Conference 2009-07, Vol.1218, p.1647-1651
Main Authors: Santodonato, L J, Walker, L M H, Church, A J, Redmon, C M
Format: Article
Language:English
Subjects:
Cooling systems
Cryogenics
Devices
Diagnostic systems
End users
Inventories
Magnetic fields
Stockpiling
Temperature control
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Summary:In a scientific laboratory setting, standard equipment such as cryocoolers are often used as part of a custom 'sample environment'system designed to regulate temperature over a wide range. The end user may be more concerned with precise sample temperature control than with base temperature. Cryogenic systems, however, tend to be specified mainly in terms of cooling capacity and base temperature. Technical staff at scientific user facilities (and perhaps elsewhere) often wonder how to best specify and evaluate temperature control capabilities. Here we describe test methods and give results obtained at a user facility that operates a large sample environment inventory. Although this inventory includes a wide variety of temperature, pressure, and magnetic field devices, the present work focuses on cryocooler-based systems.
ISSN:0094-243X