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Original title:
Effect of thermal radiation on low temperature measurement for various types of temperature sensor installations
Authors: Urban, Pavel ; Hanzelka, Pavel ; Králík, Tomáš ; Vlček, Ivan ; Srnka, Aleš
Document type: Papers
Conference/Event: Cryogenics 2017 /14./. IIR International Conference, Dresden (DE), 20170515
Year: 2017
Language: eng
Abstract: We investigated an effect of thermal radiation (300 K) on precision of low temperature measurement of a sample holder (or sample) in an UHV SEM/SPM microscope working at range down to 20 K for various ways of temperature sensor mounting. We designed a special copper casing for installation of Lake Shore\ntemperature sensors (CernoxTM and Si diodes) encapsulated in SD packages. The sensor body is attached direct to the casing using indium solder. The current leads pertaining to the sensor are thermally anchored but electrically insulated from the casing. Quality of sensors installation in the casing was tested for various ways of mounting on a cooled plate. Insufficient thermal anchoring of electrical wires and thermal shielding were imitated. Comparative measurement was also performed with sensors in SD package mounted without\ncasing. The experiments proved that our special design of temperature sensors casing is adequate for intended application of temperature measurement of sample holder in UHV SEM/SPM microscope. In contrary, measurement precision of unprotected sensors was absolutely unsuitable.
Keywords: low temperature; temperature sensor; thermal radiation
Project no.: LO1212 (CEP), TE01020233 (CEP)
Funding provider: GA MŠk, GA TA ČR
Host item entry: 14th Cryogenics 2017. IIR International Conference. Proceedings, ISBN 978-2-36215-022-7, ISSN 0151-1637
Institution: Institute of Scientific Instruments AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0274398
Permalink: http://www.nusl.cz/ntk/nusl-364661
The record appears in these collections:
Research > Institutes ASCR > Institute of Scientific Instruments
Conference materials > Papers
Authors: Urban, Pavel ; Hanzelka, Pavel ; Králík, Tomáš ; Vlček, Ivan ; Srnka, Aleš
Document type: Papers
Conference/Event: Cryogenics 2017 /14./. IIR International Conference, Dresden (DE), 20170515
Year: 2017
Language: eng
Abstract: We investigated an effect of thermal radiation (300 K) on precision of low temperature measurement of a sample holder (or sample) in an UHV SEM/SPM microscope working at range down to 20 K for various ways of temperature sensor mounting. We designed a special copper casing for installation of Lake Shore\ntemperature sensors (CernoxTM and Si diodes) encapsulated in SD packages. The sensor body is attached direct to the casing using indium solder. The current leads pertaining to the sensor are thermally anchored but electrically insulated from the casing. Quality of sensors installation in the casing was tested for various ways of mounting on a cooled plate. Insufficient thermal anchoring of electrical wires and thermal shielding were imitated. Comparative measurement was also performed with sensors in SD package mounted without\ncasing. The experiments proved that our special design of temperature sensors casing is adequate for intended application of temperature measurement of sample holder in UHV SEM/SPM microscope. In contrary, measurement precision of unprotected sensors was absolutely unsuitable.
Keywords: low temperature; temperature sensor; thermal radiation
Project no.: LO1212 (CEP), TE01020233 (CEP)
Funding provider: GA MŠk, GA TA ČR
Host item entry: 14th Cryogenics 2017. IIR International Conference. Proceedings, ISBN 978-2-36215-022-7, ISSN 0151-1637
Institution: Institute of Scientific Instruments AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0274398
Permalink: http://www.nusl.cz/ntk/nusl-364661
The record appears in these collections:
Research > Institutes ASCR > Institute of Scientific Instruments
Conference materials > Papers
Record created 2017-10-04, last modified 2021-11-24