Design and Testing of Low Temperature Part of an UHV ? SPM Microscope

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F14%3A00434011" target="_blank" >RIV/68081731:_____/14:00434011 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Design and Testing of Low Temperature Part of an UHV ? SPM Microscope
Original language description
We have developed low temperature part of an ultra high vacuum scanning probe microscope (UHV-SPM) working at variable temperature within the range from 20 K to 700 K. To achieve the required temperature range, a flow cooling system using cryogenic helium (approximately 5 K) as a coolant was designed. The system consists of a flow cryostat and a flexible low-loss transfer line connecting a Dewar vessel with the flow cryostat. We have also tested liquid nitrogen (approximately 77 K) as an alternative low-cost coolant. Using nitrogen, the microscope can operate at temperatures of about 100 K and higher. As the flow of the coolant through the cryostat can cause thermally induced two-phase flow fluctuations resulting in instability in temperatures, preliminary tests were done in order to find ways of avoiding the temperature oscillations and optimising the cooling process.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Cryogenics 2014. The 13th IIR International Conference Proceedings
ISBN
978-2-36215-002-9
ISSN
0151-1637
e-ISSN
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Number of pages
6
Pages from-to
324-329
Publisher name
Icaris
Place of publication
Praha
Event location
Praha
Event date
Apr 7, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000346089100052

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