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Prof. Mark Plimmer and Prof. Laurent Pitre from Laboratoire commun de métrologie LNE-Cnam visited TIPC
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Update time: 2018-09-03
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Invited by Public Technical Service and CAS Key Laboratory of Cryogenics and the TIPC Youth Forum, Prof. Mark Plimmer and Prof. Laurent Pitre from the Laboratoire commun de métrologie LNE-Cnam delivered a seminar entitled “Measurement of the absorption of condensable gases by photothermal deflection (mirage effect) and Comparison between a second sound thermometer and a melting curve thermometer from 0.8 K down to 20 mK” at TIPC on August 3rd.  

Prof. Mark Plimmer has been worked at Cnam in Paris since 1995. He obtained his D. Phil from Oxford University in 1989 and worked for many years on laser spectroscopy of atomic systems, especially hydrogen. He has worked at laboratories in the United States, Switzerland and of course, more recently China. Since 2010 he has been part of the Mass and Related Quantities group at LNE.  

Prof. Laurent Pitre is a Researcher at the Laboratoire commun de métrologie LNE-Cnam since 2000. He leads a team, which uses the quasi spherical resonator for the re-determination of the Boltzmann constant and the thermometry in the range of 4K to 300K. 

 

Prof. Mark Plimmer was giving a report. 

 

Prof. Laurent Pitre was giving a report. 

 

The group photo of speaker and the audience. 

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