Monte Carlo investigation of refractive index gas thermometry uncertainties

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ConferenceThe Royal Society "Towards implementing the new kelvin" meeting, May 18-19 2015, Chicheley, U.K.
AbstractRefractive Index Gas Thermometry (RIGT) is a primary thermometry technique where the thermodynamic temperature of a working gas is determined via microwave resonance measurements of the refractive index of the gas. Conversion from refractive index to gas density to thermodynamic temperature is facilitated by the use of virial expansions. Mote Carlo calculations will be presented for a RIGT arrangement employing a quasi-spherical copper resonator and helium as the working gas. Particular focus will be given to the sensitivity of the determined thermodynamic temperature to variations in experimentally-relevant parameters such as the gas pressure, compressibility of the resonator, thermal stability of the apparatus, and chosen virial coefficient values.
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AffiliationMeasurement Science and Standards; National Research Council Canada
Peer reviewedNo
NPARC number21276428
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Record identifier9ff36c43-32e1-4b5a-9bab-dd7a5816d48e
Record created2015-10-13
Record modified2016-05-09
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