Determination of the Boltzmann constant for the redefinition of the kelvin

Low-temperature determination of the Boltzmann constant by dielectric-constant gas thermometry

2012

Metrologia

Progress towards an accurate determination of the Boltzmann constant by Doppler spectroscopy

2011

New Journal of Physics

Measuring shell resonances of spherical acoustic resonators

2011

International Journal of Thermophysics

Fiber laser optical frequency standard at 1.54 µm

2011

Optics Express

Absolute frequency measurement of a water-stabilized diode laser at 1.384 µm by means of a fiber frequency comb

2011

Applied Physics B

Dimensional characterization of a quasispherical resonator by microwave and coordinate measurement techniques

2011

Metrologia

Outgassing of water vapour and its significance in experiments to determine the Boltzmann constant

2011

Metrologia

Measurement of the Boltzmann Constant kB Using a Quasi-Spherical Acoustic Resonator

2011

International Journal of Thermophysics

Progress in INRiM Experiment for the Determination of the Boltzmann Constant with a Quasi-spherical Resonator

2011

International Journal of Thermophysics

Determination of the Boltzmann constant by dielectric-constant gas thermometry

2011

Metrologia

Dielectric-Constant Gas-Thermometry Scale from 2.5 K to 36 K Applying 3He, 4He, and Neon in Different Temperature Ranges

2010

International Journal of Thermophysics

Absolute frequency stabilization of an extended-cavity diode laser against Doppler-free H217O absorption lines at 1.384 µm

2010

Optics Letters

Progress Towards an Acoustic/Microwave Determination of the Boltzmann Constant at LNE-INM/CNAM

2010

International Journal of Thermophysics

Construction and Start-up of a Large-Volume Thermostat for Dielectric-Constant Gas Thermometry

2010

International Journal of Thermophysics

On the theory of linear absorption line shapes in gases

2010

Comptes Rendus Physique

A determination of the Boltzmann constant from speed of sound measurements in helium at a single thermodynamic state

2010

Metrologia

Preparation of argon Primary Measurement Standards for the calibration of ion current ratios measured in argon

2010

International Journal of Mass Spectrometry

Dielectric-Constant Gas-Thermometry Measuring System for the Determination of the Boltzmann Constant at PTB

2010

International Journal of Thermophysics

Characterization of the volume and shape of quasi-spherical resonators using coordinate measuring machines

2010

Metrologia

Modeling Steady Acoustic Fields Bounded in Cavities with Geometrical Imperfections

2010

International Journal of Thermophysics

Determination of the Boltzmann Constant by Laser Spectroscopy as a Basis for Future Measurements of the Thermodynamic Temperature

2010

International Journal of Thermophysics

Assessment of uncertainty in the determination of the Boltzmann constant by an acoustic technique

2010

International Journal of Thermophysics

An Apparatus Based on a spehrical resonator for measuring the speed of sound in gases and for determining the Boltzmann constant

2010

International Journal of Thermophysics

Shell Perturbations of an acoustic thermomether dteermined from speed of sound in gas mixtures

2010

International Journal of Thermophysics

Acoustic Resonator Experiments at the Triple Point of Water: First Results for the Boltzmann Constant and Remaining Challenges

2010

International Journal of Thermophysics

Waveguide effects on quasispherical cavity resonators

2010

Measurement Science and Technology

Design and Capabilities of the Temperature Control System for the Italian Experiment Based on Precision Laser Spectroscopy for a New Determination of the Boltzmann Constant

2010

International Journal of Thermophysics

An improved acoustic method for the determination of the Boltzmann constant at LNE-INM/CNAM

2009

Comptes Rendus Physique

Characterization of condenser microphones under different environmental conditions for accurate speed of sound measurements with acoustic resonators

2009

Review of Scientific Instruments

Acoustic field in a quasi-spherical resonator: Unified perturbation model

2009

Journal of the Acoustical Society of America

Helium virial coefficients - a comparison between new highly accurate theoretical and experimental data

2009

Metrologia

The international Boltzmann project – the contribution of the PTB

2009

Comptes Rendus Physique

The line shape problem in the near-infrared spectrum of self-colliding CO2 molecules: Experimental investigation and test of semiclassical models

2009

Journal of Chemical Physics

On the determination of the Boltzmann constant by means of precision molecular spectroscopy in the near-infrared

2009

Comptes Rendus Physique

Final result of the geometrical calibration of the pressure balances to be used for the new determination of the Boltzmann constant

2009

Key Engineering Materials

Measurement of the Boltzmann constant by the Doppler broadening technique at a 3.8×10-5 accuracy level

2009

Comptes Rendus Physique

Primary Gas Thermometry by Means of Laser-Absorption Spectroscopy: Determination of the Boltzmann Constant

2008

Physical Review Letters

Primary Dielectric-Constant Gas Thermometry in the Range from 2.4K at PTB

2008

International Journal of Thermophysics

Form measurements by optical and tactile scanning

2008

Proceedings Fifth International Symposium on Instrumentation Science and Technology

Dimensional calibration techniques for pressure for pressure balances balances to be used in the new determination of the Boltzmann constant

2008

Proceedings I-CIMMEC, 1st International Congress on Mechanical Metrology

Molar polarizability change in gaseous 4He far from the condensation possibly due to the creation of bosonic clusters

2008

Europhysics Letters

Towards 7MPa Pressure Standards with 1.10-6 Uncertainty

2007

MAPAN - Journal of Metrology Society of India

An approach to the evaluation of dimensional measurements on pressure-measuring pistoncylinder assemblies

2007

Proceedings IMEKO 20th TC3, 3rd TC 16 and 1st TC22 International Conference

Direct Determination of the Boltzmann Constant by an Optical Method

2007

Physical Review Letters

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