Johnson Noise Thermometry Measurement of the Boltzmann Constant with a 200 Ohm Sense Resistor
Alessio Pollarolo, Tae H. Jeong, Samuel Benz, Horst Rogalla
In 2010 NIST measured the Boltzmann constant k by use of an electronic technique that measured the Johnson noise of a 100 Ohm resistor at the triple point of water (TPW). The NIST Johnson noise thermometry (JNT) system used as a reference a voltage waveform that was synthesized with a quantum voltage noise source (QVNS) that consisted of pulse-driven arrays of Josephson-junctions. In this paper, we attempt to reproduce the previous measurement of k by repeating the JNT measurement with a 200 Ohm sense resistor and appropriately modified QVNS circuit and waveform. Preliminary results show agreement with the previous value within the measurement uncertainty.
Conference on Precision Electromagnetic Measurements Conference Digest
July 1-6, 2012
National Harbor, MD, US
Conference on Precision Electromagnetic Measurements
, Jeong, T.
, Benz, S.
and Rogalla, H.
Johnson Noise Thermometry Measurement of the Boltzmann Constant with a 200 Ohm Sense Resistor, Conference on Precision Electromagnetic Measurements Conference Digest, National Harbor, MD, US, [online], https://doi.org/10.1109/CPEM.2012.6250878, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=910628
(Accessed December 8, 2023)