This file was created by the TYPO3 extension bib --- Timezone: CEST Creation date: 2024-04-25 Creation time: 21-26-52 --- Number of references 7 report PTB-Th-10 2019 PTB-Th-10 Proceedings of the final pres2vac workshop held at RISE, Borås, Sweden, May 16-17, 2018 PTB-Report 978-3-95606-466-1 1614-9327 WladimirSabuga (Hrsg.) report PTB-Th-9 2017 PTB-Th-9 Dissertation PTB-Report 978-3-95606-307-7 1614-9327 Desoky Salama AhmedAhmed report PTB-Th-8 2016 PTB-Th-8 Dissertation PTB-Report 978-3-95606-287-2 1614-9327 StephanKrenek report PTB-Th-40 2013 PTB-Th-4 Pt. 1: Protocol PTB-Report 978-3-9560604-6-5 1614-0327 LutzWoiber BerndFellmuth report 20763 2007 PTB-Th-3 17 New dielectric-constant gas thermometry (DCGT) measurements were performed at PTB in the temperature range from 2.4 K to 26 K in order to establish a temperature scale with reduced uncertainty. The progress concerning the measurement of capacitance changes, temperature and pressure compared with the results published in 1996 are described in detail. The work done is the first step on the way to determine the Boltzmann constant at the triple point of water. Talks of the 221st PTB Seminar "Workshop on Progress in Determining the Boltzmann Constant" held on 19th October 2006 in Berlin ; (PTB-Bericht PTB-Th-3) Fellmuth, Bernd; 7.4, Temperatur, PTB-Berlin Fischer, Joachim; 7.4, Temperatur, PTB-Berlin PTB-Report ISBN 978-3-86509-684-5 ; ISSN 1614-0327 JoachimFischer BerndFellmuth report 17595 2005 PTB-Th-2 37 The establishment of the ultra-low temperature scale at PTB in the range from 1 mK to 1 K, and its transfer to the .sup.3.nosup.He melting pressure equation, is described. The temperature scale, which has been constructed with magnetic thermometry to obtain a smooth pressure-temperature relation over a wide range, ultimately relies on primary noise thermometry. The construction and verification of the scale is discussed, and a comparison with other temperature scales is presented. PTB-96, the ultra-low temperature scale of PTB ; (PTB-Bericht PTB-Th-2) Physikalisch-Technische Bundesanstalt PTB-Report ISBN 3-86509-310-8 GerhardSchuster AlbrechtHoffmann DieterHechtfischer report 10702 2004 PTB-Th-1 36 The construction of the temperature scale PTB-96 below 15 mK relies mainly on the Curie law of platinum NMR. Therefore the validity of the Curie law is critically reviewed with respect to the properties of platinum including the effect of magnetic impurities and radiation damping. Equipment and procedures are described that were employed to limit potential degradations of the Curie law. Measurements with other thermometers supporting the NMR results are presented. An uncertainty budget concerning the actual material, instrumentation, and signal processing is given. Platinum NMR thermometry below 0.1 K ; (PTB-Bericht PTB-Th-1) Physikalisch-Technische Bundesanstalt PTB-Report ISBN 3-86509-197-0 DieterHechtfischer GerhardSchuster