| Zugriffsnummer | 39063 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | A new 28Si single crystal: counting the atoms for the new kilogram definition |
| Autor(in); Institution |
Bartl, Guido; 5.4, Interferometrie an Maßverkörperungen, PTB-Braunschweig
Becker, Peter; PTB-Braunschweig, retired staff
Beckhoff, Burkhard; 7.2, Kryophysik und Spektrometrie, PTB-Berlin
Bettin, Horst; 1.8, Masse - Darstellung der Einheit, PTB-Braunschweig
Beyer, Edyta; 1.8, Masse - Darstellung der Einheit, PTB-Braunschweig
Borys, Michael; 1.8, Masse - Darstellung der Einheit, PTB-Braunschweig
Busch, Ingo; 5.1, Oberflächenmesstechnik, PTB-Braunschweig
Cibik, Levent; 7.1, Radiometrie mit Synchrotronstrahlung, PTB-Berlin
D'Agostino, Giancarlo; Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, ITALY
Darlatt, Erik; 7.1, Radiometrie mit Synchrotronstrahlung, PTB-Berlin
Di Luzio, M.; Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, ITALY; University of Pavia, Department of Chemistry, Pavia, ITALY
Fujii, K.; National Metrology Institute of Japan (NMIJ), Tsukuba, Ibaraki, JAPAN
Fujimoto, H.; National Metrology Institute of Japan (NMIJ), Tsukuba, Ibaraki, JAPAN
Fujita, K.; National Metrology Institute of Japan (NMIJ), Tsukuba, Ibaraki, JAPAN
Kolbe, Michael; 7.1, Radiometrie mit Synchrotronstrahlung, PTB-Berlin
Krumrey, Michael; 7.1, Radiometrie mit Synchrotronstrahlung, PTB-Berlin
Kuramoto, N.; National Metrology Institute of Japan (NMIJ), Tsukuba, Ibaraki, JAPAN
Massa, E.; Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, ITALY
Mecke, Michael; 1.8, Masse - Darstellung der Einheit, PTB-Braunschweig
Mizushima, S.; National Metrology Institute of Japan (NMIJ), Tsukuba, Ibaraki, JAPAN
Müller, Matthias; 7.1, Radiometrie mit Synchrotronstrahlung, PTB-Berlin
Narukawa, T.; National Metrology Institute of Japan (NMIJ), Tsukuba, Ibaraki, JAPAN
Nicolaus, Arnold; 5.4, Interferometrie an Maßverkörperungen, PTB-Braunschweig
Pramann, Axel; 3.1, Metrologie in der Chemie, PTB-Braunschweig
Rauch, Daniela; 1.8, Masse - Darstellung der Einheit, PTB-Braunschweig
Rienitz, Olaf; 3.1, Metrologie in der Chemie, PTB-Braunschweig
Sasso, C. P.; Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, ITALY
Stopic, A.; Australian Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, NSW, AUSTRALIA
Stosch, Rainer; 3.1, Metrologie in der Chemie, PTB-Braunschweig
Waseda, A.; National Metrology Institute of Japan (NMIJ), Tsukuba, Ibaraki, JAPAN
Wundrack, Stefan; 3.1, Metrologie in der Chemie, PTB-Braunschweig
Zhang, L.; National Metrology Institute of Japan (NMIJ), Tsukuba, Ibaraki, JAPAN
Zhang, X. W.; Chinese Academy of Science, Institute of High Energy Physics (IHEP), Beijing, People's Republic of China
|
| Quelle/Jahr | Metrologia: 54 (2017), 693 - 715 |
| ISSN | 0026-1394 (PRINT) ; 1681-7575 (ONLINE) |
| DOI | |
| Verlag | Bristol: IOP Publ. |
| Freie Schlagworte | Avogadro constant ; kilogram ; Planck constant ; enriched silicon ; molar mass ; surface characterisation ; interferometry |
| Zusammenfassung | A new single crystal from isotopically enriched silicon was used to determine the Avogadro constant NA by the x-ray-crystal density method. The new crystal, named Si28-23Pr11, has a higher enrichment than the former "AVO28" crystal allowing a smaller uncertainty of the molar mass determination. Again, two 1 kg spheres were manufactured from this crystal. The crystal and the spheres were measured with improved and new methods. One sphere, Si28kg01a, was measured at NMIJ and PTB with very consistent results. The other sphere, Si28kg01b, was measured only at PTB and yielded nearly the same Avogadro constant value. The mean result for both 1 kg spheres is NA = 6.022 140 526(70) × 1023 mol-1 with a relative standard uncertainty of 1.2 × 10-8 This value deviates from the Avogadro value published in 2015 for the AVO28 crystal by about 3.9(2.1) × 10-8. Possible reasons for this difference are discussed and additional measurements are proposed. |
| Kostenfreier Zugang | Open Access Hybrid |
| Rechteinformation | CC BY 3.0 ; Creative Commons Attribution 3.0 License |
Zitierung
Bartl, G., Becker, P., Beckhoff, B., Bettin, H., Beyer, E., Borys, M., Busch, I., Cibik, L., D'Agostino, G., Darlatt, E., Di Luzio, M., Fujii, K., Fujimoto, H., Fujita, K., Kolbe, M., Krumrey, M., Kuramoto, N., Massa, E., Mecke, M., Mizushima, S., Müller, M., Narukawa, T., Nicolaus, A., Pramann, A., Rauch, D., Rienitz, O., Sasso, C. P., Stopic, A., Stosch, R., Waseda, A., Wundrack, S., Zhang, L., & Zhang, X. W. (2017). A new ²⁸Si single crystal: counting the atoms for the new kilogram definition. Metrologia, 54, 693–715. https://doi.org/10.1088/1681-7575/aa7820