| Zugriffsnummer | 12894 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Upgrading scientific capabilities of the neutron interferometer in NPI Rez |
| Autor(in); Institution |
Vr.aacute.na, M.; Nuclear Physics Institute, NPI, Rez near Prague, CZECH REPUBLIC
Mikula, P.; Nuclear Physics Institute, NPI, Rez near Prague, CZECH REPUBLIC
Luk.aacute.s, P.; Nuclear Physics Institute, NPI, Rez near Prague, CZECH REPUBLIC
Ioffe, A.; University of Missouri-Columbia, Department of Physics and Astronomy, Columbia, Missouri, USA
Rauch, H.; Atominstitut der Österreichischen Universitäten, Wien, AUSTRIA
Wagner, Volker; Q.203, Festkörperphysik, PTB-Braunschweig
Nistler, Wolfgang; Q.203, Festkörperphysik, PTB-Braunschweig
|
| Quelle/Jahr | Physica B: 276-278 (2000), 172 - 173 |
| ISSN | 0921-4526 |
| Freie Schlagworte | Neutron interferometry ; Scattering length |
| Zusammenfassung | Recently, the neutron interferometer set-up installed at NPI Rez has been reconstructed in order to improve the quality of the experimental results and to enlarge its flexibility for solving a wider range of physical problems. A new sample holder permits to position, to rotate in a horizontal plane and tilt the sample iin both beams inside the interferometer. The upgraded interferometer facility was tested by measuring the very sensitive coherent scattering length of Si performed by a nondispersive phase difference method. The result of this experiment is in very good agreement with the results obtained from the measurements carried out in HMI Berlin and NIST Gaithersburg. It shows that the coherent scattering length can be measured using our instrument with a relative uncertainty of 0.002%. |
