Upgrading scientific capabilities of the neutron interferometer in NPI Řež

0185152 - UJF-V 20000326 RIV NL eng J - Článek v odborném periodiku
Vrána, Miroslav - Mikula, Pavol - Lukáš, Petr - Ioffe, A. - Rauch, H. - Wagner, V. - Nistler, W.
Upgrading scientific capabilities of the neutron interferometer in NPI Řež.
Physica B-Condensed Matter. 276/278, - (2000), s. 172-173. ISSN 0921-4526. E-ISSN 1873-2135.
[ECNS`99. Budapest, 01.09.1999-04.09.1999]
Grant CEP: GA ČR GV202/97/K038; GA AV ČR IAA1048003; GA AV ČR KSK1048601
Kód oboru RIV: BG - Jaderná, atomová a mol. fyzika, urychlovače
Impakt faktor: 0.893, rok: 2000

Recently, the neutron interferometer set-up installed at NPI Řež 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 newsample holder permits to position, to rotate in a horizontal plane and tilt the sample in both beams inside the interferometer. The upgraded interferometer facility was tested by measuring the very sensitive coherent scattering length of Si perfomed 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 thecoherent scattering length can be measured using our instrument with a relative uncertainty of 0.002
Trvalý link: http://hdl.handle.net/11104/0081568