activity
20092022
most citedAn accurate determination of the Avogadro constant by counting the atoms in a 28Si crystal

220 citations · 648 across the 20 of their papers we have counts for

collaborators

20 papers

physics.ins-det2022★ 6 cited

Three-dimensional model of a split-crystal x-ray and neutron interferometer

Carlo Paolo Sasso, Giovanni Mana, Enrico Massa

The observation of neutron interference by using a crystal interferometer having a separate analyser opens the way to the construction and operation of interferometers with vast ar…

physics.ins-det2022★ 9 cited

Neutron interference from a split-crystal interferometer

Hartmut Lemmel, Michael Jentschel, Hartmut Abele +5

We report the first successful operation of a neutron interferometer having a separate beam recombining crystal. We achieved this result at the neutron interferometry setup S18 at…

physics.optics2021★ 6 cited

Defocused travelling-fringes in scanning triple-Laue x-ray interferometry

Carlo P. Sasso, Giovanni Mana, Enrico Massa

The measurement of the silicon lattice parameter by a separate-crystal triple-Laue x-ray interferometer is a key step for the kilogram realisation by counting atoms. Since the meas…

physics.ins-det2021★ 4 cited

Measurement of the miscut angle in the determination of the Si lattice parameter

Carlo P. Sasso, Giovanni Mana, Enrico Massa

The measurement of the angle between the interferometer front mirror and the diffracting planes is a critical aspect of the Si lattice-parameter measurement by combined x-ray and o…

physics.data-an2020★ 36 cited

Model selection in the average of inconsistent data: an analysis of the measured Planck-constant values

Giovanni Mana, Enrico Massa, Maria Predescu

When the data do not conform to the hypothesis of a known sampling-variance, the fitting of a constant to a set of measured values is a long debated problem. Given the data, fittin…

physics.ins-det2020★ 6 cited

Wavefront errors in a two-beam interferometer

G Mana, E Massa, C P Sasso

The paper deals with the impact of wavefront errors, due to the optical aberrations of a two-beam interferometer, on the period of the travelling fringe observed by integrating the…