Add to ORKGAbstract: An experiment for the direct measurement of the atomic mass unit is under way by accumulating ions from an ion beam up to a weighable mass. The aim of this experiment is to find an alternative approach for the redefinition of the SI unit kilogram. In a recent experiment a mass of about 300 mg bismuth was accumulated and the atomic mass unit could be determined with a relative uncertainty better than 1.0×10-4
This review describes the efforts of several national metrology institutes to replace the present de...
Fundamental constants link seemingly different fields of physics and seemingly different quantities ...
The much anticipated overhaul of the International System of Units (SI) will result in new definitio...
Atomic mass measurements are essential for obtaining several of the fundamental constants. The most ...
The basic units of the SI system are defined with the fundamental physical constants with suitable s...
This paper concerns an international research project aimed at determining the Avogadro constant by ...
This paper concerns an international research project aimed at determining the Avogadro constant by ...
The definition of the kilogram, the unit of mass in the International System of Units (SI), has not ...
An improved attempt of several national metrology institutes to replace the present definition of th...
An improved attempt of several national metrology institutes to replace the present definition of th...
An improved attempt of several national metrology institutes to replace the present definition of th...
An improved attempt of several national metrology institutes to replace the present definition of th...
The goal of this paper is to draw attention to mass determinations at nominal values well below 1 µg...
International audienceThe ratio h/m u between the Planck constant and the unified atomic mass consta...
The Avogadro constant links the atomic and the macroscopic properties of matter. Since the molar Pla...
This review describes the efforts of several national metrology institutes to replace the present de...
Fundamental constants link seemingly different fields of physics and seemingly different quantities ...
The much anticipated overhaul of the International System of Units (SI) will result in new definitio...
Atomic mass measurements are essential for obtaining several of the fundamental constants. The most ...
The basic units of the SI system are defined with the fundamental physical constants with suitable s...
This paper concerns an international research project aimed at determining the Avogadro constant by ...
This paper concerns an international research project aimed at determining the Avogadro constant by ...
The definition of the kilogram, the unit of mass in the International System of Units (SI), has not ...
An improved attempt of several national metrology institutes to replace the present definition of th...
An improved attempt of several national metrology institutes to replace the present definition of th...
An improved attempt of several national metrology institutes to replace the present definition of th...
An improved attempt of several national metrology institutes to replace the present definition of th...
The goal of this paper is to draw attention to mass determinations at nominal values well below 1 µg...
International audienceThe ratio h/m u between the Planck constant and the unified atomic mass consta...
The Avogadro constant links the atomic and the macroscopic properties of matter. Since the molar Pla...
This review describes the efforts of several national metrology institutes to replace the present de...
Fundamental constants link seemingly different fields of physics and seemingly different quantities ...
The much anticipated overhaul of the International System of Units (SI) will result in new definitio...