A method for the direct measurement of small energy losses of relativistic particles

1965 ◽  
Vol 86 (3) ◽  
pp. 674-676
Author(s):  
D K Aitken ◽  
R E Jennings ◽  
R N F Walker
Keyword(s):  
Direct Measurement ◽  
Energy Losses ◽  
Small Energy ◽  
Relativistic Particles

scholarly journals Analysis of the geometry and contact density of globoid gearing

2020 ◽  
Vol 329 ◽  
pp. 03008
Author(s):  
Aleksandr Vyatkin
Keyword(s):  
Numerical Methods ◽  
Load Capacity ◽  
High Load ◽  
Design Stage ◽  
Energy Losses ◽  
Technological Parameters ◽  
Contact Density ◽  
Small Energy ◽  
Worm Gears ◽  
High Load Capacity

Globoid worm gears have been widely applied in a range of technological branches in which other types of worm gears are less effective. The main functional indicators which facilitated their popularity include high load capacity and durability, low vibroactivity and small energy losses. As the experience of application and the results of the study of globoid worm gears showed, the level of operational properties of globoid gears is higher than that of the others only if the gearing and technological parameters of their manufacturing are optimally chosen during the design stage. This paper describes a method for estimating the gearing parameters of a globoid gear with an account of the geometry of the elements (the geometry of the teeth of the wheel and the worm thread), namely the calculation of the gap fields in the globoid gearing by means of numerical methods.

scholarly journals Eine Verallgemeinerung der Schrödingerschen Wellenmechanik in relativistische Gültigkeitsbereiche / A Generalisation of Schrödinger’s Wave Mechanics for Relativistic Regions of Validity

1973 ◽  
Vol 28 (2) ◽  
pp. 216-221
Author(s):  
Erwin Kasper
Keyword(s):  
Wave Equation ◽  
Particle Density ◽  
Time Derivative ◽  
Linear Partial Differential Equation ◽  
Wave Mechanics ◽  
Small Energy ◽  
First Order ◽  
Spin Effects ◽  
Classical Wave ◽  
Relativistic Particles

A scalar wave equation is derived which can be applied to the relativistic motion of charged particles in slowly varying electromagnetic fields and which is valid in a sufficiently small energy interval, if spin effects can be neglected. Since this wave equation is a linear partial differential equation of first order in the time derivative but of second order in the space derivatives, it is not relativistically invariant. But it is possible to define a positively definite particle density from which a conservation law can be derived. The main success of this theory is a very simple generalisation of the Schrödinger theory of classical wave mechanics in such a way that it can be also applied to relativistic particles.

Spin Polarized Inelastic Electron Scattering From Ni (110)

1989 ◽  
Vol 151 ◽  
Author(s):  
H. Hopster ◽  
D. L. Abraham ◽  
D. P. Pappas
Keyword(s):  
Electron Scattering ◽  
Low Energy ◽  
Energy Losses ◽  
Inelastic Electron ◽  
Small Energy ◽  
Loss Mechanism ◽  
Spin Asymmetries ◽  
Spin Polarized ◽  
Low Energy Electron ◽  
Exchange Scattering

ABSTRACTThe spin dependent energy loss mechanisms in low-energy electron scattering from a ferromagnetic Ni(110) surface are studied. It is shown that exchange scattering can be the dominant loss mechanism for small energy losses. The energy-, angle and temperature dependence of spin asymmetries are studied in detail.

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