Results 271 to 280 of about 8,968,637 (317)
Some of the next articles are maybe not open access.
AIP Conference Proceedings, 1978
This paper describes measurements, made at TRIUMF, of triple scattering parameters in proton‐proton and neutron‐proton elastic scattering.
openaire +1 more source
This paper describes measurements, made at TRIUMF, of triple scattering parameters in proton‐proton and neutron‐proton elastic scattering.
openaire +1 more source
A new multiple scattering parameter
Il Nuovo Cimento, 1955A new parameter is proposed for the characterization of the multiple scattering observed in tracks of charged particles. This parameter is the mean value of the cosine of a constant times the projected scattering angle. The theoretical relation between the mean value of the cosine parameter and the momentum-velocity productpβ of the particle can be ...
H. J. Lipkin +2 more
openaire +1 more source
2018
S-parameters are another means for describing multi-port networks. The scattering matrix ties port reflected/transmitted waves to incident ones. The waves have units of square root of power and have direct relations to terminal voltages and current.
openaire +1 more source
S-parameters are another means for describing multi-port networks. The scattering matrix ties port reflected/transmitted waves to incident ones. The waves have units of square root of power and have direct relations to terminal voltages and current.
openaire +1 more source
Scattering Parameter Characterization
2015Recent developments of the performance of OTFTs in the past few years have led to a renewed interest in characterizing their AC electrical properties using a self-contained method.
openaire +1 more source
Four-terminal-pair impedances and scattering parameters
Measurement Science and Technology, 2003The calibration of modern automatic RLC bridges requires a set of impedance standards. Each standard needs in turn a calibration, i.e. the knowledge of its four-terminal-pair impedance Z4TP at frequencies up to 10–100 MHz—frequencies beyond the capabilities of standard metrological setups for impedance traceability (transformer bridges). It is possible
CALLEGARO, LUCA, DURBIANO F.
openaire +2 more sources
Radar Measurements and Scatterer Parameters
2013Basic knowledge on the theory of electromagnetic wave scattering, radar measurements, and methods of estimating the scatterer parameters are the theme of this chapter. The main scatterers concerned are water and ice particles, and Bragg scatterers generated by perturbations of radar refractive index due to turbulence of the atmosphere. First, basics of
Shoichiro Fukao, Kyosuke Hamazu
openaire +1 more source
Low-energy parameters in nonrelativistic scattering theory
Annals of Physics, 1983The authors consider the low-energy behaviour of Schrödinger operators with short-range or Coulomb-type plus short-range potentials. Based on expansions of the short-range scattering amplitude with respect to low energy E in a Laurent series around \(E=0\) explicit expressions for low- energy parameter like scattering length and effective range ...
Albeverio, Sergio +4 more
openaire +3 more sources
Spin asymmetry parameters for electron-hydrogen scattering. I. Elastic scattering
Journal of Physics B: Atomic and Molecular Physics, 1986An attempt is made to provide accurate results for the elastic spin asymmetry parameter in the energy range 0.14-300 eV. A comparison of the present work with other sophisticated calculations at 54.4 and 100 eV shows a significant difference which is attributed to the importance of including exchange couplings to all target eigenstates even at energies
W L van Wyngaarden, H R J Walters
openaire +1 more source
Scattering Parameter Measurement Techniques in Microstrip
1972 IEEE GMTT International Microwave Symposium, 1972Measurements are made on microstrip waveguides with coaxial-to-microstrip wave transitions, by means of a sliding obstacle method, and S-parameters of the transitions and the microstrip are derived for a range of frequencies from 1 to 11 GHz.
J.L. Schallenberg, J.C. Beal
openaire +1 more source
Impact Parameter Representation of the Scattering Amplitude
Canadian Journal of Physics, 1971From the Lippmann–Schwinger equation, the exact and different approximate relations for the impact parameter form of the total scattering amplitude on- and off-the-energy shell are derived. The relation between the impact parameter phase shift and the range of potential is studied, and several methods of determining the potential from the impact ...
openaire +1 more source