نتایج جستجو برای: polarized

تعداد نتایج: 36437  

2001
Alexander Potylitsyn

The new method for producing of the polarized relativistic positrons is suggested. A beam of unpolarized positrons accelerated up to a few GeV can be polarized during a head-on collision with an intense circularly polarized lazer wave. After a multiple Compton backscattering process the initial positrons may lose a substantial part of its energy and, as consequence, may acquire the significant ...

2004
B. Clasie D. Dutta W. Xu

Traditionally, Atomic Beam Sources (ABSs) are used to produce targets of nuclear polarized Hydrogen (H) or Deuterium (D) for experiments using storage rings. Laser-Driven Sources (LDSs) o er a factor of 20-30 gain in the target thickness (however, with lower polarization) and may produce a higher overall gure of merit. The LDS is based on the technique of spin-exchange optical pumping where alk...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2004
D B Melrose A C Judge

A polarized maser is assumed to operate in an anisotropic medium with natural modes polarized differently to the maser. It is shown that when the spatial growth rate and the generalized Faraday rotation rate are comparable, the polarization of the growing radiation is different from those of the maser and medium. In particular, for a lineary polarized maser operating in a medium with linearly p...

2008
H. Gao

Because of the lack of a free neutron target, deuterium targets have been used extensively in studying the neutron structure. The unique spin structure of the 3He ground state wave function and the recent developments in laser technologies made polarized 3He targets widely used in many experiments from neutron electromagnetic form factor studies to nucleon spin structure function measurements a...

Journal: :Applied optics 1979
G P Können J H de Boer

The Airy theory of the rainbow is extended to polarized light. For both polarization directions a simple analytic expression is obtained for the intensity distribution as a function of the scattering angle in terms of the Airy function and its derivative. This approach is valid at least down to droplet diameters of 0.3 mm in visible light. The degree of polarization of the rainbow is less than ...

Journal: :Nature Astronomy 2019

Journal: :Revista Matemática Complutense 2008

Journal: :OncoImmunology 2012

Journal: :Indian Journal of Dermatology, Venereology and Leprology 2007

Journal: :New Journal of Physics 2021

By taking the spin and polarization of electrons, positrons photons into account in strong-field QED processes nonlinear Compton emission pair production, we find that growth rate cascades ultra-intense laser fields can be substantially reduced. While this means fewer particles are produced, also found them to highly polarized. We further high-energy tail particle spectra is polarized opposite ...

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