The Compton Effect and Tertiary X-Radiation

The Compton Effect and Tertiary X-Radiation.

Compton downscattering in Cyg X - 3 3 3 THE EFFECT OF COMPTON SCATTERING ON TIMING PROPERTIES

We consider the effect of Compton scattering by a Thomson-thick, low-temperature, plasma cloud surrounding the compact object in the binary system Cyg X-3 on its X-ray energy and power spectra. The presence of such a cloud was earlier inferred from the energy-independent orbital modulation of the X-ray flux and the lack of high frequencies in its power spectra. Here, we consider the effect of C...

The Čerenkov-Compton effect

The two-photon production by motion of a charged particle in a medium is considered. This process is called Čerenkov-Compton effect (ČCE) because the production of photons is calculated from the Feynman diagram for the Compton effect in a medium. This process is not forbidden in quantum electrodynamics of dielectric media.The cross section of this process in Mandelstam variables is calculated. ...

Advances and Challenges in Compton Radiation Sources*

Ongoing developments in Compton radiation sources are aimed toward a diversity of potential applications, ranging from university-scale compact x-ray light sources and metrology tools for EUV lithography, to positron sources for ee colliders. Novel conceptual approaches are pursued on different routes: One research direction lies in multiplying the source’s repetition rate and increasing its av...

the evaluation of language related engagment and task related engagment with the purpose of investigating the effect of metatalk and task typology

abstract while task-based instruction is considered as the most effective way to learn a language in the related literature, it is oversimplified on various grounds. different variables may affect how students are engaged with not only the language but also with the task itself. the present study was conducted to investigate language and task related engagement on the basis of the task typolog...