Limiting Brightness Temperature for Synchrotron Sources

The inverse Compton catastrophe and high brightness temperature radio sources

Context. The inverse Compton catastrophe is the dramatic rise in the luminosity of inverse-Compton scattered photons predicted to occur when the synchrotron brightness temperature exceeds a threshold value, usually estimated to be 1012 K. However, this effect appears to be in contradiction with observation because: (i) the threshold is substantially exceeded by several intra-day variable radio ...

High Brightness Sources for Colliders

Different possible sources are considered and the. importance of the gun for linear colliders discussed. Low emittance electron guns suitable for SLC are available now and we discuss current work that could also provide high polarization. The relative merits of 7, I?* and $* are discussed and how the next linear collider (NLC) naturally provides both e'* and f. Particular emphasis was placed on...

High Brightness Electron Sources

The production of unprecedentedly high brightness electron beams is a critical aspect of many applications, from free-electron lasers to advanced accelerators. The preferred method for obtaining these beams is the radiofrequency photoinjector. The physics and technology aspects of this device are reviewed here, along prospects for future progress in high-brightness beam development.

Brightness of synchrotron radiation from wigglers

According to literature, while calculating the brightness of synchrotron radiation from wigglers, one needs to account for the so called ‘depth-of-field’ effects. In fact, the particle beam cross section varies along the wiggler. It is usually stated that the effective photon source size increases accordingly, while the brightness is reduced. Here we claim that this is a misconception originati...

Synchrotron IRadiation Sources