arXiv subjects
Publications and source records attributed to A. Kallberg.
The beam diagnostics system for the Double ElectroStatic Ion Ring ExpEriment (DESIREE) project under construction is briefly described. A system which can operate over a wide range of beam intensities and energies for the DESIREE has been built and tested using the CRYRING facility at MSL. Spatial resolution up to 2 mm is achieved.
We consider the conversion of gravitons and photons as a four-wave mixing process. A nonlinear coupled systems of equations involving two gravitons and two photons is obtained, and the energy exchange between the different degrees of freedom is found. The scattering amplitudes are obtained, from which a crossection for incoherent processes can be found. An analytical example is given, and applications to the early Universe are discussed.