Vaporization of fission products and certain other materials is estimated for the extreme environmental conditions projected for severe reactor accidents. Partial pressures of gaseous species are calculated from thermochemical data or estimates. Mounts of vapor transported material are evaluated from projected gas flows during two phases of a hypothetical accident--( a) core dry out phase and (...

The paper is aimed to the presentation of the semi-analytical cloud retrieval algorithm developed at Bremen University. The algorithm is capable to derive the cloud top height using SCIAMACHY measurements in the oxygen A-band. The cloud optical thickness is derived from measurements outside gaseous absorption bands. The notion of the phase index is introduced and used to identify ice clouds. SC...

Using continuous radio-frequency waves a coherent beam of atoms can be extracted from a magnetically trapped gaseous Bose-Einstein condensate. These novel atomic beams have matter-wave properties that are very similar to those of laser light in classical optics and are therefore called atom lasers. Furthermore, coupling out atoms from a Bose gas allows one to probe the dramatic changes in the p...

We describe a method for generating a wide spectrum and at the same time improving propagation through a model inhomogeneous gaseous medium. The method is based on using a small two-photon detuning from a Raman resonance to adiabatically establish an appropriate molecular superposition state. This state, in turn, generates a broad spectrum of sidebands whose refractive index, Rayleigh scatter, ...

We experimentally demonstrated that both the electronic Kerr effect and the molecular alignment in gaseous molecules could be applied as transient gates to diagnose 400 nm target pulses. Their birefringence dissimilarity was clearly visualized by the measured spectrogram and retrieved gate function. In the atomic gas argon, a relatively weak and instantaneous cross phase modulation within the p...

CO2 capture and storage have been considered as a key strategy to tackle high concentrations inthe atmosphere. The captured is injected into deep saline aquifers, depleted hydrocarbon reservoirsand coal beds gas, liquid, and/or supercritical phase. phase may affect its injection,migration, displacement efficiency. Research work on has mainly focused thetrapping mechanism, risk assessment, site ...