Partial photodetachment cross sections in K−

Mirroring behavior of partial photodetachment and photoionization cross sections in the neighborhood of a resonance

Photodetachment cross sections of the positronium negative ion

The cross sections for the photodetachment from a weakly bound positronium negative ion Ps− below the threshold for the formation of Ps(n = 4) are calculated using the hyperspherical close-coupling method, and are compared with the corresponding spectra for the H− ion. Detailed resonance structures in the spectra near the Ps(n = 2, 3 and 4) thresholds are reported for the first time. The off-re...

Determining the partial photoionization cross-sections of ethyl radicals.

Using a crossed laser-molecular beam scattering apparatus, these experiments photodissociate ethyl chloride at 193 nm and detect the Cl and ethyl products, resolved by their center-of-mass recoil velocities, with vacuum ultraviolet photoionization. The data determine the relative partial cross-sections for the photoionization of ethyl radicals to form C2H5+, C2H4+, and C2H3+ at 12.1 and 13.8 eV...

Reconstruction of Multi-Label Domains from Partial Planar Cross-Sections

We present a novel algorithm for reconstructing a subdivision of the three-dimensional space (given arbitrarilyoriented slices of it) into labeled domains. The input to the algorithm is a collection of nonparallel planar crosssections of an unknown object, where the sections might cover only portions of the supporting planes. (The information in the rest of these planes is, thus, “unknown.”) Ea...

Copper K-Shell Emission Cross Sections for Laser–Solid Experiments

LLE Review, Volume 135 173 Introduction Fast-electron generation in laser–plasma interactions has long been of interest for a variety of reasons, such as avoiding preheat during compression in inertial confinement fusion (ICF), heating the compressed core of an ICF target for fast ignition,1 generating a shock in an ICF target for shock ignition,2 and as a means to produce energetic secondary p...