Photochemistry and Radiation Chemistry of Chlorofluorocarbons

Radiation Physics and Chemistry

We review an atomic resolution imaging method based on the analysis of the fine structure in X-ray absorption anisotropy, which results from incident beam diffraction. For a polychromatic X-ray beam, due to the suppression of higher order diffraction fringes, X-ray absorption anisotropy patterns can be interpreted as distorted real-space projections of the atomic structure around absorbing atom...

International Union of Pure and Applied Chemistry Organic Chemistry Division Commission on Photochemistry

Procedures for the generation and collection of transient UV-visible absorbance data are briefly reviewed. Problems associated with signal generation (scattered light, inhomogeneous distribution of transients, instability of pulsed light sources), signal detection (averaging, filtering), and signal analysis in kinetic and spectrographic flash photolysis are addressed. Methodology for the fittin...

The role of photochemistry in Titan s atmospheric chemistry

Experimental studies were performed to simulate the action of long wavelength solar UV light on Titan s atmosphere. The experiments were carried out in a photochemical flow reactor using a mixture of gases representative of Titan s atmosphere at 70 north latitude (Titan s north pole) in the winter. The solid analog of Titan s haze formed has optical properties comparable to that determined for ...

Radiation chemistry and oxidative stress

Radiation chemistry and oxidative stress