Data acquisition interface for laser flash photolysis

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Chemical reactions that occur on time scales of seconds or slower can be monitored using conventional equipment. However, many reactions occur on very fast time scales; for example on time scales that are a billion times faster than the blinking of the human eye. Understanding how these reactions proceed is essential for scientists to be able to alter them in a rational fashion. Laser flash photolysis (Lfp) is one of the primary techniques to follow fast reactions. Reactive intermediates are formed by laser irradiation and the kinetics are followed by changes in the absorption of the solution. The system at UVic was implemented in 1992 and urgently needs a new data acquisition  interface. Most of the detection hardware, such as monochromators, delay generators and oscilloscopes are in working order, but the computer and control software are obsolete. In the case of failure of the computer and interface the Lfp system will not be functional. Continued access to Lfp experiments is essential for the work done in the Bohne group on supramolecular dynamics and in the Wan group on mechanistic organic photochemistry, since the work of their students relies heavily on lfp experiments.