Data acquisition interface for laser flash photolysis

在几秒或更慢的时间尺度上发生的化学反应可以使用传统设备进行监测。然而，许多反应都发生在非常快的时间尺度上；例如，在比人类眨眼快10亿倍的时间尺度上。了解这些反应是如何进行的，对于科学家能够以理性的方式改变它们至关重要。激光闪光光解(LFP)是跟踪快速反应的主要技术之一。反应中间体是由激光照射形成的，动力学之后是溶液吸收的变化。UVIC的系统于1992年实施，迫切需要一个新的数据采集和接口。大多数检测硬件，如单色仪、延迟发生器和示波器都处于正常工作状态，但计算机和控制软件陈旧。在计算机和接口发生故障的情况下，LFP系统将不起作用。继续访问LFP实验对于Bohne小组在超分子动力学方面的工作和在WAN小组在机械有机光化学方面所做的工作是至关重要的，因为他们的学生的工作在很大程度上依赖于LFP实验。

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.