Photon Electron Rejecting Alpha Liquid Scintillation (PERALS) Spectrometer

9352037环境中的α放射性同位素，无论是来自自然来源还是人为活动的结果，都越来越受到科学家和整个人口的关注。 光子电子排斥α液体闪烁（PERALS）光谱仪提供了一种快速，准确和有效的方法来量化α活性，而不受环境样品中通常存在的β和γ发射的干扰。 学生们正在放射化学和环境化学的一些新实验和本科研究课程的项目中使用这种光谱仪。 参加这些课程的学生不仅包括化学专业的学生，还包括土木和化学工程，地质，生物和中等教育科学的学生。PERALS系统为这些学生提供了使用最现代化计数设备的实践经验，并使他们能够深入了解环境中α发射体测定的程序和困难。 ***

9352037 Ensor The presence of alpha emitting isotopes in the environment, whether from natural sources or as the result of man-made activities, is of increasing concern to scientists and the population as a whole. A photon electron rejecting alpha liquid scintillation (PERALS) spectrometer provides a fast, accurate, and efficient method to quantify alpha activity free from the interferences caused by beta and gamma emissions generally present in environmental samples. Students are using this spectrometer in a number of new experiments in Radiochemistry and Environmental Chemistry and in projects in an undergraduate research course. Students enrolled in these courses include not only chemistry majors, but students from civil and chemical engineering, geology, biology, and secondary education science. The PERALS system is giving these students hands-on experience with the most modern counting equipment, and is allowing them to gain insight into the procedures for and the difficulties in the assay of alpha emitters in the environment. ***