Enhancing Undergraduate Education through Mossbauer Spectroscopy

仪器项目将穆斯堡尔光谱学引入物理与天文学系的高级现代物理和核物理实验室。这种类型的实验对学生直接接触量子力学的基本概念非常有用。一系列实验的重点是(1)量子不确定性的观测；(2)通过测量同分异构体位移来观察核电荷分布的变化；(3)观察核塞曼分裂和测量能级分裂产生的内部超细场强；(4)通过检测射频/伽马射线多光子吸收产生的虚态来观察量子不确定性。入学和毕业考试正在实验室进行，以评估教育成果。此外，穆斯堡尔实验正在与化学系和地质系合作使用，使学生接触到使用这种光谱技术来表征材料的化学成分。

The Instrumentation Project is introducing Mossbauer spectroscopy into upper-division modern physics and nuclear physics laboratories in the Department of Physics and Astronomy. This type of experiment can be very useful in directly exposing students to basic concepts in quantum mechanics. A series of experiments is focusing on (1) observation of quantum uncertainty; (2) observation of changes in the nuclear charge distribution through measurement of the isomer shift; (3) observation of nuclear Zeeman splitting and measurement of the internal hyperfine field strength from the level splitting; and (4) observation of quantum uncertainty through detection of virtual states produced by RF/gamma-ray multiphoton absorption. Entrance and exit examinations are being conducted in the laboratories to assess the educational outcomes. Also, Mossbauer experiments are being used in cooperation with the Departments of Chemistry and Geology to expose students to the use of this spectroscopic technique in characterizing the chemical composition of materials.