Construction and Testing of a New Atomic Physics Beam Line at the Western Michigan University Accelerator Laboratory

Author

William Andrew Hollerman, Western Michigan University

Date of Award

4-1985

Degree Name

Master of Arts

Department

Physics

First Advisor

Dr. John A. Tanis

Second Advisor

Dr. Gene Bernstein

Third Advisor

Dr. Larry Oppliger

Access Setting

Masters Thesis-Open Access

Abstract

A new beam line containing a differentially-pumped gas cell and charge state analyzing magnet was constructed for the purpose of measuring a wide variety of atomic inner-shell processes, such as excitation, ionization, and charge transfer. The completed system will be able to measure these individual atomic processes using coincidence techniques. Initial testing of the beam line was performed using 40MeV S⁺⁷+Ar collisions to determine the effect of the collimating slit size on the measured x-ray cross sections. These measurements showed that the slip size on the measured x-ray cross sections. These measurements showed that the slit size affects the x-ray cross section by a maximum of ~6% between 4mm² and >100mm². X-ray production was measured for 30-60 MeV S⁺¹³+Ar collisions to determine the relationship between cross section and beam energy. The results show that the x-ray cross sections were found to be about four times smaller than expected bases on data obtained in another experiment.

Recommended Citation

Hollerman, William Andrew, "Construction and Testing of a New Atomic Physics Beam Line at the Western Michigan University Accelerator Laboratory" (1985). Masters Theses. 1379.
https://scholarworks.wmich.edu/masters_theses/1379