# title
Upgrade of ESA-22D photoelectron spectrometer

# abstract
Electron spectroscopy is a widely used method for observing the structure and fundamental processes in atomic systems. By employing energy- and angle-resolved photoelectron spectroscopy, valuable information can be obtained about ionization and excitation in photon-atom interactions.

# authors[].organizations[].label
Texas A&M Engineering Experiment Station (TEES)

# keywords[]
5102 Atomic, Molecular And Optical Physics

# authorList[]
brk, L., Balog, R., Herczku, P., Kovcs, S., Hatvani, D., Ricz, S., & Kvr, . .