title: Magnetically collimated electron impact spectrometer.
abstract: A new type of electron impact spectrometer using an axial magnetic field for electron collimation is described. The feasibility of this apparatus for collision studies at low impact energies (0.1-30 eV) is demonstrated with vibrational and electronic excitation in He, N2, CO, and C2H2. The potentials and limitations of this new approach are also discussed.
authors.affiliation: Department of Engineering and Applied Science, Mason Laboratory, Yale University, New Haven, Connecticut 06520, USA.
authors.forename: W C
authors.initials: WC
authors.lastname: Tam
authors.forename: S F
authors.initials: SF
authors.lastname: Wong