TY  - JOUR
AB  - A polarized electron source based upon the photoionization of unpolarized Cs atoms by circularly polarized light (Fano effect) has been developed and applied to the study of spin dependence in low-energy electron–atom scattering. Electron intensities of 10 nA with polarizations of 0.63±0.03 have been obtained routinely during continuous runs of up to 75 h. Frequent optical reversal of the direction of the longitudinal electron polarization minimizes systematic effects so that helicity dependent electron-scattering asymmetries smaller than 4×10 to the power of -4 can be measured.
DA  - 1978
DO  - 10.1063/1.1135467
KW  - S Coupling
KW  - Photoionization
KW  - Polarized beams
KW  - Differential cross sections
KW  - Cesium
KW  - Atom collisions
KW  - Electron
KW  - L-
KW  - Hydrogen
KW  - Mott scattering
LA  - eng
IS  - 5
M2  - 571
PY  - 1978
SN  - 0034-6748
SP  - 571-585
T2  - Rev.Sci.Instrum.
TI  - Application of a dc Fano effect polarized electron source to low-energy electron–atom scattering
UR  - https://nbn-resolving.org/urn:nbn:de:0070-pub-17758399
Y2  - 2024-11-21T22:58:37
ER  -