Related Experiment Video
Updated: Jul 2, 2026

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
Published on: June 28, 2018
Effects of a long entrance aperture upon the azimuthal response of spherical section electrostatic analyzers
J T Gosling1, J R Asbridge, S J Bame
1University of California, Los Alamos Scientific Laboratory, Los Alamos, New Mexico 87545.
Abstract:
The transmission characteristics of spherical section electrostatic analyzers with long entrance apertures have been studied. The presence of a long entrance aperture appreciably broadens the normally narrow azimuthal response of such analyzers at large incident polar angles. A technique for calculating the transmission at any polar angle is presented. Calculated azimuthal response curves at polar angles of 0 degrees , 25 degrees , and 50 degrees agree well with laboratory measurements for a 90 degrees section analyzer. In the limit of zero polar angle, our calculations reveal that a previously derived and widely used analytical expression for the integrated energy-angle response underestimates that response by 12%-25% depending upon the analyzer bending angle. An analytical expression that better approximates the true response is presented.
Related Concept Videos
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.
Atomic Emission Spectroscopy: Overview
Atomic Emission Spectroscopy: Instrumentation
Atomic Emission Spectroscopy: Lab
Mass Analyzers: Common Types
Atomic Emission Spectroscopy: Interference

