Radiant energy – Electron energy analysis
Patent
1990-08-09
1991-07-16
Berman, Jack I.
Radiant energy
Electron energy analysis
250309, 250310, 250397, H01J 37252
Patent
active
050327240
ABSTRACT:
A charged-particle energy analyzer includes a hollow axisymmetrical body with an annular opening therein receptive of input electrons from a cylindrical mirror analyzer, the electrons having a distribution of electron energies and a range of electron trajectories. The trajectories each have a radially inward directional component and an axial directional component in a forward direction parallel to the axis. Annular deflectors with negative potentials are disposed coaxially in the body so as to reverse the axial directional components of the electron trajectories. A ring-shaped channel detector detects the electrons relative to radial distance and thereby to energy.
REFERENCES:
patent: 3609352 (1971-09-01), Harris
patent: 3699331 (1972-10-01), Palmberg
patent: 3742214 (1973-06-01), Helmer et al.
patent: 3805057 (1974-04-01), Yanagisawa et al.
patent: 3920990 (1975-11-01), Van Nieuwland et al.
patent: 4100409 (1978-07-01), Brongersma
patent: 4205226 (1980-05-01), Gerlach
"A Cylindrical Mirror Photoelectron Spectrometer with Position-Sensitive Detector Used for X-Ray Analysis" by O. Benka, Nuclear Instruments and Methods, 203. 547-550, (1982).
"Microchannel Plate Detectors" by J. L. Wiza, Nuclear Instruments and Methods, 162, 587-601, (1979).
Gerlach Robert L.
Negri Ronald E.
Berman Jack I.
Grimes E. T.
Ingham H. S.
Nguyen Kiet T.
The Perkin-Elmer Corporation
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