Spin-polarization detector

Details Spin-polarization detector Spin-polarization detector

1989-02-16

1990-09-04

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Determining nonelectric properties by measuring electric...

Beam of atomic particles

250306, G01N 2300

Patent

active

049547704

ABSTRACT:
A spin-polarization detector having in a region applied with a high voltage a target for scattering a measured electron beam and an electron detector for detecting scattered electrons from the target is disclosed, in which a fluorescent screen is used as the electron detector, and a light pulse from the fluorescent screen is transmitted through an optical guide to a photodetector disposed in a region having the ground potential, to be converted into an electric signal. The spin-polarization detector is simple in structure, small in size, and low in manufacturing cost. Further, when a plurality of scattered-electron detecting systems each including the target and the fluorescent screen are piled in a spin-polarization detector, the detection efficiency of the spin-polarization detector will be greatly enhanced.

REFERENCES:
patent: 2814730 (1957-11-01), Fechter
patent: 4153844 (1979-05-01), Kirschner
patent: 4658138 (1987-04-01), Koike et al.
patent: 4691160 (1987-09-01), Ino
patent: 4760254 (1988-07-01), Pierce et al.
Japanese Journal of Applied Physics, vol. 23, No. 3, Mar. 1984, pp. 487-488.

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