Arrangement for scattering electrons

Details Arrangement for scattering electrons Arrangement for scattering electrons

1977-03-18

1978-06-13

Dixon, Harold A.

Radiant energy

Radiation controlling means

Shields

250514, 250305, G21F 302

Patent

active

040951146

ABSTRACT:
An arrangement is provided for scattering electrons in an electron accelerator capable of variable acceleration energies. The arrangement has two scattering foils arranged at a mutual spacing from one another along a direction of an electron beam. A first scattering foil in the beam direction has a constant thickness whereas a second scattering foil has a thickness which decreases from its center towards its margin. The first scattering foil comprises a set of foils each of which have a scattering capability which corresponds to a selectable acceleration energy. The appropriate member of the set is selected and placed in the beam as the first scattering foil so as to create a relatively constant intensity of radiation over a given volume. The second scattering foil, which is of a more costly and complex construction, remains unchanged in the electron beam.

REFERENCES:
patent: 2724059 (1955-11-01), Gale
patent: 3917954 (1975-11-01), Boge
patent: 4006361 (1977-02-01), Schriber

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