Method of and apparatus for shielding inert-zone electron irradi

Details Method of and apparatus for shielding inert-zone electron irradi Method of and apparatus for shielding inert-zone electron irradi

1978-10-05

1981-02-24

Dixon, Harold A.

Radiant energy

Inspection of solids or liquids by charged particles

Electron probe type

250306, 250359, 250440, 250492R, 250515, G01M 2300, A61K 2702

Patent

active

042524130

ABSTRACT:
This disclosure is concerned with novel techniques for shielding electron-produced scattered radiation in systems wherein a web or sheet is passed longitudinally through an electron irradiation processing region or zone, through the use of a shielded enclosure comprising longitudinally extending shielded-wall collimator slots operating in conjunction with cavity shield traps and critical angles of web-guiding inlet and outlet feed that insure minimal irradiation escape while providing a minimal volume for oxygen-limiting in the irradiation processing zone.

REFERENCES:
patent: 3564238 (1971-02-01), Martin
patent: 3654459 (1972-04-01), Coleman
patent: 3676673 (1972-07-01), Coleman
patent: 3980889 (1976-09-01), Haas et al.
patent: 4020346 (1977-04-01), Dennis
patent: 4143118 (1979-03-01), Laing

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