X-ray or gamma ray systems or devices – Specific application – Absorption
Patent
1982-01-25
1984-06-12
Howell, Janice A.
X-ray or gamma ray systems or devices
Specific application
Absorption
2503581, G01N 2300
Patent
active
044546050
ABSTRACT:
X-ray apparatus is provided for the inspection of mail, parcels, baggage, and the like, for contraband materials by direct view fluoroscopy. The apparatus is of modular design, in that, it includes a first lead-shielded unit which contains an X-ray fluorescent viewing screen, a mirror, a viewing port for the screen, an inspection compartment, and a door to the inspection compartment; and it also includes a second lead-shielded unit which contains the X-ray generator. The units are mounted in a metal cabinet formed of steel, or other material which need not be lined with heavy lead sheets, or other X-ray impervious material. The first unit is mounted in the upper portion of the cabinet, and the second unit is mounted in the lower portion of the cabinet. X-rays from the second unit are directed through the bottom of the first unit by means of a truncated triangular-shaped guide member formed of X-ray impervious material, such as lead.
REFERENCES:
patent: 3678278 (1972-07-01), Peil
patent: 4297580 (1981-10-01), Juner et al.
patent: 4379348 (1983-04-01), Haas et al.
Beecher Keith D.
Howell Janice A.
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