Coil spring conveyor for positioning an external radioactive sta

Details Coil spring conveyor for positioning an external radioactive sta Coil spring conveyor for positioning an external radioactive sta

1984-12-10

1986-03-04

Smith, Alfred E.

Radiant energy

Automatic/serial detection of similar sources

2504971, G01N 2300, G01T 120

Patent

active

045741964

ABSTRACT:
In a liquid scintillation counter a standard radioactive source is supported within the tubular bore of a flexible coil spring conveyor. Spacer elements within the coil spring retain the source at a predetermined axial position along the spring. The coil spring is disposed in sliding engagement along a conveyor guideway. A drive roller drivingly engages the spring for conveying the source along the guideway between an operating position adjacent the counting chamber and a remote shielded position.

REFERENCES:
patent: 3393317 (1968-07-01), Spencer
patent: 3500447 (1970-03-01), Frank
patent: 3669093 (1972-06-01), Sauerwein et al.
patent: 3994173 (1976-11-01), Ward

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