Method and device for the continuous checking of the activity of

Details Method and device for the continuous checking of the activity of Method and device for the continuous checking of the activity of

1996-04-03

1997-12-02

Glick, Edward J.

Radiant energy

Fluent material containment, support or transfer means

With irradiating source or radiating fluent material

2503361, 250394, G21F 932

Patent

active

056939493

ABSTRACT:
A device is provided for permitting real time measurement of the activity of dust confined in a ventilation duct. The device includes a radiation emitter for producing a beam for traversing the duct and a light radiation detector placed in front of the beam. The device also includes at least one gamma radiation detector placed facing the ventilation duct. An acquisition unit and a control unit are also provided for acquisition and processing of real time dust activity measurements. Particular utility is found measuring activity of dust leaving a furnace used for melting nuclear installation scrap.

REFERENCES:
patent: 4092539 (1978-05-01), Pao et al.
patent: 4158769 (1979-06-01), Smith
patent: 4782773 (1988-11-01), Takaoku et al.
"Recycling of Metallic Materials from the Dismantling of nuclear Plants" Sappok; Kerntechnik 56 (1991) No. 6; pp. 376-378 no month.

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