Induced nuclear reactions: processes – systems – and elements – Testing – sensing – measuring – or detecting a fission reactor...
Patent
1984-12-21
1986-12-02
Cangialosi, Salvatore
Induced nuclear reactions: processes, systems, and elements
Testing, sensing, measuring, or detecting a fission reactor...
376251, 376253, 250374, G21C 1700
Patent
active
046264019
ABSTRACT:
Disclosed is an alpha monitor usable in an automated nuclear fuel pin loading and processing unit. Fuel pins or other elongated pins are fed laterally into the alpha monitor in a singular fashion and are translated by a first roller assembly into a weld flare machining and decontamination substation not forming a part of the invention. Pins return and are lifted upwardly and transferred across to a combined pin lifting and electrode operating means which lifts the pins upwardly into a clamshell electrode assembly which is spread open by a combined pin lifting and electrode operating means. Once inserted the clamshell type electrode arrangement closes around the fuel pins so that inspection can occur. Fuel pins are inspected by charging electrodes to a negative potential and measuring the change in charge occurring when positively charged alpha particles strike the negatively charged electrodes. After inspection, the fuel pins are lowered by the pin lifting and electrode operating means into a second roller assembly which longitudinally conveys approved pins from the airtight enclosure in which the alpha monitor is mounted. If the fuel pins are rejected then they are moved laterally by a second transfer means and onto another system for further processing.
REFERENCES:
patent: 3679877 (1972-07-01), Weiner et al.
patent: 4527064 (1985-07-01), Anderson
"Nuclear Radiation Detection", 2nd Ed, Price (1964), pp. 151-155.
Groves Oliver J.
Kaiser Bruce J.
Oakley David J.
Cangialosi Salvatore
Hightower Judson R.
Nypaver Edward W.
Southworth III Robert
The United States of America as represented by the United States
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