Threshold self-powered gamma detector for use as a monitor of power in a nuclear reactor

Patent · Sun Jan 01 00:00:00 EST 1978

OSTI ID:863094

LeVert, Francis E ^[1]; Cox, Samson A ^[2]

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1. Chicago, IL
2. Darien, IL

A self-powered gamma monitor for placement near the core of a nuclear reactor comprises a lead prism surrounded by a coaxial thin nickel sheet, the combination forming a collector. A coaxial polyethylene electron barrier encloses the collector and is separated from the nickel sheet by a vacuum region. The electron barrier is enclosed by a coaxial stainless steel emitter which, in turn, is enclosed within a lead casing. When the detector is placed in a flux of gamma rays, a measure of the current flow in an external circuit between emitter and collector provides a measure of the power level of the reactor.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4091288
• OSTI ID: 863094
• Country of Publication: United States
• Language: English

Related Subjects

threshold
self-powered
gamma
detector
monitor
power
nuclear
reactor
placement
near
core
comprises
lead
prism
surrounded
coaxial
nickel
sheet
combination
forming
collector
polyethylene
electron
barrier
encloses
separated
vacuum
region
enclosed
stainless
steel
emitter
casing
placed
flux
rays
measure
current
flow
external
circuit
provides
level
external circuit
gamma rays
gamma ray
power level
nuclear reactor
stainless steel
current flow
reactor comprises
self-powered gamma
vacuum region
gamma detector
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